Initial TQt conversion

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/rosegarden@1172292 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

44 files changed, 519 insertions, 519 deletions

diff --git a/src/sound/AlsaDriver.cpp b/src/sound/AlsaDriver.cpp
index 9d512d9..16a152b 100644
--- a/src/sound/AlsaDriver.cpp
+++ b/src/sound/AlsaDriver.cpp
@@ -46,7 +46,7 @@
 #include "AudioPlayQueue.h"
 #include "ExternalTransport.h"
 
-#include <qregexp.h>
+#include <tqregexp.h>
 #include <pthread.h>
 
 
@@ -969,13 +969,13 @@ AlsaDriver::createMidiDevice(AlsaPortDescription *port,
 
     if (reqDirection == MidiDevice::Play) {
 
-        QString portName;
+        TQString portName;
 
-        if (QString(deviceName).startsWith("Anonymous MIDI device ")) {
-            portName = QString("out %1")
+        if (TQString(deviceName).startsWith("Anonymous MIDI device ")) {
+            portName = TQString("out %1")
                        .arg(m_outputPorts.size() + 1);
         } else {
-            portName = QString("out %1 - %2")
+            portName = TQString("out %1 - %2")
                        .arg(m_outputPorts.size() + 1)
                        .arg(deviceName);
         }
@@ -1140,7 +1140,7 @@ AlsaDriver::removeDevice(DeviceId id)
 }
 
 void
-AlsaDriver::renameDevice(DeviceId id, QString name)
+AlsaDriver::renameDevice(DeviceId id, TQString name)
 {
     DeviceIntMap::iterator i = m_outputPorts.find(id);
     if (i == m_outputPorts.end()) {
@@ -1153,10 +1153,10 @@ AlsaDriver::renameDevice(DeviceId id, QString name)
     snd_seq_port_info_alloca(&pinfo);
     snd_seq_get_port_info(m_midiHandle, i->second, pinfo);
 
-    QString oldName = snd_seq_port_info_get_name(pinfo);
+    TQString oldName = snd_seq_port_info_get_name(pinfo);
     int sep = oldName.find(" - ");
 
-    QString newName;
+    TQString newName;
 
     if (name.startsWith("Anonymous MIDI device ")) {
         if (sep < 0)
@@ -1249,7 +1249,7 @@ AlsaDriver::getConnection(Device::DeviceType type,
 }
 
 void
-AlsaDriver::setConnectionToDevice(MappedDevice &device, QString connection)
+AlsaDriver::setConnectionToDevice(MappedDevice &device, TQString connection)
 {
     ClientPortPair pair( -1, -1);
     if (connection && connection != "") {
@@ -1259,10 +1259,10 @@ AlsaDriver::setConnectionToDevice(MappedDevice &device, QString connection)
 }
 
 void
-AlsaDriver::setConnectionToDevice(MappedDevice &device, QString connection,
+AlsaDriver::setConnectionToDevice(MappedDevice &device, TQString connection,
                                   const ClientPortPair &pair)
 {
-    QString prevConnection = device.getConnection().c_str();
+    TQString prevConnection = device.getConnection().c_str();
     device.setConnection(connection.data());
 
     if (device.getDirection() == MidiDevice::Play) {
@@ -1320,7 +1320,7 @@ AlsaDriver::setConnectionToDevice(MappedDevice &device, QString connection,
 }
 
 void
-AlsaDriver::setConnection(DeviceId id, QString connection)
+AlsaDriver::setConnection(DeviceId id, TQString connection)
 {
     Audit audit;
     ClientPortPair port(getPortByName(connection.data()));
@@ -1346,7 +1346,7 @@ AlsaDriver::setConnection(DeviceId id, QString connection)
 }
 
 void
-AlsaDriver::setPlausibleConnection(DeviceId id, QString idealConnection)
+AlsaDriver::setPlausibleConnection(DeviceId id, TQString idealConnection)
 {
     Audit audit;
     ClientPortPair port(getPortByName(idealConnection.data()));
@@ -1389,16 +1389,16 @@ AlsaDriver::setPlausibleConnection(DeviceId id, QString idealConnection)
 
     int portNo = -1;
     if (client > 0) {
-        QString remainder = idealConnection.mid(colon + 1);
+        TQString remainder = idealConnection.mid(colon + 1);
         int space = remainder.find(" ");
         if (space >= 0)
             portNo = remainder.left(space).toInt();
     }
 
     int firstSpace = idealConnection.find(" ");
-    int endOfText = idealConnection.find(QRegExp("[^\\w ]"), firstSpace);
+    int endOfText = idealConnection.find(TQRegExp("[^\\w ]"), firstSpace);
 
-    QString text;
+    TQString text;
     if (endOfText < 2) {
         text = idealConnection.mid(firstSpace + 1);
     } else {
@@ -1448,7 +1448,7 @@ AlsaDriver::setPlausibleConnection(DeviceId id, QString idealConnection)
                     }
 
                     if (testName && text != "" &&
-                            !QString(port->m_name.c_str()).contains(text))
+                            !TQString(port->m_name.c_str()).contains(text))
                         continue;
 
                     if (testUsed) {
@@ -1603,7 +1603,7 @@ AlsaDriver::getCurrentTimer()
 }
 
 void
-AlsaDriver::setCurrentTimer(QString timer)
+AlsaDriver::setCurrentTimer(TQString timer)
 {
     Audit audit;
 
@@ -4479,7 +4479,7 @@ AlsaDriver::processEventsOut(const MappedComposition &mC,
 bool
 AlsaDriver::record(RecordStatus recordStatus,
                    const std::vector<InstrumentId> *armedInstruments,
-                   const std::vector<QString> *audioFileNames)
+                   const std::vector<TQString> *audioFileNames)
 {
     m_recordingInstruments.clear();
 
@@ -4501,7 +4501,7 @@ AlsaDriver::record(RecordStatus recordStatus,
                     continue;
                 }
 
-                QString fileName = (*audioFileNames)[audioCount];
+                TQString fileName = (*audioFileNames)[audioCount];
 
                 if (id >= AudioInstrumentBase &&
                         id < MidiInstrumentBase) {
@@ -4781,7 +4781,7 @@ AlsaDriver::checkForNewClients()
 
             audit << (*i)->m_name << std::endl;
 
-            QString portName = (*i)->m_name.c_str();
+            TQString portName = (*i)->m_name.c_str();
             ClientPortPair portPair = ClientPortPair((*i)->m_client,
                                       (*i)->m_port);
 
@@ -5257,7 +5257,7 @@ AlsaDriver::scavengePlugins()
 QString
 AlsaDriver::getStatusLog()
 {
-    return QString::fromUtf8(Audit::getAudit().c_str());
+    return TQString::fromUtf8(Audit::getAudit().c_str());
 }
 
 
diff --git a/src/sound/AlsaDriver.h b/src/sound/AlsaDriver.h
index e80e30f..973fc72 100644
--- a/src/sound/AlsaDriver.h
+++ b/src/sound/AlsaDriver.h
@@ -70,7 +70,7 @@ public:
     
     virtual bool record(RecordStatus recordStatus,
                         const std::vector<InstrumentId> *armedInstruments = 0,
-                        const std::vector<QString> *audioFileNames = 0);
+                        const std::vector<TQString> *audioFileNames = 0);
 
     virtual void startClocks();
     virtual void startClocksApproved(); // called by JACK driver in sync mode
@@ -149,7 +149,7 @@ public:
     // Plugin instance management
     //
     virtual void setPluginInstance(InstrumentId id,
-                                   QString identifier,
+                                   TQString identifier,
                                    int position) {
 #ifdef HAVE_LIBJACK
         if (m_jackDriver) m_jackDriver->setPluginInstance(id, identifier, position);
@@ -196,35 +196,35 @@ public:
 #endif
     }
 
-    virtual QStringList getPluginInstancePrograms(InstrumentId id,
+    virtual TQStringList getPluginInstancePrograms(InstrumentId id,
                                                   int position) {
 #ifdef HAVE_LIBJACK
         if (m_jackDriver) return m_jackDriver->getPluginInstancePrograms(id, position);
 #endif
-        return QStringList();
+        return TQStringList();
     }
 
-    virtual QString getPluginInstanceProgram(InstrumentId id,
+    virtual TQString getPluginInstanceProgram(InstrumentId id,
                                              int position) {
 #ifdef HAVE_LIBJACK
         if (m_jackDriver) return m_jackDriver->getPluginInstanceProgram(id, position);
 #endif
-        return QString();
+        return TQString();
     }
 
-    virtual QString getPluginInstanceProgram(InstrumentId id,
+    virtual TQString getPluginInstanceProgram(InstrumentId id,
                                              int position,
                                              int bank,
                                              int program) {
 #ifdef HAVE_LIBJACK
         if (m_jackDriver) return m_jackDriver->getPluginInstanceProgram(id, position, bank, program);
 #endif
-        return QString();
+        return TQString();
     }
 
     virtual unsigned long getPluginInstanceProgram(InstrumentId id,
                                                    int position,
-                                                   QString name) {
+                                                   TQString name) {
 #ifdef HAVE_LIBJACK
         if (m_jackDriver) return m_jackDriver->getPluginInstanceProgram(id, position, name);
 #endif
@@ -233,20 +233,20 @@ public:
     
     virtual void setPluginInstanceProgram(InstrumentId id,
                                           int position,
-                                          QString program) {
+                                          TQString program) {
 #ifdef HAVE_LIBJACK
         if (m_jackDriver) m_jackDriver->setPluginInstanceProgram(id, position, program);
 #endif
     }
 
-    virtual QString configurePlugin(InstrumentId id,
+    virtual TQString configurePlugin(InstrumentId id,
                                     int position,
-                                    QString key,
-                                    QString value) {
+                                    TQString key,
+                                    TQString value) {
 #ifdef HAVE_LIBJACK
         if (m_jackDriver) return m_jackDriver->configurePlugin(id, position, key, value);
 #endif
-        return QString();
+        return TQString();
     }
 
     virtual void setAudioBussLevels(int bussId,
@@ -333,22 +333,22 @@ public:
     virtual DeviceId addDevice(Device::DeviceType type,
                                MidiDevice::DeviceDirection direction);
     virtual void removeDevice(DeviceId id);
-    virtual void renameDevice(DeviceId id, QString name);
+    virtual void renameDevice(DeviceId id, TQString name);
 
     // Get available connections per device
     // 
     virtual unsigned int getConnections(Device::DeviceType type,
                                         MidiDevice::DeviceDirection direction);
-    virtual QString getConnection(Device::DeviceType type,
+    virtual TQString getConnection(Device::DeviceType type,
                                   MidiDevice::DeviceDirection direction,
                                   unsigned int connectionNo);
-    virtual void setConnection(DeviceId deviceId, QString connection);
-    virtual void setPlausibleConnection(DeviceId deviceId, QString connection);
+    virtual void setConnection(DeviceId deviceId, TQString connection);
+    virtual void setPlausibleConnection(DeviceId deviceId, TQString connection);
 
     virtual unsigned int getTimers();
-    virtual QString getTimer(unsigned int);
-    virtual QString getCurrentTimer();
-    virtual void setCurrentTimer(QString);
+    virtual TQString getTimer(unsigned int);
+    virtual TQString getCurrentTimer();
+    virtual void setCurrentTimer(TQString);
  
     virtual void getAudioInstrumentNumbers(InstrumentId &audioInstrumentBase,
                                            int &audioInstrumentCount) {
@@ -370,7 +370,7 @@ public:
 #endif
     }
 
-    virtual QString getStatusLog();
+    virtual TQString getStatusLog();
 
     // To be called regularly from JACK driver when idle
     void checkTimerSync(size_t frames);
@@ -415,8 +415,8 @@ protected:
 
     virtual void processAudioQueue(bool /* now */) { }
 
-    virtual void setConnectionToDevice(MappedDevice &device, QString connection);
-    virtual void setConnectionToDevice(MappedDevice &device, QString connection,
+    virtual void setConnectionToDevice(MappedDevice &device, TQString connection);
+    virtual void setConnectionToDevice(MappedDevice &device, TQString connection,
                                        const ClientPortPair &pair);
 
 private:
diff --git a/src/sound/AudioFile.cpp b/src/sound/AudioFile.cpp
index 6eba15a..9af3ce6 100644
--- a/src/sound/AudioFile.cpp
+++ b/src/sound/AudioFile.cpp
@@ -37,7 +37,7 @@ AudioFile::AudioFile(unsigned int id,
         m_channels(0),
         m_dataChunkIndex( -1)
 {
-    m_fileInfo = new QFileInfo(QString(fileName.c_str()));
+    m_fileInfo = new TQFileInfo(TQString(fileName.c_str()));
 }
 
 AudioFile::AudioFile(const std::string &fileName,
@@ -53,7 +53,7 @@ AudioFile::AudioFile(const std::string &fileName,
         m_channels(channels),
         m_dataChunkIndex( -1)
 {
-    m_fileInfo = new QFileInfo(QString(fileName.c_str()));
+    m_fileInfo = new TQFileInfo(TQString(fileName.c_str()));
 }
 
 AudioFile::~AudioFile()
@@ -67,7 +67,7 @@ AudioFile::getModificationDateTime()
     if (m_fileInfo)
         return m_fileInfo->lastModified();
     else
-        return QDateTime();
+        return TQDateTime();
 }
 
 
diff --git a/src/sound/AudioFile.h b/src/sound/AudioFile.h
index 1acbe61..6870e76 100644
--- a/src/sound/AudioFile.h
+++ b/src/sound/AudioFile.h
@@ -27,7 +27,7 @@
 #include <vector>
 #include <cmath>
 
-#include <qfileinfo.h>
+#include <tqfileinfo.h>
 
 #include "SoundFile.h"
 #include "RealTime.h"
@@ -171,7 +171,7 @@ public:
 
     // Return the modification timestamp
     //
-    QDateTime getModificationDateTime();
+    TQDateTime getModificationDateTime();
 
     // Implement in actual file type
     //
@@ -206,7 +206,7 @@ protected:
     //
     long long      m_dataChunkIndex;
 
-    QFileInfo     *m_fileInfo;
+    TQFileInfo     *m_fileInfo;
 
 };
 
diff --git a/src/sound/AudioFileManager.cpp b/src/sound/AudioFileManager.cpp
index 93be26c..46525c4 100644
--- a/src/sound/AudioFileManager.cpp
+++ b/src/sound/AudioFileManager.cpp
@@ -41,10 +41,10 @@
 #include <kio/netaccess.h>
 #include <kmessagebox.h>
 
-#include <qpixmap.h>
-#include <qpainter.h>
-#include <qdatetime.h>
-#include <qfile.h>
+#include <tqpixmap.h>
+#include <tqpainter.h>
+#include <tqdatetime.h>
+#include <tqfile.h>
 
 #include "AudioFile.h"
 #include "AudioFileManager.h"
@@ -101,8 +101,8 @@ AudioFileManager::AudioFileManager() :
 
     // Retransmit progress
     //
-    connect(&m_peakManager, SIGNAL(setProgress(int)),
-            this, SIGNAL(setProgress(int)));
+    connect(&m_peakManager, TQT_SIGNAL(setProgress(int)),
+            this, TQT_SIGNAL(setProgress(int)));
 }
 
 AudioFileManager::~AudioFileManager()
@@ -118,10 +118,10 @@ AudioFileManager::addFile(const std::string &filePath)
     MutexLock lock (&_audioFileManagerLock)
         ;
 
-    QString ext;
+    TQString ext;
 
     if (filePath.length() > 3) {
-	ext = QString(filePath.substr(filePath.length() - 3, 3).c_str()).lower();
+	ext = TQString(filePath.substr(filePath.length() - 3, 3).c_str()).lower();
     }
 
     // Check for file existing already in manager by path
@@ -252,7 +252,7 @@ AudioFileManager::insertFile(const std::string &name,
     // If we've expanded and we can't find the file
     // then try to find it in audio file directory.
     //
-    QFileInfo info(foundFileName.c_str());
+    TQFileInfo info(foundFileName.c_str());
     if (!info.exists())
         foundFileName = getFileInPath(foundFileName);
 
@@ -353,7 +353,7 @@ AudioFileManager::insertFile(const std::string &name,
     // If we've expanded and we can't find the file
     // then try to find it in audio file directory.
     //
-    QFileInfo info(foundFileName.c_str());
+    TQFileInfo info(foundFileName.c_str());
     if (!info.exists())
         foundFileName = getFileInPath(foundFileName);
 
@@ -422,7 +422,7 @@ AudioFileManager::setAudioPath(const std::string &path)
 void
 AudioFileManager::testAudioPath() throw (BadAudioPathException)
 {
-    QFileInfo info(m_audioPath.c_str());
+    TQFileInfo info(m_audioPath.c_str());
     if (!(info.exists() && info.isDir() && !info.isRelative() &&
             info.isWritable() && info.isReadable()))
         throw BadAudioPathException(m_audioPath.data());
@@ -439,7 +439,7 @@ AudioFileManager::getFileInPath(const std::string &file)
     MutexLock lock (&_audioFileManagerLock)
         ;
 
