Add Qt3 development HEAD version

author: Timothy Pearson <[email protected]> 2011-07-10 15:24:15 -0500
committer: Timothy Pearson <[email protected]> 2011-07-10 15:24:15 -0500
commit: bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch)
tree: 7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/datastreamformat.html
download: qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz
qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip
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+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/datastreamformat.doc:36 -->
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
+<title>Format of the QDataStream Operators</title>
+<style type="text/css"><!--
+fn { margin-left: 1cm; text-indent: -1cm; }
+a:link { color: #004faf; text-decoration: none }
+a:visited { color: #672967; text-decoration: none }
+body { background: #ffffff; color: black; }
+--></style>
+</head>
+<body>
+
+<table border="0" cellpadding="0" cellspacing="0" width="100%">
+<tr bgcolor="#E5E5E5">
+<td valign=center>
+ <a href="index.html">
+<font color="#004faf">Home</font></a>
+ | <a href="classes.html">
+<font color="#004faf">All&nbsp;Classes</font></a>
+ | <a href="mainclasses.html">
+<font color="#004faf">Main&nbsp;Classes</font></a>
+ | <a href="annotated.html">
+<font color="#004faf">Annotated</font></a>
+ | <a href="groups.html">
+<font color="#004faf">Grouped&nbsp;Classes</font></a>
+ | <a href="functions.html">
+<font color="#004faf">Functions</font></a>
+</td>
+<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Format of the QDataStream Operators</h1>
+
+
+
+<p> The <a href="qdatastream.html">QDataStream</a> allows you to serialize some of the Qt data types.
+The table below lists the data types that <a href="qdatastream.html">QDataStream</a> can serialize
+and how they are represented.
+<p> It is best to always cast integers to a Qt integer type when writing,
+and to read back into the same Qt integer type when reading.
+<p> <center><table cellpadding="4" cellspacing="2" border="0">
+<tr bgcolor="#f0f0f0"> <td valign="top">Q_INT8
+<td valign="top"><ul>
+<li> signed byte
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">Q_INT16
+<td valign="top"><ul>
+<li> signed 16 bit integer
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">Q_INT32
+<td valign="top"><ul>
+<li> signed 32 bit integer
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">Q_UINT8
+<td valign="top"><ul>
+<li> unsigned byte
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">Q_UINT16
+<td valign="top"><ul>
+<li> unsigned 16 bit integer
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">Q_UINT32
+<td valign="top"><ul>
+<li> unsigned 32 bit integer
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">float
+<td valign="top"><ul>
+<li> 32-bit floating point number using the standard IEEE-754 format
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">double
+<td valign="top"><ul>
+<li> 64-bit floating point number using the standard IEEE-754 format
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">char *
+<td valign="top"><ul>
+<li> The size of the string including the terminating 0 (Q_UINT32)
+<li> The string bytes including the terminating 0
+</ul>
+The null string is represented as <tt>(Q_UINT32) 0</tt>.
+<tr bgcolor="#d0d0d0"> <td valign="top">QBitArray
+<td valign="top"><ul>
+<li> The array size (Q_UINT32)
+<li> The array bits, i.e. (size + 7)/8 bytes
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QBrush
+<td valign="top"><ul>
+<li> The brush style (Q_UINT8)
+<li> The brush color (<a href="qcolor.html">QColor</a>)
+<li> If style is CustomPattern, the brush pixmap (<a href="qpixmap.html">QPixmap</a>)
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">QByteArray
+<td valign="top"><ul>
+<li> The array size (Q_UINT32)
+<li> The array bytes, i.e. size bytes
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QCString
+<td valign="top"><ul>
+<li> The size of the string including the terminating 0 (Q_UINT32)
+<li> The string bytes including the terminating 0
+</ul>
+The null string is represented as <tt>(Q_UINT32) 0</tt>.