-    QFileInfo info(file.c_str());
+    TQFileInfo info(file.c_str());
 
     if (info.exists())
         return file;
@@ -447,8 +447,8 @@ AudioFileManager::getFileInPath(const std::string &file)
     // Build the search filename from the audio path and
     // the file basename.
     //
-    QString searchFile = QString(m_audioPath.c_str()) + info.fileName();
-    QFileInfo searchInfo(searchFile);
+    TQString searchFile = TQString(m_audioPath.c_str()) + info.fileName();
+    TQFileInfo searchInfo(searchFile);
 
     if (searchInfo.exists())
         return searchFile.latin1();
@@ -532,15 +532,15 @@ AudioFileManager::createRecordingAudioFile()
         ;
 
     AudioFileId newId = getFirstUnusedID();
-    QString fileName = "";
+    TQString fileName = "";
 
     while (fileName == "") {
 
-        fileName = QString("rg-%1-%2.wav")
-                   .arg(QDateTime::currentDateTime().toString("yyyyMMdd-hhmmss"))
+        fileName = TQString("rg-%1-%2.wav")
+                   .arg(TQDateTime::currentDateTime().toString("yyyyMMdd-hhmmss"))
                    .arg(newId + 1);
 
-        if (QFile(m_audioPath.c_str() + fileName).exists()) {
+        if (TQFile(m_audioPath.c_str() + fileName).exists()) {
             fileName = "";
             ++newId;
         }
@@ -611,7 +611,7 @@ AudioFileManager::createDerivedAudioFile(AudioFileId source,
     if (!sourceFile) return 0;
 
     AudioFileId newId = getFirstUnusedID();
-    QString fileName = "";
+    TQString fileName = "";
 
     std::string sourceBase = sourceFile->getShortFilename();
     if (sourceBase.length() > 4 && sourceBase.substr(0, 3) == "rg-") {
@@ -621,13 +621,13 @@ AudioFileManager::createDerivedAudioFile(AudioFileId source,
 
     while (fileName == "") {
 
-        fileName = QString("%1-%2-%3-%4.wav")
+        fileName = TQString("%1-%2-%3-%4.wav")
 	    .arg(prefix)
 	    .arg(sourceBase)
-	    .arg(QDateTime::currentDateTime().toString("yyyyMMdd-hhmmss"))
+	    .arg(TQDateTime::currentDateTime().toString("yyyyMMdd-hhmmss"))
 	    .arg(newId + 1);
 
-        if (QFile(m_audioPath.c_str() + fileName).exists()) {
+        if (TQFile(m_audioPath.c_str() + fileName).exists()) {
             fileName = "";
             ++newId;
         }
@@ -659,7 +659,7 @@ AudioFileManager::importURL(const KURL &url, int sampleRate)
 
     emit setOperationName(i18n("Downloading file %1").arg(url.prettyURL()));
 
-    QString localPath = "";
+    TQString localPath = "";
     if (!KIO::NetAccess::download(url, localPath)) {
 	KMessageBox::error(0, i18n("Cannot download file %1").arg(url.prettyURL()));
 	throw SoundFile::BadSoundFileException(url.prettyURL());
@@ -688,7 +688,7 @@ AudioFileManager::fileNeedsConversion(const std::string &fileName,
     *proc << "rosegarden-audiofile-importer";
     if (sampleRate > 0) {
         *proc << "-r";
-        *proc << QString("%1").arg(sampleRate);
+        *proc << TQString("%1").arg(sampleRate);
     }
     *proc << "-w";
     *proc << fileName.c_str();
@@ -715,7 +715,7 @@ AudioFileManager::importFile(const std::string &fileName, int sampleRate)
     *proc << "rosegarden-audiofile-importer";
     if (sampleRate > 0) {
 	*proc << "-r";
-	*proc << QString("%1").arg(sampleRate);
+	*proc << TQString("%1").arg(sampleRate);
     }
     *proc << "-w";
     *proc << fileName.c_str();
@@ -742,9 +742,9 @@ AudioFileManager::importFile(const std::string &fileName, int sampleRate)
     }
 
     AudioFileId newId = getFirstUnusedID();
-    QString targetName = "";
+    TQString targetName = "";
 
-    QString sourceBase = QFileInfo(fileName.c_str()).baseName();
+    TQString sourceBase = TQFileInfo(fileName.c_str()).baseName();
     if (sourceBase.length() > 3 && sourceBase.startsWith("rg-")) {
 	sourceBase = sourceBase.right(sourceBase.length() - 3);
     }
@@ -752,12 +752,12 @@ AudioFileManager::importFile(const std::string &fileName, int sampleRate)
 
     while (targetName == "") {
 
-        targetName = QString("conv-%2-%3-%4.wav")
+        targetName = TQString("conv-%2-%3-%4.wav")
 	    .arg(sourceBase)
-	    .arg(QDateTime::currentDateTime().toString("yyyyMMdd-hhmmss"))
+	    .arg(TQDateTime::currentDateTime().toString("yyyyMMdd-hhmmss"))
 	    .arg(newId + 1);
 
-        if (QFile(m_audioPath.c_str() + targetName).exists()) {
+        if (TQFile(m_audioPath.c_str() + targetName).exists()) {
             targetName = "";
             ++newId;
         }
@@ -768,7 +768,7 @@ AudioFileManager::importFile(const std::string &fileName, int sampleRate)
     *m_importProcess << "rosegarden-audiofile-importer";
     if (sampleRate > 0) {
 	*m_importProcess << "-r";
-	*m_importProcess << QString("%1").arg(sampleRate);
+	*m_importProcess << TQString("%1").arg(sampleRate);
     }
     *m_importProcess << "-c";
     *m_importProcess << fileName.c_str();
@@ -1048,7 +1048,7 @@ void
 AudioFileManager::drawPreview(AudioFileId id,
                               const RealTime &startTime,
                               const RealTime &endTime,
-                              QPixmap *pixmap)
+                              TQPixmap *pixmap)
 {
     MutexLock lock (&_audioFileManagerLock)
         ;
@@ -1070,11 +1070,11 @@ AudioFileManager::drawPreview(AudioFileId id,
                                  pixmap->width(),
                                  false);
 
-    QPainter painter(pixmap);
-    pixmap->fill(kapp->palette().color(QPalette::Active,
-                                       QColorGroup::Base));
-    painter.setPen(kapp->palette().color(QPalette::Active,
-                                         QColorGroup::Dark));
+    TQPainter painter(pixmap);
+    pixmap->fill(kapp->palette().color(TQPalette::Active,
+                                       TQColorGroup::Base));
+    painter.setPen(kapp->palette().color(TQPalette::Active,
+                                         TQColorGroup::Dark));
 
     if (values.size() == 0) {
 #ifdef DEBUG_AUDIOFILEMANAGER
@@ -1124,7 +1124,7 @@ AudioFileManager::drawHighlightedPreview(AudioFileId id,
         const RealTime &endTime,
         const RealTime &highlightStart,
         const RealTime &highlightEnd,
-        QPixmap *pixmap)
+        TQPixmap *pixmap)
 {
     MutexLock lock (&_audioFileManagerLock)
         ;
@@ -1151,9 +1151,9 @@ AudioFileManager::drawHighlightedPreview(AudioFileId id,
     int endWidth = (int)(double(pixmap->width()) * (highlightEnd /
                          (endTime - startTime)));
 
-    QPainter painter(pixmap);
-    pixmap->fill(kapp->palette().color(QPalette::Active,
-                                       QColorGroup::Base));
+    TQPainter painter(pixmap);
+    pixmap->fill(kapp->palette().color(TQPalette::Active,
+                                       TQColorGroup::Base));
 
     float yStep = pixmap->height() / 2;
     int channels = audioFile->getChannels();
@@ -1177,11 +1177,11 @@ AudioFileManager::drawHighlightedPreview(AudioFileId id,
         }
 
         if (i < startWidth || i > endWidth)
-            painter.setPen(kapp->palette().color(QPalette::Active,
-                                                 QColorGroup::Mid));
+            painter.setPen(kapp->palette().color(TQPalette::Active,
+                                                 TQColorGroup::Mid));
         else
-            painter.setPen(kapp->palette().color(QPalette::Active,
-                                                 QColorGroup::Dark));
+            painter.setPen(kapp->palette().color(TQPalette::Active,
+                                                 TQColorGroup::Dark));
 
         painter.drawLine(i, static_cast<int>(yStep - ch1Value * yStep),
                          i, static_cast<int>(yStep + ch2Value * yStep));
diff --git a/src/sound/AudioFileManager.h b/src/sound/AudioFileManager.h
index 9721669..67ae6c6 100644
--- a/src/sound/AudioFileManager.h
+++ b/src/sound/AudioFileManager.h
@@ -26,8 +26,8 @@
 #include <set>
 #include <map>
 
-#include <qpixmap.h>
-#include <qobject.h>
+#include <tqpixmap.h>
+#include <tqobject.h>
 
 #include "AudioFile.h"
 #include "XmlExportable.h"
@@ -58,7 +58,7 @@ namespace Rosegarden
 
 typedef std::vector<AudioFile*>::const_iterator AudioFileManagerIterator;
 
-class AudioFileManager : public QObject, public XmlExportable
+class AudioFileManager : public TQObject, public XmlExportable
 {
     Q_OBJECT
 public:
@@ -227,12 +227,12 @@ public:
                                   bool withMinima);
     // throw BadPeakFileException, BadAudioPathException
 
-    // Draw a fixed size (fixed by QPixmap) preview of an audio file
+    // Draw a fixed size (fixed by TQPixmap) preview of an audio file
     //
     void drawPreview(AudioFileId id,
                      const RealTime &startTime, 
                      const RealTime &endTime,
-                     QPixmap *pixmap);
+                     TQPixmap *pixmap);
     // throw BadPeakFileException, BadAudioPathException
 
     // Usually used to show how an audio Segment makes up part of
@@ -243,7 +243,7 @@ public:
                                 const RealTime &endTime,
                                 const RealTime &highlightStart,
                                 const RealTime &highlightEnd,
-                                QPixmap *pixmap);
+                                TQPixmap *pixmap);
     // throw BadPeakFileException, BadAudioPathException
 
     // Get a short file name from a long one (with '/'s)
@@ -290,7 +290,7 @@ public:
 
 signals:
     void setProgress(int);
-    void setOperationName(QString);
+    void setOperationName(TQString);
 
 public slots:
     // Cancel a running preview
diff --git a/src/sound/AudioFileTimeStretcher.h b/src/sound/AudioFileTimeStretcher.h
index c02e286..f2de00c 100644
--- a/src/sound/AudioFileTimeStretcher.h
+++ b/src/sound/AudioFileTimeStretcher.h
@@ -25,7 +25,7 @@
 #ifndef _AUDIO_FILE_TIME_STRETCHER_H_
 #define _AUDIO_FILE_TIME_STRETCHER_H_
 
-#include <qobject.h>
+#include <tqobject.h>
 #include "AudioFile.h"
 #include "base/Exception.h"
 
diff --git a/src/sound/AudioProcess.cpp b/src/sound/AudioProcess.cpp
index 9b44e13..1fb5a61 100644
--- a/src/sound/AudioProcess.cpp
+++ b/src/sound/AudioProcess.cpp
@@ -909,7 +909,7 @@ AudioInstrumentMixer::BufferRec::~BufferRec()
 
 
 void
-AudioInstrumentMixer::setPlugin(InstrumentId id, int position, QString identifier)
+AudioInstrumentMixer::setPlugin(InstrumentId id, int position, TQString identifier)
 {
     // Not RT safe
 
@@ -1089,7 +1089,7 @@ AudioInstrumentMixer::getPluginPrograms(InstrumentId id, int position)
 {
     // Not RT safe
 
-    QStringList programs;
+    TQStringList programs;
     RunnablePluginInstance *instance = getPluginInstance(id, position);
     if (instance)
         programs = instance->getPrograms();
@@ -1101,7 +1101,7 @@ AudioInstrumentMixer::getPluginProgram(InstrumentId id, int position)
 {
     // Not RT safe
 
-    QString program;
+    TQString program;
     RunnablePluginInstance *instance = getPluginInstance(id, position);
     if (instance)
         program = instance->getCurrentProgram();
@@ -1114,7 +1114,7 @@ AudioInstrumentMixer::getPluginProgram(InstrumentId id, int position, int bank,
 {
     // Not RT safe
 
-    QString programName;
+    TQString programName;
     RunnablePluginInstance *instance = getPluginInstance(id, position);
     if (instance)
         programName = instance->getProgram(bank, program);
@@ -1122,7 +1122,7 @@ AudioInstrumentMixer::getPluginProgram(InstrumentId id, int position, int bank,
 }
 
 unsigned long
-AudioInstrumentMixer::getPluginProgram(InstrumentId id, int position, QString name)
+AudioInstrumentMixer::getPluginProgram(InstrumentId id, int position, TQString name)
 {
     // Not RT safe
 
@@ -1134,7 +1134,7 @@ AudioInstrumentMixer::getPluginProgram(InstrumentId id, int position, QString na
 }
 
 void
-AudioInstrumentMixer::setPluginProgram(InstrumentId id, int position, QString program)
+AudioInstrumentMixer::setPluginProgram(InstrumentId id, int position, TQString program)
 {
     // Not RT safe
 
@@ -1144,14 +1144,14 @@ AudioInstrumentMixer::setPluginProgram(InstrumentId id, int position, QString pr
 }
 
 QString
-AudioInstrumentMixer::configurePlugin(InstrumentId id, int position, QString key, QString value)
+AudioInstrumentMixer::configurePlugin(InstrumentId id, int position, TQString key, TQString value)
 {
     // Not RT safe
 
     RunnablePluginInstance *instance = getPluginInstance(id, position);
     if (instance)
         return instance->configure(key, value);
-    return QString();
+    return TQString();
 }
 
 void
diff --git a/src/sound/AudioProcess.h b/src/sound/AudioProcess.h
index b517bc9..c21ab01 100644
--- a/src/sound/AudioProcess.h
+++ b/src/sound/AudioProcess.h
@@ -188,7 +188,7 @@ public:
 
     void setBussMixer(AudioBussMixer *mixer) { m_bussMixer = mixer; }
 
-    void setPlugin(InstrumentId id, int position, QString identifier);
+    void setPlugin(InstrumentId id, int position, TQString identifier);
     void removePlugin(InstrumentId id, int position);
     void removeAllPlugins();
 
@@ -199,13 +199,13 @@ public:
 
     void setPluginBypass(InstrumentId, int position, bool bypass);
 
-    QStringList getPluginPrograms(InstrumentId, int);
-    QString getPluginProgram(InstrumentId, int);
-    QString getPluginProgram(InstrumentId, int, int, int);
-    unsigned long getPluginProgram(InstrumentId, int, QString);
-    void setPluginProgram(InstrumentId, int, QString);
+    TQStringList getPluginPrograms(InstrumentId, int);
+    TQString getPluginProgram(InstrumentId, int);
+    TQString getPluginProgram(InstrumentId, int, int, int);
+    unsigned long getPluginProgram(InstrumentId, int, TQString);
+    void setPluginProgram(InstrumentId, int, TQString);
 
-    QString configurePlugin(InstrumentId, int, QString, QString);
+    TQString configurePlugin(InstrumentId, int, TQString, TQString);
 
     void resetAllPlugins(bool discardEvents = false);
     void discardPluginEvents();
diff --git a/src/sound/DSSIPluginFactory.cpp b/src/sound/DSSIPluginFactory.cpp
index 8447450..42df247 100644
--- a/src/sound/DSSIPluginFactory.cpp
+++ b/src/sound/DSSIPluginFactory.cpp
@@ -52,7 +52,7 @@ DSSIPluginFactory::~DSSIPluginFactory()
 void
 DSSIPluginFactory::enumeratePlugins(MappedObjectPropertyList &list)
 {
-    for (std::vector<QString>::iterator i = m_identifiers.begin();
+    for (std::vector<TQString>::iterator i = m_identifiers.begin();
             i != m_identifiers.end(); ++i) {
 
         const DSSI_Descriptor *ddesc = getDSSIDescriptor(*i);
@@ -67,14 +67,14 @@ DSSIPluginFactory::enumeratePlugins(MappedObjectPropertyList &list)
 
         list.push_back(*i);
         list.push_back(descriptor->Name);
-        list.push_back(QString("%1").arg(descriptor->UniqueID));
+        list.push_back(TQString("%1").arg(descriptor->UniqueID));
         list.push_back(descriptor->Label);
         list.push_back(descriptor->Maker);
         list.push_back(descriptor->Copyright);
         list.push_back((ddesc->run_synth || ddesc->run_multiple_synths) ? "true" : "false");
         list.push_back(ddesc->run_multiple_synths ? "true" : "false");
         list.push_back(m_taxonomy[descriptor->UniqueID]);
-        list.push_back(QString("%1").arg(descriptor->PortCount));
+        list.push_back(TQString("%1").arg(descriptor->PortCount));
 
         for (unsigned long p = 0; p < descriptor->PortCount; ++p) {
 
@@ -90,13 +90,13 @@ DSSIPluginFactory::enumeratePlugins(MappedObjectPropertyList &list)
                 type |= PluginPort::Output;
             }
 
-            list.push_back(QString("%1").arg(p));
+            list.push_back(TQString("%1").arg(p));
             list.push_back(descriptor->PortNames[p]);
-            list.push_back(QString("%1").arg(type));
-            list.push_back(QString("%1").arg(getPortDisplayHint(descriptor, p)));
-            list.push_back(QString("%1").arg(getPortMinimum(descriptor, p)));
-            list.push_back(QString("%1").arg(getPortMaximum(descriptor, p)));
-            list.push_back(QString("%1").arg(getPortDefault(descriptor, p)));
+            list.push_back(TQString("%1").arg(type));
+            list.push_back(TQString("%1").arg(getPortDisplayHint(descriptor, p)));
+            list.push_back(TQString("%1").arg(getPortMinimum(descriptor, p)));
+            list.push_back(TQString("%1").arg(getPortMaximum(descriptor, p)));
+            list.push_back(TQString("%1").arg(getPortDefault(descriptor, p)));
         }
     }
 
@@ -105,7 +105,7 @@ DSSIPluginFactory::enumeratePlugins(MappedObjectPropertyList &list)
 
 
 void
-DSSIPluginFactory::populatePluginSlot(QString identifier, MappedPluginSlot &slot)
+DSSIPluginFactory::populatePluginSlot(TQString identifier, MappedPluginSlot &slot)
 {
     const LADSPA_Descriptor *descriptor = getLADSPADescriptor(identifier);
     if (!descriptor)
@@ -159,7 +159,7 @@ DSSIPluginFactory::populatePluginSlot(QString identifier, MappedPluginSlot &slot
 }
 
 RunnablePluginInstance *
-DSSIPluginFactory::instantiatePlugin(QString identifier,
+DSSIPluginFactory::instantiatePlugin(TQString identifier,
                                      int instrument,
                                      int position,
                                      unsigned int sampleRate,
@@ -185,9 +185,9 @@ DSSIPluginFactory::instantiatePlugin(QString identifier,
 
 
 const DSSI_Descriptor *
-DSSIPluginFactory::getDSSIDescriptor(QString identifier)
+DSSIPluginFactory::getDSSIDescriptor(TQString identifier)
 {
-    QString type, soname, label;
+    TQString type, soname, label;
     PluginIdentifier::parseIdentifier(identifier, type, soname, label);
 
     if (m_libraryHandles.find(soname) == m_libraryHandles.end()) {
@@ -223,7 +223,7 @@ DSSIPluginFactory::getDSSIDescriptor(QString identifier)
 }
 
 const LADSPA_Descriptor *
-DSSIPluginFactory::getLADSPADescriptor(QString identifier)
+DSSIPluginFactory::getLADSPADescriptor(TQString identifier)
 {
     const DSSI_Descriptor *dssiDescriptor = getDSSIDescriptor(identifier);
     if (dssiDescriptor)
@@ -233,10 +233,10 @@ DSSIPluginFactory::getLADSPADescriptor(QString identifier)
 }
 
 
-std::vector<QString>
+std::vector<TQString>
 DSSIPluginFactory::getPluginPath()
 {
-    std::vector<QString> pathList;
+    std::vector<TQString> pathList;
     std::string path;
 
     char *cpath = getenv("DSSI_PATH");
@@ -264,11 +264,11 @@ DSSIPluginFactory::getPluginPath()
 
 
 #ifdef HAVE_LIBLRDF
-std::vector<QString>
-DSSIPluginFactory::getLRDFPath(QString &baseUri)
+std::vector<TQString>
+DSSIPluginFactory::getLRDFPath(TQString &baseUri)
 {
-    std::vector<QString> pathList = getPluginPath();
-    std::vector<QString> lrdfPaths;
+    std::vector<TQString> pathList = getPluginPath();
+    std::vector<TQString> lrdfPaths;
 
     lrdfPaths.push_back("/usr/local/share/dssi/rdf");
     lrdfPaths.push_back("/usr/share/dssi/rdf");
@@ -276,7 +276,7 @@ DSSIPluginFactory::getLRDFPath(QString &baseUri)
     lrdfPaths.push_back("/usr/local/share/ladspa/rdf");
     lrdfPaths.push_back("/usr/share/ladspa/rdf");
 
-    for (std::vector<QString>::iterator i = pathList.begin();
+    for (std::vector<TQString>::iterator i = pathList.begin();
             i != pathList.end(); ++i) {
         lrdfPaths.push_back(*i + "/rdf");
     }
@@ -294,7 +294,7 @@ DSSIPluginFactory::getLRDFPath(QString &baseUri)
 
 
 void
-DSSIPluginFactory::discoverPlugins(QString soName)
+DSSIPluginFactory::discoverPlugins(TQString soName)
 {
     void *libraryHandle = dlopen(soName.data(), RTLD_LAZY);
 
@@ -328,7 +328,7 @@ DSSIPluginFactory::discoverPlugins(QString soName)
         char *def_uri = 0;
         lrdf_defaults *defs = 0;
 
-        QString category = m_taxonomy[ladspaDescriptor->UniqueID];
+        TQString category = m_taxonomy[ladspaDescriptor->UniqueID];
 
         if (category == "" && ladspaDescriptor->Name != 0) {
             std::string name = ladspaDescriptor->Name;
@@ -344,7 +344,7 @@ DSSIPluginFactory::discoverPlugins(QString soName)
         }
 
         //	std::cerr << "Plugin id is " << ladspaDescriptor->UniqueID
-        //		  << ", category is \"" << (category ? category : QString("(none)"))
+        //		  << ", category is \"" << (category ? category : TQString("(none)"))
         //		  << "\", name is " << ladspaDescriptor->Name
         //		  << ", label is " << ladspaDescriptor->Label
         //		  << std::endl;
@@ -376,7 +376,7 @@ DSSIPluginFactory::discoverPlugins(QString soName)
         }
 #endif // HAVE_LIBLRDF
 
-        QString identifier = PluginIdentifier::createIdentifier
+        TQString identifier = PluginIdentifier::createIdentifier
                              ("dssi", soName, ladspaDescriptor->Label);
         m_identifiers.push_back(identifier);
 
diff --git a/src/sound/DSSIPluginFactory.h b/src/sound/DSSIPluginFactory.h
index 8c1bd7c..9e64b75 100644
--- a/src/sound/DSSIPluginFactory.h
+++ b/src/sound/DSSIPluginFactory.h
@@ -39,9 +39,9 @@ public:
 
     virtual void enumeratePlugins(MappedObjectPropertyList &list);
 
-    virtual void populatePluginSlot(QString identifier, MappedPluginSlot &slot);
+    virtual void populatePluginSlot(TQString identifier, MappedPluginSlot &slot);
 
-    virtual RunnablePluginInstance *instantiatePlugin(QString identifier,
+    virtual RunnablePluginInstance *instantiatePlugin(TQString identifier,
                                                       int instrumentId,
                                                       int position,
                                                       unsigned int sampleRate,
@@ -52,16 +52,16 @@ protected:
     DSSIPluginFactory();
     friend class PluginFactory;
 
-    virtual std::vector<QString> getPluginPath();
+    virtual std::vector<TQString> getPluginPath();
 
 #ifdef HAVE_LIBLRDF
-    virtual std::vector<QString> getLRDFPath(QString &baseUri);
+    virtual std::vector<TQString> getLRDFPath(TQString &baseUri);
 #endif
 
-    virtual void discoverPlugins(QString soName);
+    virtual void discoverPlugins(TQString soName);
 
-    virtual const LADSPA_Descriptor *getLADSPADescriptor(QString identifier);
-    virtual const DSSI_Descriptor *getDSSIDescriptor(QString identifier);
+    virtual const LADSPA_Descriptor *getLADSPADescriptor(TQString identifier);
+    virtual const DSSI_Descriptor *getDSSIDescriptor(TQString identifier);
 };
 
 }
diff --git a/src/sound/DSSIPluginInstance.cpp b/src/sound/DSSIPluginInstance.cpp
index 2ceb0df..30b9256 100644
--- a/src/sound/DSSIPluginInstance.cpp
+++ b/src/sound/DSSIPluginInstance.cpp
@@ -45,7 +45,7 @@ Scavenger<ScavengerArrayWrapper<snd_seq_event_t *> > DSSIPluginInstance::m_buffe
 
 DSSIPluginInstance::DSSIPluginInstance(PluginFactory *factory,
                                        InstrumentId instrument,
-                                       QString identifier,
+                                       TQString identifier,
                                        int position,
                                        unsigned long sampleRate,
                                        size_t blockSize,
@@ -101,7 +101,7 @@ DSSIPluginInstance::DSSIPluginInstance(PluginFactory *factory,
 
 DSSIPluginInstance::DSSIPluginInstance(PluginFactory *factory,
                                        InstrumentId instrument,
-                                       QString identifier,
+                                       TQString identifier,
                                        int position,
                                        unsigned long sampleRate,
                                        size_t blockSize,
@@ -451,7 +451,7 @@ DSSIPluginInstance::checkProgramCache()
         ProgramDescriptor d;
         d.bank = programDescriptor->Bank;
         d.program = programDescriptor->Program;
-        d.name = QString("%1. %2").arg(index).arg(programDescriptor->Name);
+        d.name = TQString("%1. %2").arg(index).arg(programDescriptor->Name);
         m_cachedPrograms.push_back(d);
     }
 
@@ -470,11 +470,11 @@ DSSIPluginInstance::getPrograms()
 #endif
 
     if (!m_descriptor)
-        return QStringList();
+        return TQStringList();
 
     checkProgramCache();
 
-    QStringList programs;
+    TQStringList programs;
 
     for (std::vector<ProgramDescriptor>::iterator i = m_cachedPrograms.begin();
             i != m_cachedPrograms.end(); ++i) {
@@ -492,7 +492,7 @@ DSSIPluginInstance::getProgram(int bank, int program)
 #endif
 
     if (!m_descriptor)
-        return QString();
+        return TQString();
 
     checkProgramCache();
 
@@ -502,11 +502,11 @@ DSSIPluginInstance::getProgram(int bank, int program)
             return i->name;
     }
 
-    return QString();
+    return TQString();
 }
 
 unsigned long
-DSSIPluginInstance::getProgram(QString name)
+DSSIPluginInstance::getProgram(TQString name)
 {
 #ifdef DEBUG_DSSI
     std::cerr << "DSSIPluginInstance::getProgram(" << name << ")" << std::endl;
@@ -538,13 +538,13 @@ DSSIPluginInstance::getCurrentProgram()
 }
 
 void
-DSSIPluginInstance::selectProgram(QString program)
+DSSIPluginInstance::selectProgram(TQString program)
 {
     selectProgramAux(program, true);
 }
 
 void
-DSSIPluginInstance::selectProgramAux(QString program, bool backupPortValues)
+DSSIPluginInstance::selectProgramAux(TQString program, bool backupPortValues)
 {
 #ifdef DEBUG_DSSI
     std::cerr << "DSSIPluginInstance[" << this << "]::selectProgram(" << program << ", " << backupPortValues << ")" << std::endl;
@@ -766,18 +766,18 @@ DSSIPluginInstance::getPortValue(unsigned int portNumber)
 }
 
 QString
-DSSIPluginInstance::configure(QString key,
-                              QString value)
+DSSIPluginInstance::configure(TQString key,
+                              TQString value)
 {
     if (!m_descriptor || !m_descriptor->configure)
-        return QString();
+        return TQString();
 
     if (key == PluginIdentifier::RESERVED_PROJECT_DIRECTORY_KEY) {
 #ifdef DSSI_PROJECT_DIRECTORY_KEY
         key = DSSI_PROJECT_DIRECTORY_KEY;
 #else
 
-        return QString();
+        return TQString();
 #endif
 
     }
@@ -791,7 +791,7 @@ DSSIPluginInstance::configure(QString key,
 
     m_programCacheValid = false;
 
-    QString qm;
+    TQString qm;
 
     // Ignore return values from reserved key configuration calls such
     // as project directory
@@ -804,7 +804,7 @@ DSSIPluginInstance::configure(QString key,
 
     if (message) {
         if (m_descriptor->LADSPA_Plugin && m_descriptor->LADSPA_Plugin->Label) {
-            qm = QString(m_descriptor->LADSPA_Plugin->Label) + ": ";
+            qm = TQString(m_descriptor->LADSPA_Plugin->Label) + ": ";
         }
         qm = qm + message;
         free(message);
diff --git a/src/sound/DSSIPluginInstance.h b/src/sound/DSSIPluginInstance.h
index eca6327..bf1a197 100644
--- a/src/sound/DSSIPluginInstance.h
+++ b/src/sound/DSSIPluginInstance.h
@@ -25,7 +25,7 @@
 #include <vector>
 #include <set>
 #include <map>
-#include <qstring.h>
+#include <tqstring.h>
 #include "Instrument.h"
 
 #ifdef HAVE_DSSI
@@ -47,14 +47,14 @@ public:
     virtual bool isOK() const { return m_instanceHandle != 0; }
 
     InstrumentId getInstrument() const { return m_instrument; }
-    virtual QString getIdentifier() const { return m_identifier; }
+    virtual TQString getIdentifier() const { return m_identifier; }
     int getPosition() const { return m_position; }
 
     virtual void run(const RealTime &);
 
     virtual void setPortValue(unsigned int portNumber, float value);
     virtual float getPortValue(unsigned int portNumber);
-    virtual QString configure(QString key, QString value);
+    virtual TQString configure(TQString key, TQString value);
     virtual void sendEvent(const RealTime &eventTime,
                            const void *event);
 
@@ -64,11 +64,11 @@ public:
     virtual sample_t **getAudioInputBuffers() { return m_inputBuffers; }
     virtual sample_t **getAudioOutputBuffers() { return m_outputBuffers; }
 
-    virtual QStringList getPrograms();
-    virtual QString getCurrentProgram();
-    virtual QString getProgram(int bank, int program);
-    virtual unsigned long getProgram(QString name);
-    virtual void selectProgram(QString program);
+    virtual TQStringList getPrograms();
+    virtual TQString getCurrentProgram();
+    virtual TQString getProgram(int bank, int program);
+    virtual unsigned long getProgram(TQString name);
+    virtual void selectProgram(TQString program);
 
     virtual bool isBypassed() const { return m_bypassed; }
     virtual void setBypassed(bool bypassed) { m_bypassed = bypassed; }
@@ -90,7 +90,7 @@ protected:
     // 
     DSSIPluginInstance(PluginFactory *factory,
                        InstrumentId instrument,
-                       QString identifier,
+                       TQString identifier,
                        int position,
                        unsigned long sampleRate,
                        size_t blockSize,
@@ -101,7 +101,7 @@ protected:
     // 
     DSSIPluginInstance(PluginFactory *factory,
                        InstrumentId instrument,
-                       QString identifier,
+                       TQString identifier,
                        int position,
                        unsigned long sampleRate,
                        size_t blockSize,
@@ -118,7 +118,7 @@ protected:
 
     bool handleController(snd_seq_event_t *ev);
     void setPortValueFromController(unsigned int portNumber, int controlValue);
-    void selectProgramAux(QString program, bool backupPortValues);
+    void selectProgramAux(TQString program, bool backupPortValues);
     void checkProgramCache();
 
     void initialiseGroupMembership();
@@ -150,7 +150,7 @@ protected:
     struct ProgramDescriptor {
         int bank;
         int program;
-        QString name;
+        TQString name;
     };
     std::vector<ProgramDescriptor> m_cachedPrograms;
     bool m_programCacheValid;
@@ -170,14 +170,14 @@ protected:
     bool                      m_runSinceReset;
     
     bool                      m_bypassed;
-    QString                   m_program;
+    TQString                   m_program;
     bool                      m_grouped;
     RealTime                  m_lastRunTime;
 
     pthread_mutex_t           m_processLock;
 
     typedef std::set<DSSIPluginInstance *> PluginSet;
-    typedef std::map<QString, PluginSet> GroupMap;
+    typedef std::map<TQString, PluginSet> GroupMap;
     static GroupMap m_groupMap;
     static snd_seq_event_t **m_groupLocalEventBuffers;
     static size_t m_groupLocalEventBufferCount;
diff --git a/src/sound/DummyDriver.h b/src/sound/DummyDriver.h
index 838e7bd..d60c7c0 100644
--- a/src/sound/DummyDriver.h
+++ b/src/sound/DummyDriver.h
@@ -62,7 +62,7 @@ public:
     //
     virtual bool record(RecordStatus /*recordStatus*/,
                         const std::vector<InstrumentId> */*armedInstruments = 0*/,
-                        const std::vector<QString> */*audioFileNames = 0*/)
+                        const std::vector<TQString> */*audioFileNames = 0*/)
         { return false; }
 
     // Process anything that's pending
@@ -80,7 +80,7 @@ public:
     // Plugin instance management
     //
     virtual void setPluginInstance(InstrumentId /*id*/,
-                                   QString /*pluginIdent*/,
+                                   TQString /*pluginIdent*/,
                                    int /*position*/) { }
 
     virtual void removePluginInstance(InstrumentId /*id*/,
@@ -101,29 +101,29 @@ public:
                                          int /*position*/,
                                          bool /*value*/) { }
 
-    virtual QStringList getPluginInstancePrograms(InstrumentId ,
-                                                  int ) { return QStringList(); }
+    virtual TQStringList getPluginInstancePrograms(InstrumentId ,
+                                                  int ) { return TQStringList(); }
 
-    virtual QString getPluginInstanceProgram(InstrumentId,
-                                             int ) { return QString(); }
+    virtual TQString getPluginInstanceProgram(InstrumentId,
+                                             int ) { return TQString(); }
 
-    virtual QString getPluginInstanceProgram(InstrumentId,
+    virtual TQString getPluginInstanceProgram(InstrumentId,
                                              int,
                                              int,
-                                             int) { return QString(); }
+                                             int) { return TQString(); }
 
     virtual unsigned long getPluginInstanceProgram(InstrumentId,
                                                    int ,
-                                                   QString) { return 0; }
+                                                   TQString) { return 0; }
     
     virtual void setPluginInstanceProgram(InstrumentId,
                                           int ,
-                                          QString ) { }
+                                          TQString ) { }
 
-    virtual QString configurePlugin(InstrumentId,
+    virtual TQString configurePlugin(InstrumentId,
                                     int,
-                                    QString ,
-                                    QString ) { return QString(); }
+                                    TQString ,
+                                    TQString ) { return TQString(); }
 
     virtual void setAudioBussLevels(int ,
                                     float ,
diff --git a/src/sound/JackDriver.cpp b/src/sound/JackDriver.cpp
index 24eb6fe..b9a7205 100644
--- a/src/sound/JackDriver.cpp
+++ b/src/sound/JackDriver.cpp
@@ -2318,7 +2318,7 @@ JackDriver::releaseAudioQueueLocks()
 
 
 void
-JackDriver::setPluginInstance(InstrumentId id, QString identifier,
+JackDriver::setPluginInstance(InstrumentId id, TQString identifier,
                               int position)
 {
     if (m_instrumentMixer) {
@@ -2373,7 +2373,7 @@ JackDriver::getPluginInstancePrograms(InstrumentId id, int position)
 {
     if (m_instrumentMixer)
         return m_instrumentMixer->getPluginPrograms(id, position);
-    return QStringList();
+    return TQStringList();
 }
 
 QString
@@ -2381,7 +2381,7 @@ JackDriver::getPluginInstanceProgram(InstrumentId id, int position)
 {
     if (m_instrumentMixer)
         return m_instrumentMixer->getPluginProgram(id, position);
-    return QString();
+    return TQString();
 }
 
 QString
@@ -2390,11 +2390,11 @@ JackDriver::getPluginInstanceProgram(InstrumentId id, int position,
 {
     if (m_instrumentMixer)
         return m_instrumentMixer->getPluginProgram(id, position, bank, program);
-    return QString();
+    return TQString();
 }
 
 unsigned long
-JackDriver::getPluginInstanceProgram(InstrumentId id, int position, QString name)
+JackDriver::getPluginInstanceProgram(InstrumentId id, int position, TQString name)
 {
     if (m_instrumentMixer)
         return m_instrumentMixer->getPluginProgram(id, position, name);
@@ -2402,18 +2402,18 @@ JackDriver::getPluginInstanceProgram(InstrumentId id, int position, QString name
 }
 
 void
-JackDriver::setPluginInstanceProgram(InstrumentId id, int position, QString program)
+JackDriver::setPluginInstanceProgram(InstrumentId id, int position, TQString program)
 {
     if (m_instrumentMixer)
         m_instrumentMixer->setPluginProgram(id, position, program);
 }
 
 QString
-JackDriver::configurePlugin(InstrumentId id, int position, QString key, QString value)
+JackDriver::configurePlugin(InstrumentId id, int position, TQString key, TQString value)
 {
     if (m_instrumentMixer)
         return m_instrumentMixer->configurePlugin(id, position, key, value);
-    return QString();
+    return TQString();
 }
 
 RunnablePluginInstance *
diff --git a/src/sound/JackDriver.h b/src/sound/JackDriver.h
index b46080d..4d2c42e 100644
--- a/src/sound/JackDriver.h
+++ b/src/sound/JackDriver.h
@@ -31,7 +31,7 @@
 #include "Instrument.h"
 #include "RealTime.h"
 #include "ExternalTransport.h"
-#include <qstringlist.h>
+#include <tqstringlist.h>
 
 namespace Rosegarden
 {
@@ -77,7 +77,7 @@ public:
     // Plugin instance management
     //
     virtual void setPluginInstance(InstrumentId id,
-                                   QString identifier,
+                                   TQString identifier,
                                    int position);
 
     virtual void removePluginInstance(InstrumentId id, int position);
@@ -99,28 +99,28 @@ public:
                                          int position,
                                          bool value);
 
-    virtual QStringList getPluginInstancePrograms(InstrumentId id,
+    virtual TQStringList getPluginInstancePrograms(InstrumentId id,
                                                   int position); 
 
-    virtual QString getPluginInstanceProgram(InstrumentId id,
+    virtual TQString getPluginInstanceProgram(InstrumentId id,
                                              int position); 
   
-    virtual QString getPluginInstanceProgram(InstrumentId id,
+    virtual TQString getPluginInstanceProgram(InstrumentId id,
                                              int position,
                                              int bank,
                                              int program); 
   
     virtual unsigned long getPluginInstanceProgram(InstrumentId id,
                                                    int position,
-                                                   QString name);
+                                                   TQString name);
   
     virtual void setPluginInstanceProgram(InstrumentId id,
                                           int position,
-                                          QString program);
+                                          TQString program);
 
-    virtual QString configurePlugin(InstrumentId id,
+    virtual TQString configurePlugin(InstrumentId id,
                                     int position, 
-                                    QString key, QString value);
+                                    TQString key, TQString value);
 
     virtual RunnablePluginInstance *getSynthPlugin(InstrumentId id);
 
diff --git a/src/sound/LADSPAPluginFactory.cpp b/src/sound/LADSPAPluginFactory.cpp
index 2a4a4ea..5ec25ef 100644
--- a/src/sound/LADSPAPluginFactory.cpp
+++ b/src/sound/LADSPAPluginFactory.cpp
@@ -26,7 +26,7 @@
 #ifdef HAVE_LADSPA
 
 #include <dlfcn.h>
-#include <qdir.h>
+#include <tqdir.h>
 #include <cmath>
 
 #include "AudioPluginInstance.h"
@@ -58,7 +58,7 @@ LADSPAPluginFactory::~LADSPAPluginFactory()
     unloadUnusedLibraries();
 }
 
-const std::vector<QString> &
+const std::vector<TQString> &
 LADSPAPluginFactory::getPluginIdentifiers() const
 {
     return m_identifiers;
@@ -67,7 +67,7 @@ LADSPAPluginFactory::getPluginIdentifiers() const
 void
 LADSPAPluginFactory::enumeratePlugins(MappedObjectPropertyList &list)
 {
-    for (std::vector<QString>::iterator i = m_identifiers.begin();
+    for (std::vector<TQString>::iterator i = m_identifiers.begin();
             i != m_identifiers.end(); ++i) {
 
         const LADSPA_Descriptor *descriptor = getLADSPADescriptor(*i);
@@ -81,7 +81,7 @@ LADSPAPluginFactory::enumeratePlugins(MappedObjectPropertyList &list)
 
         list.push_back(*i);
         list.push_back(descriptor->Name);
-        list.push_back(QString("%1").arg(descriptor->UniqueID));
+        list.push_back(TQString("%1").arg(descriptor->UniqueID));
         list.push_back(descriptor->Label);
         list.push_back(descriptor->Maker);
         list.push_back(descriptor->Copyright);
@@ -104,7 +104,7 @@ LADSPAPluginFactory::enumeratePlugins(MappedObjectPropertyList &list)
 
         }
 
-        list.push_back(QString("%1").arg(descriptor->PortCount));
+        list.push_back(TQString("%1").arg(descriptor->PortCount));
 
         for (unsigned long p = 0; p < descriptor->PortCount; ++p) {
 
@@ -120,13 +120,13 @@ LADSPAPluginFactory::enumeratePlugins(MappedObjectPropertyList &list)
                 type |= PluginPort::Output;
             }
 
-            list.push_back(QString("%1").arg(p));
+            list.push_back(TQString("%1").arg(p));
             list.push_back(descriptor->PortNames[p]);
-            list.push_back(QString("%1").arg(type));
-            list.push_back(QString("%1").arg(getPortDisplayHint(descriptor, p)));
-            list.push_back(QString("%1").arg(getPortMinimum(descriptor, p)));
-            list.push_back(QString("%1").arg(getPortMaximum(descriptor, p)));
-            list.push_back(QString("%1").arg(getPortDefault(descriptor, p)));
+            list.push_back(TQString("%1").arg(type));
+            list.push_back(TQString("%1").arg(getPortDisplayHint(descriptor, p)));
+            list.push_back(TQString("%1").arg(getPortMinimum(descriptor, p)));
+            list.push_back(TQString("%1").arg(getPortMaximum(descriptor, p)));
+            list.push_back(TQString("%1").arg(getPortDefault(descriptor, p)));
         }
     }
 
@@ -135,7 +135,7 @@ LADSPAPluginFactory::enumeratePlugins(MappedObjectPropertyList &list)
 
 
 void
-LADSPAPluginFactory::populatePluginSlot(QString identifier, MappedPluginSlot &slot)
+LADSPAPluginFactory::populatePluginSlot(TQString identifier, MappedPluginSlot &slot)
 {
     const LADSPA_Descriptor *descriptor = getLADSPADescriptor(identifier);
 
@@ -407,7 +407,7 @@ LADSPAPluginFactory::getPortDisplayHint(const LADSPA_Descriptor *descriptor, int
 
 
 RunnablePluginInstance *
-LADSPAPluginFactory::instantiatePlugin(QString identifier,
+LADSPAPluginFactory::instantiatePlugin(TQString identifier,
                                        int instrument,
                                        int position,
                                        unsigned int sampleRate,
@@ -433,7 +433,7 @@ LADSPAPluginFactory::instantiatePlugin(QString identifier,
 
 void
 LADSPAPluginFactory::releasePlugin(RunnablePluginInstance *instance,
-                                   QString identifier)
+                                   TQString identifier)
 {
     if (m_instances.find(instance) == m_instances.end()) {
         std::cerr << "WARNING: LADSPAPluginFactory::releasePlugin: Not one of mine!"
@@ -441,7 +441,7 @@ LADSPAPluginFactory::releasePlugin(RunnablePluginInstance *instance,
         return ;
     }
 
-    QString type, soname, label;
+    TQString type, soname, label;
     PluginIdentifier::parseIdentifier(identifier, type, soname, label);
 
     m_instances.erase(m_instances.find(instance));
@@ -451,7 +451,7 @@ LADSPAPluginFactory::releasePlugin(RunnablePluginInstance *instance,
     for (std::set
                 <RunnablePluginInstance *>::iterator ii = m_instances.begin();
                 ii != m_instances.end(); ++ii) {
-            QString itype, isoname, ilabel;
+            TQString itype, isoname, ilabel;
             PluginIdentifier::parseIdentifier((*ii)->getIdentifier(), itype, isoname, ilabel);
             if (isoname == soname) {
                 //	    std::cerr << "LADSPAPluginFactory::releasePlugin: dll " << soname << " is still in use for plugin " << ilabel << std::endl;
@@ -467,9 +467,9 @@ LADSPAPluginFactory::releasePlugin(RunnablePluginInstance *instance,
 }
 
 const LADSPA_Descriptor *
-LADSPAPluginFactory::getLADSPADescriptor(QString identifier)
+LADSPAPluginFactory::getLADSPADescriptor(TQString identifier)
 {
-    QString type, soname, label;
+    TQString type, soname, label;
     PluginIdentifier::parseIdentifier(identifier, type, soname, label);
 
     if (m_libraryHandles.find(soname) == m_libraryHandles.end()) {
@@ -505,7 +505,7 @@ LADSPAPluginFactory::getLADSPADescriptor(QString identifier)
 }
 
 void
-LADSPAPluginFactory::loadLibrary(QString soName)
+LADSPAPluginFactory::loadLibrary(TQString soName)
 {
     void *libraryHandle = dlopen(soName.data(), RTLD_NOW);
     if (libraryHandle)
@@ -513,7 +513,7 @@ LADSPAPluginFactory::loadLibrary(QString soName)
 }
 
 void
-LADSPAPluginFactory::unloadLibrary(QString soName)
+LADSPAPluginFactory::unloadLibrary(TQString soName)
 {
     LibraryHandleMap::iterator li = m_libraryHandles.find(soName);
     if (li != m_libraryHandles.end()) {
@@ -526,7 +526,7 @@ LADSPAPluginFactory::unloadLibrary(QString soName)
 void
 LADSPAPluginFactory::unloadUnusedLibraries()
 {
-    std::vector<QString> toUnload;
+    std::vector<TQString> toUnload;
 
     for (LibraryHandleMap::iterator i = m_libraryHandles.begin();
             i != m_libraryHandles.end(); ++i) {
@@ -537,7 +537,7 @@ LADSPAPluginFactory::unloadUnusedLibraries()
                     <RunnablePluginInstance *>::iterator ii = m_instances.begin();
                     ii != m_instances.end(); ++ii) {
 
-                QString itype, isoname, ilabel;
+                TQString itype, isoname, ilabel;
                 PluginIdentifier::parseIdentifier((*ii)->getIdentifier(), itype, isoname, ilabel);
                 if (isoname == i->first) {
                     stillInUse = true;
@@ -549,7 +549,7 @@ LADSPAPluginFactory::unloadUnusedLibraries()
             toUnload.push_back(i->first);
     }
 
-    for (std::vector<QString>::iterator i = toUnload.begin();
+    for (std::vector<TQString>::iterator i = toUnload.begin();
             i != toUnload.end(); ++i) {
         unloadLibrary(*i);
     }
@@ -564,10 +564,10 @@ LADSPAPluginFactory::unloadUnusedLibraries()
 // I hope someday to forget all this.
 
 
-std::vector<QString>
+std::vector<TQString>
 LADSPAPluginFactory::getPluginPath()
 {
-    std::vector<QString> pathList;
+    std::vector<TQString> pathList;
     std::string path;
 
     char *cpath = getenv("LADSPA_PATH");
@@ -595,16 +595,16 @@ LADSPAPluginFactory::getPluginPath()
 
 
 #ifdef HAVE_LIBLRDF
-std::vector<QString>
-LADSPAPluginFactory::getLRDFPath(QString &baseUri)
+std::vector<TQString>
+LADSPAPluginFactory::getLRDFPath(TQString &baseUri)
 {
-    std::vector<QString> pathList = getPluginPath();
-    std::vector<QString> lrdfPaths;
+    std::vector<TQString> pathList = getPluginPath();
+    std::vector<TQString> lrdfPaths;
 
     lrdfPaths.push_back("/usr/local/share/ladspa/rdf");
     lrdfPaths.push_back("/usr/share/ladspa/rdf");
 
-    for (std::vector<QString>::iterator i = pathList.begin();
+    for (std::vector<TQString>::iterator i = pathList.begin();
             i != pathList.end(); ++i) {
         lrdfPaths.push_back(*i + "/rdf");
     }
@@ -617,11 +617,11 @@ LADSPAPluginFactory::getLRDFPath(QString &baseUri)
 void
 LADSPAPluginFactory::discoverPlugins()
 {
-    std::vector<QString> pathList = getPluginPath();
+    std::vector<TQString> pathList = getPluginPath();
 
     std::cerr << "LADSPAPluginFactory::discoverPlugins - "
     	      << "discovering plugins; path is ";
-    for (std::vector<QString>::iterator i = pathList.begin();
+    for (std::vector<TQString>::iterator i = pathList.begin();
             i != pathList.end(); ++i) {
         std::cerr << "[" << *i << "] ";
     }
@@ -636,15 +636,15 @@ LADSPAPluginFactory::discoverPlugins()
     //
     lrdf_init();
 
-    QString baseUri;
-    std::vector<QString> lrdfPaths = getLRDFPath(baseUri);
+    TQString baseUri;
+    std::vector<TQString> lrdfPaths = getLRDFPath(baseUri);
 
     bool haveSomething = false;
 
     for (size_t i = 0; i < lrdfPaths.size(); ++i) {
-        QDir dir(lrdfPaths[i], "*.rdf;*.rdfs");
+        TQDir dir(lrdfPaths[i], "*.rdf;*.rdfs");
         for (unsigned int j = 0; j < dir.count(); ++j) {
-            if (!lrdf_read_file(QString("file:" + lrdfPaths[i] + "/" + dir[j]).data())) {
+            if (!lrdf_read_file(TQString("file:" + lrdfPaths[i] + "/" + dir[j]).data())) {
                 //		std::cerr << "LADSPAPluginFactory: read RDF file " << (lrdfPaths[i] + "/" + dir[j]) << std::endl;
                 haveSomething = true;
             }
@@ -658,13 +658,13 @@ LADSPAPluginFactory::discoverPlugins()
 
     generateFallbackCategories();
 
-    for (std::vector<QString>::iterator i = pathList.begin();
+    for (std::vector<TQString>::iterator i = pathList.begin();
             i != pathList.end(); ++i) {
 
-        QDir pluginDir(*i, "*.so");
+        TQDir pluginDir(*i, "*.so");
 
         for (unsigned int j = 0; j < pluginDir.count(); ++j) {
-            discoverPlugins(QString("%1/%2").arg(*i).arg(pluginDir[j]));
+            discoverPlugins(TQString("%1/%2").arg(*i).arg(pluginDir[j]));
         }
     }
 
@@ -678,7 +678,7 @@ LADSPAPluginFactory::discoverPlugins()
 }
 
 void
-LADSPAPluginFactory::discoverPlugins(QString soName)
+LADSPAPluginFactory::discoverPlugins(TQString soName)
 {
     void *libraryHandle = dlopen(soName.data(), RTLD_LAZY);
 
@@ -705,7 +705,7 @@ LADSPAPluginFactory::discoverPlugins(QString soName)
         char * def_uri = 0;
         lrdf_defaults *defs = 0;
 
-        QString category = m_taxonomy[descriptor->UniqueID];
+        TQString category = m_taxonomy[descriptor->UniqueID];
 
         if (category == "" && descriptor->Name != 0) {
             std::string name = descriptor->Name;
@@ -717,7 +717,7 @@ LADSPAPluginFactory::discoverPlugins(QString soName)
         }
 
 //        	std::cerr << "Plugin id is " << descriptor->UniqueID
-//        		  << ", category is \"" << (category ? category : QString("(none)"))
+//        		  << ", category is \"" << (category ? category : TQString("(none)"))
 //        		  << "\", name is " << descriptor->Name
 //        		  << ", label is " << descriptor->Label
 //        		  << std::endl;
@@ -749,7 +749,7 @@ LADSPAPluginFactory::discoverPlugins(QString soName)
         }
 #endif // HAVE_LIBLRDF
 
-        QString identifier = PluginIdentifier::createIdentifier
+        TQString identifier = PluginIdentifier::createIdentifier
                              ("ladspa", soName, descriptor->Label);
 //	std::cerr << "Added plugin identifier " << identifier << std::endl;
         m_identifiers.push_back(identifier);
@@ -766,12 +766,12 @@ LADSPAPluginFactory::discoverPlugins(QString soName)
 void
 LADSPAPluginFactory::generateFallbackCategories()
 {
-    std::vector<QString> pluginPath = getPluginPath();
-    std::vector<QString> path;
+    std::vector<TQString> pluginPath = getPluginPath();
+    std::vector<TQString> path;
 
     for (size_t i = 0; i < pluginPath.size(); ++i) {
         if (pluginPath[i].contains("/lib/")) {
-            QString p(pluginPath[i]);
+            TQString p(pluginPath[i]);
             p.replace("/lib/", "/share/");
             path.push_back(p);
             //	    std::cerr << "LADSPAPluginFactory::generateFallbackCategories: path element " << p << std::endl;
@@ -782,25 +782,25 @@ LADSPAPluginFactory::generateFallbackCategories()
 
     for (size_t i = 0; i < path.size(); ++i) {
 
-        QDir dir(path[i], "*.cat");
+        TQDir dir(path[i], "*.cat");
 
 //        	std::cerr << "LADSPAPluginFactory::generateFallbackCategories: directory " << path[i] << " has " << dir.count() << " .cat files" << std::endl;
         for (unsigned int j = 0; j < dir.count(); ++j) {
 
-            QFile file(path[i] + "/" + dir[j]);
+            TQFile file(path[i] + "/" + dir[j]);
 
             //	    std::cerr << "LADSPAPluginFactory::generateFallbackCategories: about to open " << (path[i] + "/" + dir[j]) << std::endl;
 
             if (file.open(IO_ReadOnly)) {
                 //		    std::cerr << "...opened" << std::endl;
-                QTextStream stream(&file);
-                QString line;
+                TQTextStream stream(&file);
+                TQString line;
 
                 while (!stream.eof()) {
                     line = stream.readLine();
                     //		    std::cerr << "line is: \"" << line << "\"" << std::endl;
-                    QString id = line.section("::", 0, 0);
-                    QString cat = line.section("::", 1, 1);
+                    TQString id = line.section("::", 0, 0);
+                    TQString cat = line.section("::", 1, 1);
                     m_fallbackCategories[id] = cat;
 //                    		    std::cerr << "set id \"" << id << "\" to cat \"" << cat << "\"" << std::endl;
                 }
@@ -810,7 +810,7 @@ LADSPAPluginFactory::generateFallbackCategories()
 }
 
 void
-LADSPAPluginFactory::generateTaxonomy(QString uri, QString base)
+LADSPAPluginFactory::generateTaxonomy(TQString uri, TQString base)
 {
 #ifdef HAVE_LIBLRDF
     lrdf_uris *uris = lrdf_get_instances(uri.data());
diff --git a/src/sound/LADSPAPluginFactory.h b/src/sound/LADSPAPluginFactory.h
index a5ec368..8bcb80c 100644
--- a/src/sound/LADSPAPluginFactory.h
+++ b/src/sound/LADSPAPluginFactory.h
@@ -30,7 +30,7 @@
 #include <vector>
 #include <map>
 #include <set>
-#include <qstring.h>
+#include <tqstring.h>
 
 namespace Rosegarden
 {
@@ -44,13 +44,13 @@ public:
 
     virtual void discoverPlugins();
 
-    virtual const std::vector<QString> &getPluginIdentifiers() const;
+    virtual const std::vector<TQString> &getPluginIdentifiers() const;
 
     virtual void enumeratePlugins(MappedObjectPropertyList &list);
 
-    virtual void populatePluginSlot(QString identifier, MappedPluginSlot &slot);
+    virtual void populatePluginSlot(TQString identifier, MappedPluginSlot &slot);
 
-    virtual RunnablePluginInstance *instantiatePlugin(QString identifier,
+    virtual RunnablePluginInstance *instantiatePlugin(TQString identifier,
                                                       int instrumentId,
                                                       int position,
                                                       unsigned int sampleRate,
@@ -66,33 +66,33 @@ protected:
     LADSPAPluginFactory();
     friend class PluginFactory;
 
-    virtual std::vector<QString> getPluginPath();
+    virtual std::vector<TQString> getPluginPath();
 
 #ifdef HAVE_LIBLRDF
-    virtual std::vector<QString> getLRDFPath(QString &baseUri);
+    virtual std::vector<TQString> getLRDFPath(TQString &baseUri);
 #endif
 
-    virtual void discoverPlugins(QString soName);
-    virtual void generateTaxonomy(QString uri, QString base);
+    virtual void discoverPlugins(TQString soName);
+    virtual void generateTaxonomy(TQString uri, TQString base);
     virtual void generateFallbackCategories();
 
-    virtual void releasePlugin(RunnablePluginInstance *, QString);
+    virtual void releasePlugin(RunnablePluginInstance *, TQString);
 
-    virtual const LADSPA_Descriptor *getLADSPADescriptor(QString identifier);
+    virtual const LADSPA_Descriptor *getLADSPADescriptor(TQString identifier);
 
-    void loadLibrary(QString soName);
-    void unloadLibrary(QString soName);
+    void loadLibrary(TQString soName);
+    void unloadLibrary(TQString soName);
     void unloadUnusedLibraries();
 
-    std::vector<QString> m_identifiers;
+    std::vector<TQString> m_identifiers;
 
-    std::map<unsigned long, QString> m_taxonomy;
-    std::map<QString, QString> m_fallbackCategories;
+    std::map<unsigned long, TQString> m_taxonomy;
+    std::map<TQString, TQString> m_fallbackCategories;
     std::map<unsigned long, std::map<int, float> > m_portDefaults;
 
     std::set<RunnablePluginInstance *> m_instances;
 
-    typedef std::map<QString, void *> LibraryHandleMap;
+    typedef std::map<TQString, void *> LibraryHandleMap;
     LibraryHandleMap m_libraryHandles;
 };
 
diff --git a/src/sound/LADSPAPluginInstance.cpp b/src/sound/LADSPAPluginInstance.cpp
index e2b8890..fcf35a7 100644
--- a/src/sound/LADSPAPluginInstance.cpp
+++ b/src/sound/LADSPAPluginInstance.cpp
@@ -34,7 +34,7 @@ namespace Rosegarden
 
 LADSPAPluginInstance::LADSPAPluginInstance(PluginFactory *factory,
         InstrumentId instrument,
-        QString identifier,
+        TQString identifier,
         int position,
         unsigned long sampleRate,
         size_t blockSize,
@@ -74,7 +74,7 @@ LADSPAPluginInstance::LADSPAPluginInstance(PluginFactory *factory,
 
 LADSPAPluginInstance::LADSPAPluginInstance(PluginFactory *factory,
         InstrumentId instrument,
-        QString identifier,
+        TQString identifier,
         int position,
         unsigned long sampleRate,
         size_t blockSize,
diff --git a/src/sound/LADSPAPluginInstance.h b/src/sound/LADSPAPluginInstance.h
index 9654cfb..54c8cf5 100644
--- a/src/sound/LADSPAPluginInstance.h
+++ b/src/sound/LADSPAPluginInstance.h
@@ -21,7 +21,7 @@
 
 #include <vector>
 #include <set>
-#include <qstring.h>
+#include <tqstring.h>
 #include "Instrument.h"
 
 #ifndef _LADSPAPLUGININSTANCE_H_
@@ -47,7 +47,7 @@ public:
     virtual bool isOK() const { return m_instanceHandles.size() != 0; }
 
     InstrumentId getInstrument() const { return m_instrument; }
-    virtual QString getIdentifier() const { return m_identifier; }
+    virtual TQString getIdentifier() const { return m_identifier; }
     int getPosition() const { return m_position; }
 
     virtual void run(const RealTime &rt);
@@ -77,7 +77,7 @@ protected:
     // 
     LADSPAPluginInstance(PluginFactory *factory,
                          InstrumentId instrument,
-                         QString identifier,
+                         TQString identifier,
                          int position,
                          unsigned long sampleRate,
                          size_t blockSize,
@@ -88,7 +88,7 @@ protected:
     // 
     LADSPAPluginInstance(PluginFactory *factory,
                          InstrumentId instrument,
-                         QString identifier,
+                         TQString identifier,
                          int position,
                          unsigned long sampleRate,
                          size_t blockSize,
diff --git a/src/sound/MappedCommon.h b/src/sound/MappedCommon.h
index 5ef5487..0a793bc 100644
--- a/src/sound/MappedCommon.h
+++ b/src/sound/MappedCommon.h
@@ -28,17 +28,17 @@
 //
 #include <vector>
 
-#include <qstring.h>
-#include <qdatastream.h>
+#include <tqstring.h>
+#include <tqdatastream.h>
 
 namespace Rosegarden
 {
 
 typedef int          MappedObjectId;
-typedef QString      MappedObjectProperty;
+typedef TQString      MappedObjectProperty;
 typedef float        MappedObjectValue;
 
-// typedef QValueVector<MappedObjectProperty> MappedObjectPropertyList;
+// typedef TQValueVector<MappedObjectProperty> MappedObjectPropertyList;
 // replaced with a std::vector<> for Qt2 compatibility
 
 typedef std::vector<MappedObjectId> MappedObjectIdList;
@@ -54,14 +54,14 @@ typedef enum
     Duplex
 } PortDirection;
 
-QDataStream& operator>>(QDataStream& s, MappedObjectIdList&);
-QDataStream& operator<<(QDataStream&, const MappedObjectIdList&);
+TQDataStream& operator>>(TQDataStream& s, MappedObjectIdList&);
+TQDataStream& operator<<(TQDataStream&, const MappedObjectIdList&);
 
-QDataStream& operator>>(QDataStream& s, MappedObjectPropertyList&);
-QDataStream& operator<<(QDataStream&, const MappedObjectPropertyList&);
+TQDataStream& operator>>(TQDataStream& s, MappedObjectPropertyList&);
+TQDataStream& operator<<(TQDataStream&, const MappedObjectPropertyList&);
 
-QDataStream& operator>>(QDataStream& s, MappedObjectValueList&);
-QDataStream& operator<<(QDataStream&, const MappedObjectValueList&);
+TQDataStream& operator>>(TQDataStream& s, MappedObjectValueList&);
+TQDataStream& operator<<(TQDataStream&, const MappedObjectValueList&);
 
 }
 
diff --git a/src/sound/MappedComposition.cpp b/src/sound/MappedComposition.cpp
index 975fccf..a2537f0 100644
--- a/src/sound/MappedComposition.cpp
+++ b/src/sound/MappedComposition.cpp
@@ -19,7 +19,7 @@
   COPYING included with this distribution for more information.
 */
 
-#include <qdatastream.h>
+#include <tqdatastream.h>
 #include "MappedComposition.h"
 #include "MappedEvent.h"
 #include "SegmentPerformanceHelper.h"
@@ -49,11 +49,11 @@ MappedComposition::MappedComposition(const MappedComposition &mC):
 
 }
 
-// Turn a MappedComposition into a QDataStream - MappedEvents can
+// Turn a MappedComposition into a TQDataStream - MappedEvents can
 // stream themselves.
 //
-QDataStream&
-operator<<(QDataStream &dS, MappedComposition *mC)
+TQDataStream&
+operator<<(TQDataStream &dS, MappedComposition *mC)
 {
     dS << int(mC->size());
 
@@ -64,8 +64,8 @@ operator<<(QDataStream &dS, MappedComposition *mC)
 }
 
 
-QDataStream&
-operator<<(QDataStream &dS, const MappedComposition &mC)
+TQDataStream&
+operator<<(TQDataStream &dS, const MappedComposition &mC)
 {
     dS << int(mC.size());
 
@@ -76,10 +76,10 @@ operator<<(QDataStream &dS, const MappedComposition &mC)
 }
 
 
-// Turn a QDataStream into a MappedComposition
+// Turn a TQDataStream into a MappedComposition
 //
-QDataStream&
-operator>>(QDataStream &dS, MappedComposition *mC)
+TQDataStream&
+operator>>(TQDataStream &dS, MappedComposition *mC)
 {
     int sliceSize;
     MappedEvent *mE;
@@ -109,8 +109,8 @@ operator>>(QDataStream &dS, MappedComposition *mC)
     return dS;
 }
 
-QDataStream&
-operator>>(QDataStream &dS, MappedComposition &mC)
+TQDataStream&
+operator>>(TQDataStream &dS, MappedComposition &mC)
 {
     int sliceSize;
     MappedEvent *mE;
diff --git a/src/sound/MappedComposition.h b/src/sound/MappedComposition.h
index bfa7c05..a7e03fd 100644
--- a/src/sound/MappedComposition.h
+++ b/src/sound/MappedComposition.h
@@ -25,7 +25,7 @@
 
 
 // MappedComposition is used with MappedEvent to create a sequence
-// of MIDI ready events ready for playing.  The QDataStream operators
+// of MIDI ready events ready for playing.  The TQDataStream operators
 // are a necessary part of the DCOP transmission process allowing 
 // the whole class to be serialized.  The core application is sent
 // a request specifying a time slice between given start and end
@@ -36,7 +36,7 @@
 #include <Composition.h>
 #include "MappedEvent.h"
 #include <set>
-#include <qdatastream.h>
+#include <tqdatastream.h>
 
 namespace Rosegarden
 {
@@ -71,10 +71,10 @@ public:
     // This section is used for serialising this class over DCOP
     //
     //
-    friend QDataStream& operator>>(QDataStream &dS, MappedComposition *mC);
-    friend QDataStream& operator<<(QDataStream &dS, MappedComposition *mC);
-    friend QDataStream& operator>>(QDataStream &dS, MappedComposition &mC);
-    friend QDataStream& operator<<(QDataStream &dS, const MappedComposition &mC);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedComposition *mC);
+    friend TQDataStream& operator<<(TQDataStream &dS, MappedComposition *mC);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedComposition &mC);
+    friend TQDataStream& operator<<(TQDataStream &dS, const MappedComposition &mC);
 
     // Clear out
     void clear();
diff --git a/src/sound/MappedDevice.cpp b/src/sound/MappedDevice.cpp
index 619be2a..e5a9dd8 100644
--- a/src/sound/MappedDevice.cpp
+++ b/src/sound/MappedDevice.cpp
@@ -110,8 +110,8 @@ MappedDevice::operator=(const MappedDevice &mD)
 }
 
 
-QDataStream&
-operator>>(QDataStream &dS, MappedDevice *mD)
+TQDataStream&
+operator>>(TQDataStream &dS, MappedDevice *mD)
 {
     int instruments = 0;
     dS >> instruments;
@@ -123,9 +123,9 @@ operator>>(QDataStream &dS, MappedDevice *mD)
         instruments--;
     }
 
-    QString name;
+    TQString name;
     unsigned int id, dType;
-    QString connection;
+    TQString connection;
     unsigned int direction;
     unsigned int recording;
 
@@ -154,8 +154,8 @@ operator>>(QDataStream &dS, MappedDevice *mD)
 }
 
 
-QDataStream&
-operator>>(QDataStream &dS, MappedDevice &mD)
+TQDataStream&
+operator>>(TQDataStream &dS, MappedDevice &mD)
 {
     int instruments;
     dS >> instruments;
@@ -169,8 +169,8 @@ operator>>(QDataStream &dS, MappedDevice &mD)
     }
 
     unsigned int id, dType;
-    QString name;
-    QString connection;
+    TQString name;
+    TQString connection;
     unsigned int direction;
     unsigned int recording;
 
@@ -198,8 +198,8 @@ operator>>(QDataStream &dS, MappedDevice &mD)
     return dS;
 }
 
-QDataStream&
-operator<<(QDataStream &dS, MappedDevice *mD)
+TQDataStream&
+operator<<(TQDataStream &dS, MappedDevice *mD)
 {
     dS << (int)mD->size();
 
@@ -208,8 +208,8 @@ operator<<(QDataStream &dS, MappedDevice *mD)
 
     dS << (unsigned int)(mD->getId());
     dS << (int)(mD->getType());
-    dS << QString(mD->getName().c_str());
-    dS << QString(mD->getConnection().c_str());
+    dS << TQString(mD->getName().c_str());
+    dS << TQString(mD->getConnection().c_str());
     dS << mD->getDirection();
     dS << (unsigned int)(mD->isRecording());
 
@@ -222,8 +222,8 @@ operator<<(QDataStream &dS, MappedDevice *mD)
     return dS;
 }
 
-QDataStream&
-operator<<(QDataStream &dS, const MappedDevice &mD)
+TQDataStream&
+operator<<(TQDataStream &dS, const MappedDevice &mD)
 {
     dS << (int)mD.size();
 
@@ -232,8 +232,8 @@ operator<<(QDataStream &dS, const MappedDevice &mD)
 
     dS << (unsigned int)(mD.getId());
     dS << (int)(mD.getType());
-    dS << QString(mD.getName().c_str());
-    dS << QString(mD.getConnection().c_str());
+    dS << TQString(mD.getName().c_str());
+    dS << TQString(mD.getConnection().c_str());
     dS << mD.getDirection();
     dS << (unsigned int)(mD.isRecording());
 
diff --git a/src/sound/MappedDevice.h b/src/sound/MappedDevice.h
index f53bb37..654a7c5 100644
--- a/src/sound/MappedDevice.h
+++ b/src/sound/MappedDevice.h
@@ -22,7 +22,7 @@
 #include <string>
 #include <vector>
 
-#include <qdatastream.h>
+#include <tqdatastream.h>
 
 #include "Device.h"
 #include "MidiDevice.h"
@@ -58,10 +58,10 @@ public:
     MappedDevice& operator+(const MappedDevice &mD);
     MappedDevice& operator=(const MappedDevice &mD);
 
-    friend QDataStream& operator>>(QDataStream &dS, MappedDevice *mD);
-    friend QDataStream& operator<<(QDataStream &dS, MappedDevice *mD);
-    friend QDataStream& operator>>(QDataStream &dS, MappedDevice &mD);
-    friend QDataStream& operator<<(QDataStream &dS, const MappedDevice &mD);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedDevice *mD);
+    friend TQDataStream& operator<<(TQDataStream &dS, MappedDevice *mD);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedDevice &mD);
+    friend TQDataStream& operator<<(TQDataStream &dS, const MappedDevice &mD);
 
     std::string getName() const { return m_name; }
     void setName(const std::string &name) { m_name = name; }
diff --git a/src/sound/MappedEvent.cpp b/src/sound/MappedEvent.cpp
index 9b4ccab..4bae51e 100644
--- a/src/sound/MappedEvent.cpp
+++ b/src/sound/MappedEvent.cpp
@@ -19,9 +19,9 @@
   COPYING included with this distribution for more information.
 */
 
-#include <qdir.h>
-#include <qfile.h>
-#include <qfileinfo.h>
+#include <tqdir.h>
+#include <tqfile.h>
+#include <tqfileinfo.h>
 
 #include <kstddirs.h>
 
@@ -181,8 +181,8 @@ MappedEvent::operator=(const MappedEvent &mE)
 //
 //const size_t MappedEvent::streamedSize = 12 * sizeof(unsigned int);
 
-QDataStream&
-operator<<(QDataStream &dS, MappedEvent *mE)
+TQDataStream&
+operator<<(TQDataStream &dS, MappedEvent *mE)
 {
     dS << (unsigned int)mE->getTrackId();
     dS << (unsigned int)mE->getInstrument();
@@ -208,8 +208,8 @@ operator<<(QDataStream &dS, MappedEvent *mE)
     return dS;
 }
 
-QDataStream&
-operator<<(QDataStream &dS, const MappedEvent &mE)
+TQDataStream&
+operator<<(TQDataStream &dS, const MappedEvent &mE)
 {
     dS << (unsigned int)mE.getTrackId();
     dS << (unsigned int)mE.getInstrument();
@@ -235,8 +235,8 @@ operator<<(QDataStream &dS, const MappedEvent &mE)
     return dS;
 }
 
-QDataStream&
-operator>>(QDataStream &dS, MappedEvent *mE)
+TQDataStream&
+operator>>(TQDataStream &dS, MappedEvent *mE)
 {
     unsigned int trackId = 0, instrument = 0, type = 0, data1 = 0, data2 = 0;
     long eventTimeSec = 0, eventTimeNsec = 0, durationSec = 0, durationNsec = 0,
@@ -288,8 +288,8 @@ operator>>(QDataStream &dS, MappedEvent *mE)
     return dS;
 }
 
-QDataStream&
-operator>>(QDataStream &dS, MappedEvent &mE)
+TQDataStream&
+operator>>(TQDataStream &dS, MappedEvent &mE)
 {
     unsigned int trackId = 0, instrument = 0, type = 0, data1 = 0, data2 = 0;
     long eventTimeSec = 0, eventTimeNsec = 0, durationSec = 0, durationNsec = 0,
@@ -363,7 +363,7 @@ public:
     DataBlockFile(DataBlockRepository::blockid id);
     ~DataBlockFile();
 
-    QString getFileName()
+    TQString getFileName()
     {
         return m_fileName;
     }
@@ -384,13 +384,13 @@ protected:
     void prepareToRead();
 
     //--------------- Data members ---------------------------------
-    QString m_fileName;
-    QFile m_file;
+    TQString m_fileName;
+    TQFile m_file;
     bool m_cleared;
 };
 
 DataBlockFile::DataBlockFile(DataBlockRepository::blockid id)
-        : m_fileName(KGlobal::dirs()->resourceDirs("tmp").first() + QString("/rosegarden_datablock_%1").arg(id)),
+        : m_fileName(KGlobal::dirs()->resourceDirs("tmp").first() + TQString("/rosegarden_datablock_%1").arg(id)),
         m_file(m_fileName),
         m_cleared(false)
 {
@@ -401,7 +401,7 @@ DataBlockFile::~DataBlockFile()
 {
     if (m_cleared) {
 //        std::cerr << "~DataBlockFile : removing " << m_fileName.latin1() << std::endl;
-        QFile::remove
+        TQFile::remove
             (m_fileName);
     }
 
@@ -409,7 +409,7 @@ DataBlockFile::~DataBlockFile()
 
 bool DataBlockFile::exists()
 {
-    return QFile::exists(m_fileName);
+    return TQFile::exists(m_fileName);
 }
 
 void DataBlockFile::setData(const std::string& s)
@@ -417,7 +417,7 @@ void DataBlockFile::setData(const std::string& s)
   //  std::cerr << "DataBlockFile::setData() : setting data to " << m_fileName << std::endl;
     prepareToWrite();
 
-    QDataStream stream(&m_file);
+    TQDataStream stream(&m_file);
     stream.writeRawBytes(s.data(), s.length());
 }
 
@@ -428,7 +428,7 @@ std::string DataBlockFile::getData()
 
     prepareToRead();
 
-    QDataStream stream(&m_file);
+    TQDataStream stream(&m_file);
  //   std::cerr << "DataBlockFile::getData() : file size = " << m_file.size() << std::endl;
     char* tmp = new char[m_file.size()];
     stream.readRawBytes(tmp, m_file.size());
@@ -447,7 +447,7 @@ void DataBlockFile::addDataByte(MidiByte byte)
 void DataBlockFile::addDataString(const std::string& s)
 {
     prepareToWrite();
-    QDataStream stream(&m_file);
+    TQDataStream stream(&m_file);
     stream.writeRawBytes(s.data(), s.length());
 }
 
@@ -564,12 +564,12 @@ void DataBlockRepository::clear()
 
     // Erase all 'datablock_*' files
     //
-    QString tmpPath = KGlobal::dirs()->resourceDirs("tmp").first();
+    TQString tmpPath = KGlobal::dirs()->resourceDirs("tmp").first();
 
-    QDir segmentsDir(tmpPath, "rosegarden_datablock_*");
+    TQDir segmentsDir(tmpPath, "rosegarden_datablock_*");
     for (unsigned int i = 0; i < segmentsDir.count(); ++i) {
-        QString segmentName = tmpPath + '/' + segmentsDir[i];
-        QFile::remove
+        TQString segmentName = tmpPath + '/' + segmentsDir[i];
+        TQFile::remove
             (segmentName);
     }
 }
diff --git a/src/sound/MappedEvent.h b/src/sound/MappedEvent.h
index cc4e3f3..f5151b2 100644
--- a/src/sound/MappedEvent.h
+++ b/src/sound/MappedEvent.h
@@ -19,7 +19,7 @@
   COPYING included with this distribution for more information.
 */
 
-#include <qdatastream.h>
+#include <tqdatastream.h>
 
 #include "Composition.h" // for RealTime
 #include "Event.h"
@@ -459,10 +459,10 @@ public:
 
     MappedEvent& operator=(const MappedEvent &mE);
 
-    friend QDataStream& operator>>(QDataStream &dS, MappedEvent *mE);
-    friend QDataStream& operator<<(QDataStream &dS, MappedEvent *mE);
-    friend QDataStream& operator>>(QDataStream &dS, MappedEvent &mE);
-    friend QDataStream& operator<<(QDataStream &dS, const MappedEvent &mE);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedEvent *mE);
+    friend TQDataStream& operator<<(TQDataStream &dS, MappedEvent *mE);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedEvent &mE);
+    friend TQDataStream& operator<<(TQDataStream &dS, const MappedEvent &mE);
 
     /// Add a single byte to the event's datablock (for SysExs)
     void addDataByte(MidiByte byte);
diff --git a/src/sound/MappedInstrument.cpp b/src/sound/MappedInstrument.cpp
index b353f78..a3c366f 100644
--- a/src/sound/MappedInstrument.cpp
+++ b/src/sound/MappedInstrument.cpp
@@ -74,11 +74,11 @@ MappedInstrument::MappedInstrument(Instrument *instr):
         m_audioChannels(instr->getAudioChannels())
 {}
 
-QDataStream&
-operator>>(QDataStream &dS, MappedInstrument *mI)
+TQDataStream&
+operator>>(TQDataStream &dS, MappedInstrument *mI)
 {
     unsigned int type, channel, id, device, audioChannels;
-    QString name;
+    TQString name;
 
     dS >> type;
     dS >> channel;
@@ -97,11 +97,11 @@ operator>>(QDataStream &dS, MappedInstrument *mI)
     return dS;
 }
 
-QDataStream&
-operator>>(QDataStream &dS, MappedInstrument &mI)
+TQDataStream&
+operator>>(TQDataStream &dS, MappedInstrument &mI)
 {
     unsigned int type, channel, id, device, audioChannels;
-    QString name;
+    TQString name;
 
     dS >> type;
     dS >> channel;
@@ -120,14 +120,14 @@ operator>>(QDataStream &dS, MappedInstrument &mI)
     return dS;
 }
 
-QDataStream&
-operator<<(QDataStream &dS, MappedInstrument *mI)
+TQDataStream&
+operator<<(TQDataStream &dS, MappedInstrument *mI)
 {
     dS << (unsigned int)mI->getType();
     dS << (unsigned int)mI->getChannel();
     dS << (unsigned int)mI->getId();
     ;
-    dS << QString(mI->getName().c_str());
+    dS << TQString(mI->getName().c_str());
     dS << (unsigned int)mI->getDevice();
     dS << (unsigned int)mI->getAudioChannels();
 
@@ -135,14 +135,14 @@ operator<<(QDataStream &dS, MappedInstrument *mI)
 }
 
 
-QDataStream&
-operator<<(QDataStream &dS, const MappedInstrument &mI)
+TQDataStream&
+operator<<(TQDataStream &dS, const MappedInstrument &mI)
 {
     dS << (unsigned int)mI.getType();
     dS << (unsigned int)mI.getChannel();
     dS << (unsigned int)mI.getId();
     ;
-    dS << QString(mI.getName().c_str());
+    dS << TQString(mI.getName().c_str());
     dS << (unsigned int)mI.getDevice();
     dS << (unsigned int)mI.getAudioChannels();
 
diff --git a/src/sound/MappedInstrument.h b/src/sound/MappedInstrument.h
index 49f0167..fc6d5e1 100644
--- a/src/sound/MappedInstrument.h
+++ b/src/sound/MappedInstrument.h
@@ -82,10 +82,10 @@ public:
     unsigned int getAudioChannels() const { return m_audioChannels; }
     void setAudioChannels(unsigned int channels) { m_audioChannels = channels; }
 
-    friend QDataStream& operator>>(QDataStream &dS, MappedInstrument *mI);
-    friend QDataStream& operator<<(QDataStream &dS, MappedInstrument *mI);
-    friend QDataStream& operator>>(QDataStream &dS, MappedInstrument &mI);
-    friend QDataStream& operator<<(QDataStream &dS, const MappedInstrument &mI);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedInstrument *mI);
+    friend TQDataStream& operator<<(TQDataStream &dS, MappedInstrument *mI);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedInstrument &mI);
+    friend TQDataStream& operator<<(TQDataStream &dS, const MappedInstrument &mI);
 
 private:
 
diff --git a/src/sound/MappedRealTime.cpp b/src/sound/MappedRealTime.cpp
index ba596fd..ec328d9 100644
--- a/src/sound/MappedRealTime.cpp
+++ b/src/sound/MappedRealTime.cpp
@@ -24,24 +24,24 @@
 namespace Rosegarden
 {
 
-QDataStream&
-operator>>(QDataStream &dS, MappedRealTime *mRT)
+TQDataStream&
+operator>>(TQDataStream &dS, MappedRealTime *mRT)
 {
     dS >> mRT->sec;
     dS >> mRT->nsec;
     return dS;
 }
 
-QDataStream&
-operator<<(QDataStream &dS, MappedRealTime *mRT)
+TQDataStream&
+operator<<(TQDataStream &dS, MappedRealTime *mRT)
 {
     dS << mRT->sec;
     dS << mRT->nsec;
     return dS;
 }
 
-QDataStream&
-operator>>(QDataStream &dS, MappedRealTime &mRT)
+TQDataStream&
+operator>>(TQDataStream &dS, MappedRealTime &mRT)
 {
     dS >> mRT.sec;
     dS >> mRT.nsec;
@@ -49,8 +49,8 @@ operator>>(QDataStream &dS, MappedRealTime &mRT)
 }
 
 
-QDataStream&
-operator<<(QDataStream &dS, const MappedRealTime &mRT)
+TQDataStream&
+operator<<(TQDataStream &dS, const MappedRealTime &mRT)
 {
     dS << mRT.sec;
     dS << mRT.nsec;
diff --git a/src/sound/MappedRealTime.h b/src/sound/MappedRealTime.h
index ca2afd0..f88b1c4 100644
--- a/src/sound/MappedRealTime.h
+++ b/src/sound/MappedRealTime.h
@@ -19,7 +19,7 @@
   COPYING included with this distribution for more information.
 */
 
-#include <qdatastream.h>
+#include <tqdatastream.h>
 #include "RealTime.h"
 
 // Just a DCOP wrapper to RealTime
@@ -42,10 +42,10 @@ public:
 
     // DCOP datastream
     //
-    friend QDataStream& operator>>(QDataStream &dS, MappedRealTime *mRT);
-    friend QDataStream& operator<<(QDataStream &dS, MappedRealTime *mRT);
-    friend QDataStream& operator>>(QDataStream &dS, MappedRealTime &mRT);
-    friend QDataStream& operator<<(QDataStream &dS, const MappedRealTime &mRT);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedRealTime *mRT);
+    friend TQDataStream& operator<<(TQDataStream &dS, MappedRealTime *mRT);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedRealTime &mRT);
+    friend TQDataStream& operator<<(TQDataStream &dS, const MappedRealTime &mRT);
 
 
 };
diff --git a/src/sound/MappedStudio.cpp b/src/sound/MappedStudio.cpp
index 4b35122..b72550b 100644
--- a/src/sound/MappedStudio.cpp
+++ b/src/sound/MappedStudio.cpp
@@ -59,11 +59,11 @@ static inline void releaseLock(const char *file, int line)
 #define GET_LOCK getLock(__FILE__,__LINE__)
 #define RELEASE_LOCK releaseLock(__FILE__,__LINE__)
 
-// These stream functions are stolen and adapted from Qt3 qvaluevector.h
+// These stream functions are stolen and adapted from Qt3 tqvaluevector.h
 //
 // ** Copyright (C) 1992-2000 Trolltech AS.  All rights reserved.
 //
-QDataStream& operator>>(QDataStream& s, MappedObjectIdList& v)
+TQDataStream& operator>>(TQDataStream& s, MappedObjectIdList& v)
 {
     v.clear();
     Q_UINT32 c;
@@ -77,7 +77,7 @@ QDataStream& operator>>(QDataStream& s, MappedObjectIdList& v)
     return s;
 }
 
-QDataStream& operator<<(QDataStream& s, const MappedObjectIdList& v)
+TQDataStream& operator<<(TQDataStream& s, const MappedObjectIdList& v)
 {
     s << (Q_UINT32)v.size();
     MappedObjectIdList::const_iterator it = v.begin();
@@ -86,7 +86,7 @@ QDataStream& operator<<(QDataStream& s, const MappedObjectIdList& v)
     return s;
 }
 
-QDataStream& operator>>(QDataStream& s, MappedObjectPropertyList& v)
+TQDataStream& operator>>(TQDataStream& s, MappedObjectPropertyList& v)
 {
     v.clear();
     Q_UINT32 c;
@@ -100,7 +100,7 @@ QDataStream& operator>>(QDataStream& s, MappedObjectPropertyList& v)
     return s;
 }
 
-QDataStream& operator<<(QDataStream& s, const MappedObjectPropertyList& v)
+TQDataStream& operator<<(TQDataStream& s, const MappedObjectPropertyList& v)
 {
     s << (Q_UINT32)v.size();
     MappedObjectPropertyList::const_iterator it = v.begin();
@@ -109,7 +109,7 @@ QDataStream& operator<<(QDataStream& s, const MappedObjectPropertyList& v)
     return s;
 }
 
-QDataStream& operator>>(QDataStream& s, MappedObjectValueList& v)
+TQDataStream& operator>>(TQDataStream& s, MappedObjectValueList& v)
 {
     v.clear();
     Q_UINT32 c;
@@ -123,7 +123,7 @@ QDataStream& operator>>(QDataStream& s, MappedObjectValueList& v)
     return s;
 }
 
-QDataStream& operator<<(QDataStream& s, const MappedObjectValueList& v)
+TQDataStream& operator<<(TQDataStream& s, const MappedObjectValueList& v)
 {
     s << (Q_UINT32)v.size();
     MappedObjectValueList::const_iterator it = v.begin();
@@ -213,7 +213,7 @@ MappedObject::getChildren()
     MappedObjectPropertyList list;
     std::vector<MappedObject*>::iterator it = m_children.begin();
     for (; it != m_children.end(); it++)
-        list.push_back(QString("%1").arg((*it)->getId()));
+        list.push_back(TQString("%1").arg((*it)->getId()));
 
     return list;
 }
@@ -228,7 +228,7 @@ MappedObject::getChildren(MappedObjectType type)
     std::vector<MappedObject*>::iterator it = m_children.begin();
     for (; it != m_children.end(); it++) {
         if ((*it)->getType() == type)
-            list.push_back(QString("%1").arg((*it)->getId()));
+            list.push_back(TQString("%1").arg((*it)->getId()));
     }
 
     return list;
@@ -891,14 +891,14 @@ MappedAudioFader::getPropertyList(const MappedObjectProperty &property)
         it = m_connectionsIn.begin();
 
         for ( ; it != m_connectionsIn.end(); ++it) {
-            list.push_back(QString("%1").arg(*it));
+            list.push_back(TQString("%1").arg(*it));
         }
     } else if (property == MappedConnectableObject::ConnectionsOut) {
         MappedObjectValueList::const_iterator
         it = m_connectionsOut.begin();
 
         for ( ; it != m_connectionsOut.end(); ++it) {
-            list.push_back(QString("%1").arg(*it));
+            list.push_back(TQString("%1").arg(*it));
         }
     }
 
@@ -1021,14 +1021,14 @@ MappedAudioBuss::getPropertyList(const MappedObjectProperty &property)
         it = m_connectionsIn.begin();
 
         for ( ; it != m_connectionsIn.end(); ++it) {
-            list.push_back(QString("%1").arg(*it));
+            list.push_back(TQString("%1").arg(*it));
         }
     } else if (property == MappedConnectableObject::ConnectionsOut) {
         MappedObjectValueList::const_iterator
         it = m_connectionsOut.begin();
 
         for ( ; it != m_connectionsOut.end(); ++it) {
-            list.push_back(QString("%1").arg(*it));
+            list.push_back(TQString("%1").arg(*it));
         }
     }
 
@@ -1246,7 +1246,7 @@ MappedPluginSlot::getPropertyList(const MappedObjectProperty &property)
             dynamic_cast<MappedStudio*>(getParent());
 
         if (studio) {
-            QStringList programs =
+            TQStringList programs =
                 studio->getSoundDriver()->getPluginInstancePrograms(m_instrument,
                         m_position);
 
@@ -1288,7 +1288,7 @@ MappedPluginSlot::getProperty(const MappedObjectProperty &property,
 
 bool
 MappedPluginSlot::getProperty(const MappedObjectProperty &property,
-                              QString &value)
+                              TQString &value)
 {
     if (property == Identifier) {
         value = m_identifier;
@@ -1336,11 +1336,11 @@ MappedPluginSlot::getProgram(int bank, int program)
                     program);
     }
 
-    return QString();
+    return TQString();
 }
 
 unsigned long
-MappedPluginSlot::getProgram(QString name)
+MappedPluginSlot::getProgram(TQString name)
 {
     MappedStudio *studio =
         dynamic_cast<MappedStudio*>(getParent());
@@ -1381,7 +1381,7 @@ MappedPluginSlot::setProperty(const MappedObjectProperty &property,
 
 void
 MappedPluginSlot::setProperty(const MappedObjectProperty &property,
-                              QString value)
+                              TQString value)
 {
     if (property == Identifier) {
 
@@ -1472,8 +1472,8 @@ MappedPluginSlot::setPropertyList(const MappedObjectProperty &property,
         for (MappedObjectPropertyList::const_iterator i = values.begin();
                 i != values.end(); ++i) {
 
-            QString key = *i;
-            QString value = *++i;
+            TQString key = *i;
+            TQString value = *++i;
 
 #ifdef DEBUG_MAPPEDSTUDIO
 
@@ -1485,7 +1485,7 @@ MappedPluginSlot::setPropertyList(const MappedObjectProperty &property,
                 continue;
 
             if (studio) {
-                QString rv =
+                TQString rv =
                     studio->getSoundDriver()->configurePlugin(m_instrument,
                             m_position,
                             key, value);
@@ -1500,8 +1500,8 @@ MappedPluginSlot::setPropertyList(const MappedObjectProperty &property,
         for (MappedObjectPropertyList::const_iterator i = values.begin();
                 i != values.end(); ++i) {
 
-            QString key = *i;
-            QString value = *++i;
+            TQString key = *i;
+            TQString value = *++i;
 
             m_configuration[key] = value;
         }
@@ -1605,7 +1605,7 @@ MappedPluginPort::getProperty(const MappedObjectProperty &property,
 
 bool
 MappedPluginPort::getProperty(const MappedObjectProperty &property,
-                              QString &value)
+                              TQString &value)
 {
     if (property == Name) {
         value = m_name;
@@ -1698,7 +1698,7 @@ MappedPluginPort::setProperty(const MappedObjectProperty &property,
 
 void
 MappedPluginPort::setProperty(const MappedObjectProperty &property,
-                              QString value)
+                              TQString value)
 {
     if (property == Name) {
         m_name = value;
diff --git a/src/sound/MappedStudio.h b/src/sound/MappedStudio.h
index 0896e6b..89acc9b 100644
--- a/src/sound/MappedStudio.h
+++ b/src/sound/MappedStudio.h
@@ -22,8 +22,8 @@
 #include <map>
 #include <string>
 #include <vector>
-#include <qdatastream.h>
-#include <qstring.h>
+#include <tqdatastream.h>
+#include <tqstring.h>
 
 #include "MappedCommon.h"
 #include "Instrument.h"
@@ -99,7 +99,7 @@ public:
     // Only relevant to objects that have string properties
     // 
     virtual bool getProperty(const MappedObjectProperty &/* property */,
-                             QString &/* value */) { return false; }
+                             TQString &/* value */) { return false; }
 
     virtual void setProperty(const MappedObjectProperty &property,
                              MappedObjectValue value) = 0;
@@ -107,7 +107,7 @@ public:
     // Only relevant to objects that have string properties
     // 
     virtual void setProperty(const MappedObjectProperty &/* property */,
-                             QString /* value */) { }
+                             TQString /* value */) { }
 
     // Only relevant to objects that have list properties
     //
@@ -237,10 +237,10 @@ public:
     // DCOP streaming
     //
     /* dunno if we need this
-    friend QDataStream& operator>>(QDataStream &dS, MappedStudio *mS);
-    friend QDataStream& operator<<(QDataStream &dS, MappedStudio *mS);
-    friend QDataStream& operator>>(QDataStream &dS, MappedStudio &mS);
-    friend QDataStream& operator<<(QDataStream &dS, const MappedStudio &mS);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedStudio *mS);
+    friend TQDataStream& operator<<(TQDataStream &dS, MappedStudio *mS);
+    friend TQDataStream& operator>>(TQDataStream &dS, MappedStudio &mS);
+    friend TQDataStream& operator<<(TQDataStream &dS, const MappedStudio &mS);
     */
 
 
@@ -465,13 +465,13 @@ public:
                              MappedObjectValue &value);
 
     virtual bool getProperty(const MappedObjectProperty &property,
-                             QString &value);
+                             TQString &value);
 
     virtual void setProperty(const MappedObjectProperty &property,
                              MappedObjectValue value);
 
     virtual void setProperty(const MappedObjectProperty &property,
-                             QString value);
+                             TQString value);
 
     virtual void setPropertyList(const MappedObjectProperty &,
                                  const MappedObjectPropertyList &);
@@ -482,24 +482,24 @@ public:
     InstrumentId getInstrument() const { return m_instrument; }
     int getPosition() const { return m_position; }
 
-    QString getProgram(int bank, int program);
-    unsigned long getProgram(QString name); // rv is bank << 16 + program
+    TQString getProgram(int bank, int program);
+    unsigned long getProgram(TQString name); // rv is bank << 16 + program
 
 protected:
-    QString                   m_identifier;
+    TQString                   m_identifier;
 
-    QString                   m_name;
-    QString                   m_label;
-    QString                   m_author;
-    QString                   m_copyright;
-    QString                   m_category;
+    TQString                   m_name;
+    TQString                   m_label;
+    TQString                   m_author;
+    TQString                   m_copyright;
+    TQString                   m_category;
     unsigned long             m_portCount;
 
     InstrumentId              m_instrument;
     int                       m_position;
     bool                      m_bypassed;
 
-    std::map<QString, QString> m_configuration;
+    std::map<TQString, TQString> m_configuration;
 };
 
 class MappedPluginPort : public MappedObject
@@ -523,13 +523,13 @@ public:
                              MappedObjectValue &value);
 
     virtual bool getProperty(const MappedObjectProperty &property,
-                             QString &value);
+                             TQString &value);
 
     virtual void setProperty(const MappedObjectProperty &property,
                              MappedObjectValue value);
 
     virtual void setProperty(const MappedObjectProperty &property,
-                             QString value);
+                             TQString value);
 
     void setValue(MappedObjectValue value);
     MappedObjectValue getValue() const;
@@ -538,7 +538,7 @@ public:
 
 protected:
     int                     m_portNumber;
-    QString                 m_name;
+    TQString                 m_name;
     MappedObjectValue       m_minimum;
     MappedObjectValue       m_maximum;
     MappedObjectValue       m_default;
diff --git a/src/sound/MidiFile.h b/src/sound/MidiFile.h
index da97374..7efeb28 100644
--- a/src/sound/MidiFile.h
+++ b/src/sound/MidiFile.h
@@ -27,7 +27,7 @@
 #include <list>
 #include <map>
 
-#include <qobject.h>
+#include <tqobject.h>
 
 #include "Midi.h"
 #include "MidiEvent.h"
@@ -63,7 +63,7 @@ typedef std::map<unsigned int, MidiTrack> MidiComposition;
 
 class Studio;
 
-class MidiFile : public QObject, public SoundFile
+class MidiFile : public TQObject, public SoundFile
 {
     Q_OBJECT
 public:
diff --git a/src/sound/PeakFile.cpp b/src/sound/PeakFile.cpp
index 8881114..3c306db 100644
--- a/src/sound/PeakFile.cpp
+++ b/src/sound/PeakFile.cpp
@@ -22,9 +22,9 @@
 #include <cstdlib>
 #include <kapplication.h>
 
-#include <qdatetime.h>
-#include <qstringlist.h>
-#include <qpalette.h>
+#include <tqdatetime.h>
+#include <tqstringlist.h>
+#include <tqpalette.h>
 #include <kapp.h>
 
 #include "PeakFile.h"
@@ -57,7 +57,7 @@ PeakFile::PeakFile(AudioFile *audioFile):
         m_numberOfPeaks(0),
         m_positionPeakOfPeaks(0),
         m_offsetToPeaks(0),
-        m_modificationTime(QDate(1970, 1, 1), QTime(0, 0, 0)),
+        m_modificationTime(TQDate(1970, 1, 1), TQTime(0, 0, 0)),
         m_chunkStartPosition(0),
         m_lastPreviewStartTime(0, 0),
         m_lastPreviewEndTime(0, 0),
@@ -73,7 +73,7 @@ PeakFile::open()
 {
     // Set the file size
     //
-    QFileInfo info(QString(m_fileName.c_str()));
+    TQFileInfo info(TQString(m_fileName.c_str()));
     m_fileSize = info.size();
 
     // If we're already open then don't open again
@@ -148,15 +148,15 @@ PeakFile::parseHeader()
 
     // Read in date string and convert it up to QDateTime
     //
-    QString dateString = QString(header.substr(40, 28).c_str());
+    TQString dateString = TQString(header.substr(40, 28).c_str());
 
-    QStringList dateTime = QStringList::split(":", dateString);
+    TQStringList dateTime = TQStringList::split(":", dateString);
 
-    m_modificationTime.setDate(QDate(dateTime[0].toInt(),
+    m_modificationTime.setDate(TQDate(dateTime[0].toInt(),
                                      dateTime[1].toInt(),
                                      dateTime[2].toInt()));
 
-    m_modificationTime.setTime(QTime(dateTime[3].toInt(),
+    m_modificationTime.setTime(TQTime(dateTime[3].toInt(),
                                      dateTime[4].toInt(),
                                      dateTime[5].toInt(),
                                      dateTime[6].toInt()));
@@ -288,7 +288,7 @@ PeakFile::close()
     //
     m_modificationTime = m_modificationTime.currentDateTime();
 
-    QString fDate;
+    TQString fDate;
     fDate.sprintf("%04d:%02d:%02d:%02d:%02d:%02d:%03d",
                   m_modificationTime.date().year(),
                   m_modificationTime.date().month(),
diff --git a/src/sound/PeakFile.h b/src/sound/PeakFile.h
index 26ef71c..ce1aeac 100644
--- a/src/sound/PeakFile.h
+++ b/src/sound/PeakFile.h
@@ -20,8 +20,8 @@
 
 #include <vector>
 
-#include <qobject.h>
-#include <qdatetime.h>
+#include <tqobject.h>
+#include <tqdatetime.h>
 
 #include "SoundFile.h"
 #include "RealTime.h"
@@ -51,7 +51,7 @@ class AudioFile;
 
 typedef std::pair<RealTime, RealTime> SplitPointPair;
 
-class PeakFile : public QObject, public SoundFile
+class PeakFile : public TQObject, public SoundFile
 {
     Q_OBJECT
 
@@ -121,7 +121,7 @@ public:
     int getPositionPeakOfPeaks() const { return m_positionPeakOfPeaks; }
     int getOffsetToPeaks() const { return m_offsetToPeaks; }
     int getBodyBytes() const { return m_bodyBytes; }
-    QDateTime getModificationTime() const { return m_modificationTime; }
+    TQDateTime getModificationTime() const { return m_modificationTime; }
     std::streampos getChunkStartPosition() const
         { return m_chunkStartPosition; }
 
@@ -166,7 +166,7 @@ protected:
 
     // Peak timestamp
     //
-    QDateTime m_modificationTime;
+    TQDateTime m_modificationTime;
 
     std::streampos m_chunkStartPosition;
 
diff --git a/src/sound/PeakFileManager.cpp b/src/sound/PeakFileManager.cpp
index 10293e6..e860e00 100644
--- a/src/sound/PeakFileManager.cpp
+++ b/src/sound/PeakFileManager.cpp
@@ -32,7 +32,7 @@
 #include <string>
 #include <vector>
 
-#include <qobject.h>
+#include <tqobject.h>
 
 #include "PeakFileManager.h"
 #include "AudioFile.h"
@@ -178,8 +178,8 @@ PeakFileManager::generatePeaks(AudioFile *audioFile,
     if (audioFile->getType() == WAV) {
         m_currentPeakFile = getPeakFile(audioFile);
 
-        QObject::connect(m_currentPeakFile, SIGNAL(setProgress(int)),
-                         this, SIGNAL(setProgress(int)));
+        TQObject::connect(m_currentPeakFile, TQT_SIGNAL(setProgress(int)),
+                         this, TQT_SIGNAL(setProgress(int)));
 
         // Just write out a peak file
         //
@@ -299,11 +299,11 @@ PeakFileManager::stopPreview()
     if (m_currentPeakFile) {
         // Stop processing
         //
-        QString fileName = QString(m_currentPeakFile->getFilename().data());
+        TQString fileName = TQString(m_currentPeakFile->getFilename().data());
         m_currentPeakFile->setProcessingPeaks(false);
         m_currentPeakFile->disconnect();
 
-        QFile file(fileName);
+        TQFile file(fileName);
         bool removed = file.remove();
 
 #ifdef DEBUG_PEAKFILEMANAGER
diff --git a/src/sound/PeakFileManager.h b/src/sound/PeakFileManager.h
index 07ff704..40e6d95 100644
--- a/src/sound/PeakFileManager.h
+++ b/src/sound/PeakFileManager.h
@@ -35,7 +35,7 @@
 #include <fstream>
 #include <vector>
 
-#include <qobject.h>
+#include <tqobject.h>
 
 
 #include "PeakFile.h"
diff --git a/src/sound/PluginFactory.cpp b/src/sound/PluginFactory.cpp
index 49c1014..173fdee 100644
--- a/src/sound/PluginFactory.cpp
+++ b/src/sound/PluginFactory.cpp
@@ -46,7 +46,7 @@ static LADSPAPluginFactory *_dssiInstance = 0;
 #endif
 
 PluginFactory *
-PluginFactory::instance(QString pluginType)
+PluginFactory::instance(TQString pluginType)
 {
     if (pluginType == "ladspa") {
 #ifdef HAVE_LADSPA
@@ -82,9 +82,9 @@ PluginFactory::instance(QString pluginType)
 }
 
 PluginFactory *
-PluginFactory::instanceFor(QString identifier)
+PluginFactory::instanceFor(TQString identifier)
 {
-    QString type, soName, label;
+    TQString type, soName, label;
     PluginIdentifier::parseIdentifier(identifier, type, soName, label);
     return instance(type);
 }
diff --git a/src/sound/PluginFactory.h b/src/sound/PluginFactory.h
index 820b233..6f93729 100644
--- a/src/sound/PluginFactory.h
+++ b/src/sound/PluginFactory.h
@@ -22,7 +22,7 @@
 #ifndef _PLUGIN_FACTORY_H_
 #define _PLUGIN_FACTORY_H_
 
-#include <qstring.h>
+#include <tqstring.h>
 #include <vector>
 
 #include "MappedCommon.h"
@@ -36,8 +36,8 @@ class MappedPluginSlot;
 class PluginFactory
 {
 public:
-    static PluginFactory *instance(QString pluginType);
-    static PluginFactory *instanceFor(QString identifier);
+    static PluginFactory *instance(TQString pluginType);
+    static PluginFactory *instanceFor(TQString identifier);
     static void enumerateAllPlugins(MappedObjectPropertyList &);
 
     static void setSampleRate(int sampleRate) { m_sampleRate = sampleRate; }
@@ -52,7 +52,7 @@ public:
      * Return a reference to a list of all plugin identifiers that can
      * be created by this factory.
      */
-    virtual const std::vector<QString> &getPluginIdentifiers() const = 0;
+    virtual const std::vector<TQString> &getPluginIdentifiers() const = 0;
 
     /**
      * Append to the given list descriptions of all the available
@@ -68,13 +68,13 @@ public:
      * method should also destroy and recreate the plugin slot's
      * port child objects.
      */
-    virtual void populatePluginSlot(QString identifier,
+    virtual void populatePluginSlot(TQString identifier,
                                     MappedPluginSlot &slot) = 0;
 
     /**
      * Instantiate a plugin.
      */
-    virtual RunnablePluginInstance *instantiatePlugin(QString identifier,
+    virtual RunnablePluginInstance *instantiatePlugin(TQString identifier,
                                                       int instrumentId,
                                                       int position,
                                                       unsigned int sampleRate,
@@ -85,7 +85,7 @@ protected:
     PluginFactory() { }
 
     // for call by RunnablePluginInstance dtor
-    virtual void releasePlugin(RunnablePluginInstance *, QString identifier) = 0;
+    virtual void releasePlugin(RunnablePluginInstance *, TQString identifier) = 0;
     friend class RunnablePluginInstance;
 
     static int m_sampleRate;
diff --git a/src/sound/PluginIdentifier.cpp b/src/sound/PluginIdentifier.cpp
index 25b3317..bd2f96c 100644
--- a/src/sound/PluginIdentifier.cpp
+++ b/src/sound/PluginIdentifier.cpp
@@ -26,19 +26,19 @@ namespace Rosegarden
 {
 
 QString
-PluginIdentifier::createIdentifier(QString type,
-                                   QString soName,
-                                   QString label)
+PluginIdentifier::createIdentifier(TQString type,
+                                   TQString soName,
+                                   TQString label)
 {
-    QString identifier = type + ":" + soName + ":" + label;
+    TQString identifier = type + ":" + soName + ":" + label;
     return identifier;
 }
 
 void
-PluginIdentifier::parseIdentifier(QString identifier,
-                                  QString &type,
-                                  QString &soName,
-                                  QString &label)
+PluginIdentifier::parseIdentifier(TQString identifier,
+                                  TQString &type,
+                                  TQString &soName,
+                                  TQString &label)
 {
     type = identifier.section(':', 0, 0);
     soName = identifier.section(':', 1, 1);
@@ -46,9 +46,9 @@ PluginIdentifier::parseIdentifier(QString identifier,
 }
 
 bool
-PluginIdentifier::areIdentifiersSimilar(QString id1, QString id2)
+PluginIdentifier::areIdentifiersSimilar(TQString id1, TQString id2)
 {
-    QString type1, type2, soName1, soName2, label1, label2;
+    TQString type1, type2, soName1, soName2, label1, label2;
 
     parseIdentifier(id1, type1, soName1, label1);
     parseIdentifier(id2, type2, soName2, label2);
diff --git a/src/sound/PluginIdentifier.h b/src/sound/PluginIdentifier.h
index e8519ad..efb280c 100644
--- a/src/sound/PluginIdentifier.h
+++ b/src/sound/PluginIdentifier.h
@@ -22,7 +22,7 @@
 #ifndef _PLUGIN_IDENTIFIER_H_
 #define _PLUGIN_IDENTIFIER_H_
 
-#include <qstring.h>
+#include <tqstring.h>
 
 
 // A plugin identifier is simply a string; this class provides methods
@@ -34,15 +34,15 @@ class PluginIdentifier {
 
 public:
  
-    static QString createIdentifier(QString type, QString soName, QString label);
+    static TQString createIdentifier(TQString type, TQString soName, TQString label);
 
-    static void parseIdentifier(QString identifier,
-                                QString &type, QString &soName, QString &label);
+    static void parseIdentifier(TQString identifier,
+                                TQString &type, TQString &soName, TQString &label);
 
-    static bool areIdentifiersSimilar(QString id1, QString id2);
+    static bool areIdentifiersSimilar(TQString id1, TQString id2);
 
     // Not strictly related to identifiers
-    static QString RESERVED_PROJECT_DIRECTORY_KEY;
+    static TQString RESERVED_PROJECT_DIRECTORY_KEY;
 };
 
 }
diff --git a/src/sound/RunnablePluginInstance.h b/src/sound/RunnablePluginInstance.h
index f15f146..df07cf0 100644
--- a/src/sound/RunnablePluginInstance.h
+++ b/src/sound/RunnablePluginInstance.h
@@ -22,8 +22,8 @@
 #ifndef _RUNNABLE_PLUGIN_INSTANCE_H_
 #define _RUNNABLE_PLUGIN_INSTANCE_H_
 
-#include <qstring.h>
-#include <qstringlist.h>
+#include <tqstring.h>
+#include <tqstringlist.h>
 #include <vector>
 
 #include "RealTime.h"
@@ -54,7 +54,7 @@ public:
 
     virtual bool isOK() const = 0;
 
-    virtual QString getIdentifier() const = 0;
+    virtual TQString getIdentifier() const = 0;
 
     /**
      * Run for one block, starting at the given time.  The start time
@@ -71,16 +71,16 @@ public:
     virtual sample_t **getAudioInputBuffers() = 0;
     virtual sample_t **getAudioOutputBuffers() = 0;
 
-    virtual QStringList getPrograms() { return QStringList(); }
-    virtual QString getCurrentProgram() { return QString(); }
-    virtual QString getProgram(int /* bank */, int /* program */) { return QString(); }
-    virtual unsigned long getProgram(QString /* name */) { return 0; } // bank << 16 + program
-    virtual void selectProgram(QString) { }
+    virtual TQStringList getPrograms() { return TQStringList(); }
+    virtual TQString getCurrentProgram() { return TQString(); }
+    virtual TQString getProgram(int /* bank */, int /* program */) { return TQString(); }
+    virtual unsigned long getProgram(TQString /* name */) { return 0; } // bank << 16 + program
+    virtual void selectProgram(TQString) { }
 
     virtual void setPortValue(unsigned int port, float value) = 0;
     virtual float getPortValue(unsigned int port) = 0;
 
-    virtual QString configure(QString /* key */, QString /* value */) { return QString(); }
+    virtual TQString configure(TQString /* key */, TQString /* value */) { return TQString(); }
 
     virtual void sendEvent(const RealTime & /* eventTime */,
                            const void * /* event */) { }
@@ -98,11 +98,11 @@ public:
     void setFactory(PluginFactory *f) { m_factory = f; } // ew
 
 protected:
-    RunnablePluginInstance(PluginFactory *factory, QString identifier) :
+    RunnablePluginInstance(PluginFactory *factory, TQString identifier) :
         m_factory(factory), m_identifier(identifier) { }
 
     PluginFactory *m_factory;
-    QString m_identifier;
+    TQString m_identifier;
 
     friend class PluginFactory;
 };
diff --git a/src/sound/SoundDriver.h b/src/sound/SoundDriver.h
index fabbaef..74bd966 100644
--- a/src/sound/SoundDriver.h
+++ b/src/sound/SoundDriver.h
@@ -21,7 +21,7 @@
 #include <string>
 #include <vector>
 #include <list>
-#include <qstringlist.h>
+#include <tqstringlist.h>
 
 #include "Device.h"
 #include "MappedComposition.h"
@@ -181,7 +181,7 @@ public:
     //
     virtual bool record(RecordStatus recordStatus,
                         const std::vector<InstrumentId> *armedInstruments = 0,
-                        const std::vector<QString> *audioFileNames = 0) = 0;
+                        const std::vector<TQString> *audioFileNames = 0) = 0;
 
     // Process anything that's pending
     //
@@ -194,7 +194,7 @@ public:
     // Plugin instance management
     //
     virtual void setPluginInstance(InstrumentId id,
-                                   QString identifier,
+                                   TQString identifier,
                                    int position) = 0;
 
     virtual void removePluginInstance(InstrumentId id,
@@ -217,29 +217,29 @@ public:
                                          int position,
                                          bool value) = 0;
 
-    virtual QStringList getPluginInstancePrograms(InstrumentId id,
+    virtual TQStringList getPluginInstancePrograms(InstrumentId id,
                                                   int position) = 0;
 
-    virtual QString getPluginInstanceProgram(InstrumentId id,
+    virtual TQString getPluginInstanceProgram(InstrumentId id,
                                              int position) = 0;
 
-    virtual QString getPluginInstanceProgram(InstrumentId id,
+    virtual TQString getPluginInstanceProgram(InstrumentId id,
                                              int position,
                                              int bank,
                                              int program) = 0;
 
     virtual unsigned long getPluginInstanceProgram(InstrumentId id,
                                                    int position,
-                                                   QString name) = 0;
+                                                   TQString name) = 0;
     
     virtual void setPluginInstanceProgram(InstrumentId id,
                                           int position,
-                                          QString program) = 0;
+                                          TQString program) = 0;
 
-    virtual QString configurePlugin(InstrumentId id,
+    virtual TQString configurePlugin(InstrumentId id,
                                     int position,
-                                    QString key,
-                                    QString value) = 0;
+                                    TQString key,
+                                    TQString value) = 0;
 
     virtual void setAudioBussLevels(int bussId,
                                     float dB,
@@ -260,7 +260,7 @@ public:
 
     virtual void sleep(const RealTime &rt);
 
-    virtual QString getStatusLog() { return ""; }
+    virtual TQString getStatusLog() { return ""; }
 
     // Mapped Instruments
     //
@@ -301,20 +301,20 @@ public:
         return Device::NO_DEVICE;
     }
     virtual void removeDevice(DeviceId) { }
-    virtual void renameDevice(DeviceId, QString) { }
+    virtual void renameDevice(DeviceId, TQString) { }
 
     virtual unsigned int getConnections(Device::DeviceType,
                                         MidiDevice::DeviceDirection) { return 0; }
-    virtual QString getConnection(Device::DeviceType,
+    virtual TQString getConnection(Device::DeviceType,
                                   MidiDevice::DeviceDirection,
                                   unsigned int) { return ""; }
-    virtual void setConnection(DeviceId, QString) { }
-    virtual void setPlausibleConnection(DeviceId id, QString c) { setConnection(id, c); }
+    virtual void setConnection(DeviceId, TQString) { }
+    virtual void setPlausibleConnection(DeviceId id, TQString c) { setConnection(id, c); }
 
     virtual unsigned int getTimers() { return 0; }
-    virtual QString getTimer(unsigned int) { return ""; }
-    virtual QString getCurrentTimer() { return ""; }
-    virtual void setCurrentTimer(QString) { }
+    virtual TQString getTimer(unsigned int) { return ""; }
+    virtual TQString getCurrentTimer() { return ""; }
+    virtual void setCurrentTimer(TQString) { }
 
     virtual void getAudioInstrumentNumbers(InstrumentId &, int &) = 0;
     virtual void getSoftSynthInstrumentNumbers(InstrumentId &, int &) = 0;