+<tr bgcolor="#d0d0d0"> <td valign="top"><a href="qcolor.html">QColor</a>
+<td valign="top"><ul><li> RGB value serialized as a Q_UINT32 </ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QColorGroup
+<td valign="top"><ul>
+<li> foreground (<a href="qbrush.html">QBrush</a>)
+<li> button (QBrush)
+<li> light (QBrush)
+<li> midLight (QBrush)
+<li> dark (QBrush)
+<li> mid (QBrush)
+<li> text (QBrush)
+<li> brightText (QBrush)
+<li> ButtonText (QBrush)
+<li> base (QBrush)
+<li> background (QBrush)
+<li> shadow (QBrush)
+<li> highlight (QBrush)
+<li> highlightedText (QBrush)
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">QCursor
+<td valign="top"><ul>
+<li> Shape id (Q_INT16)
+<li> If shape is BitmapCursor: The bitmap (<a href="qpixmap.html">QPixmap</a>), mask (QPixmap) and hot spot (<a href="qpoint.html">QPoint</a>)
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QDate
+<td valign="top"><ul>
+<li> Julian day (Q_UINT32)
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">QDateTime
+<td valign="top"><ul>
+<li> Date (<a href="qdate.html">QDate</a>)
+<li> Time (<a href="qtime.html">QTime</a>)
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QFont
+<td valign="top"><ul>
+<li> The family (<a href="qcstring.html">QCString</a>)
+<li> The point size (Q_INT16)
+<li> The style hint (Q_UINT8)
+<li> The char set (Q_UINT8)
+<li> The weight (Q_UINT8)
+<li> The font bits (Q_UINT8)
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">QImage
+<td valign="top"><ul>
+<li> If the image is null a "null image" marker is saved;
+otherwise the image is saved in PNG or BMP format (depending
+on the stream version). If you want control of the format,
+stream the image into a <a href="qbuffer.html">QBuffer</a> (using <a href="qimageio.html">QImageIO</a>) and stream
+that.
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QMap
+<td valign="top"><ul>
+<li> The number of items (Q_UINT32)
+<li> For all items, the key and value
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">QPalette
+<td valign="top"><ul>
+<li> active (<a href="qcolorgroup.html">QColorGroup</a>)
+<li> disabled (QColorGroup)
+<li> inactive (QColorGroup)
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QPen
+<td valign="top"><ul>
+<li> The pen styles (Q_UINT8)
+<li> The pen width (Q_UINT8)
+<li> The pen color (<a href="qcolor.html">QColor</a>)
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">QPicture
+<td valign="top"><ul>
+<li> The size of the picture data (Q_UINT32)
+<li> The raw bytes of picture data (char)
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QPixmap
+<td valign="top"><ul>
+<li> Save it as a PNG image.
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">QPoint
+<td valign="top"><ul>
+<li> The x coordinate (Q_INT32)
+<li> The y coordinate (Q_INT32)
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QPointArray
+<td valign="top"><ul>
+<li> The array size (Q_UINT32)
+<li> The array points (<a href="qpoint.html">QPoint</a>)
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">QRect
+<td valign="top"><ul>
+<li> left (Q_INT32)
+<li> top (Q_INT32)
+<li> right (Q_INT32)
+<li> bottom (Q_INT32)
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QRegion
+<td valign="top"><ul>
+<li> The size of the data, i.e. 8 + 16 * (number of rectangles) (Q_UINT32)
+<li> QRGN_RECTS (Q_INT32)
+<li> The number of rectangles (Q_UINT32)
+<li> The rectangles in sequential order (<a href="qrect.html">QRect</a>)
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">QSize
+<td valign="top"><ul>
+<li> width (Q_INT32)
+<li> height (Q_INT32)
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QString
+<td valign="top"><ul>
+<li> If the string is null: 0xffffffff (Q_UINT32)<br>
+otherwise: The string length (Q_UINT32) followed by the
+data in UTF-16
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">QTime
+<td valign="top"><ul>
+<li> Milliseconds since midnight (Q_UINT32)
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QValueList
+<td valign="top"><ul>
+<li> The number of list elements (Q_UINT32)
+<li> All the elements in sequential order
+</ul>
+<tr bgcolor="#d0d0d0"> <td valign="top">QVariant
+<td valign="top"><ul>
+<li> The type of the data (Q_UINT32)
+<li> The data of the specified type
+</ul>
+<tr bgcolor="#f0f0f0"> <td valign="top">QWMatrix
+<td valign="top"><ul>
+<li> m11 (double)
+<li> m12 (double)
+<li> m21 (double)
+<li> m22 (double)
+<li> dx (double)
+<li> dy (double)
+</ul>
+</table></center>
+<p> 
+<!-- eof -->
+<p><address><hr><div align=center>
+<table width=100% cellspacing=0 border=0><tr>
+<td>Copyright &copy; 2007
+<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
+<td align=right><div align=right>Qt 3.3.8</div>
+</table></div></address></body>
+</html>
author	Timothy Pearson <[email protected]>	2011-07-10 15:24:15 -0500
committer	Timothy Pearson <[email protected]>	2011-07-10 15:24:15 -0500
commit	bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch)
tree	7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/datastreamformat.html
download	qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip