From bd0f3345a938b35ce6a12f6150373b0955b8dd12 Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Sun, 10 Jul 2011 15:24:15 -0500 Subject: Add Qt3 development HEAD version --- doc/html/qevent.html | 193 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 193 insertions(+) create mode 100644 doc/html/qevent.html (limited to 'doc/html/qevent.html') diff --git a/doc/html/qevent.html b/doc/html/qevent.html new file mode 100644 index 0000000..ef703d9 --- /dev/null +++ b/doc/html/qevent.html @@ -0,0 +1,193 @@ + + + + + +QEvent Class + + + + + + + +

QEvent Class Reference

+ +

The QEvent class is the base class of all +event classes. Event objects contain event parameters. +More... +

#include <qevent.h> +

Inherits Qt. +

Inherited by QTimerEvent, QMouseEvent, QWheelEvent, QTabletEvent, QKeyEvent, QFocusEvent, QPaintEvent, QMoveEvent, QResizeEvent, QCloseEvent, QIconDragEvent, QShowEvent, QHideEvent, QContextMenuEvent, QIMEvent, QDropEvent, QDragLeaveEvent, QChildEvent, and QCustomEvent. +

List of all member functions. +

Public Members

enum Type { None = 0, Timer = 1, MouseButtonPress = 2, MouseButtonRelease = 3, MouseButtonDblClick = 4, MouseMove = 5, KeyPress = 6, KeyRelease = 7, FocusIn = 8, FocusOut = 9, Enter = 10, Leave = 11, Paint = 12, Move = 13, Resize = 14, Create = 15, Destroy = 16, Show = 17, Hide = 18, Close = 19, Quit = 20, Reparent = 21, ShowMinimized = 22, ShowNormal = 23, WindowActivate = 24, WindowDeactivate = 25, ShowToParent = 26, HideToParent = 27, ShowMaximized = 28, ShowFullScreen = 29, Accel = 30, Wheel = 31, AccelAvailable = 32, CaptionChange = 33, IconChange = 34, ParentFontChange = 35, ApplicationFontChange = 36, ParentPaletteChange = 37, ApplicationPaletteChange = 38, PaletteChange = 39, Clipboard = 40, Speech = 42, SockAct = 50, AccelOverride = 51, DeferredDelete = 52, DragEnter = 60, DragMove = 61, DragLeave = 62, Drop = 63, DragResponse = 64, ChildInserted = 70, ChildRemoved = 71, LayoutHint = 72, ShowWindowRequest = 73, WindowBlocked = 74, WindowUnblocked = 75, ActivateControl = 80, DeactivateControl = 81, ContextMenu = 82, IMStart = 83, IMCompose = 84, IMEnd = 85, Accessibility = 86, TabletMove = 87, LocaleChange = 88, LanguageChange = 89, LayoutDirectionChange = 90, Style = 91, TabletPress = 92, TabletRelease = 93, OkRequest = 94, HelpRequest = 95, WindowStateChange = 96, IconDrag = 97, User = 1000, MaxUser = 65535 }
QEvent ( Type type )
virtual ~QEvent ()
Type type () const
bool spontaneous () const

Detailed Description

+ + +The QEvent class is the base class of all +event classes. Event objects contain event parameters. +

+ +

Qt's main event loop (QApplication::exec()) fetches native window +system events from the event queue, translates them into QEvents +and sends the translated events to QObjects. +

In general, events come from the underlying window system +(spontaneous() returns TRUE) but it is also possible to manually +send events using QApplication::sendEvent() and +QApplication::postEvent() (spontaneous() returns FALSE). +

QObjects receive events by having their QObject::event() function +called. The function can be reimplemented in subclasses to +customize event handling and add additional event types; +QWidget::event() is a notable example. By default, events are +dispatched to event handlers like QObject::timerEvent() and +QWidget::mouseMoveEvent(). QObject::installEventFilter() allows an +object to intercept events destined for another object. +

The basic QEvent contains only an event type parameter. +Subclasses of QEvent contain additional parameters that describe +the particular event. +

Member Type Documentation

QEvent::Type

+ +

This enum type defines the valid event types in Qt. The event +types and the specialized classes for each type are these: +

QEvent::None - Not an event. +
QEvent::Accessibility - Accessibility information is requested +
QEvent::Timer - Regular timer events, QTimerEvent. +
QEvent::MouseButtonPress - Mouse press, QMouseEvent. +
QEvent::MouseButtonRelease - Mouse release, QMouseEvent. +
QEvent::MouseButtonDblClick - Mouse press again, QMouseEvent. +
QEvent::MouseMove - Mouse move, QMouseEvent. +
QEvent::KeyPress - Key press (including Shift, for example), QKeyEvent. +
QEvent::KeyRelease - Key release, QKeyEvent. +
QEvent::IMStart - The start of input method composition, QIMEvent. +
QEvent::IMCompose - Input method composition is taking place, QIMEvent. +
QEvent::IMEnd - The end of input method composition, QIMEvent. +
QEvent::FocusIn - Widget gains keyboard focus, QFocusEvent. +
QEvent::FocusOut - Widget loses keyboard focus, QFocusEvent. +
QEvent::Enter - Mouse enters widget's boundaries. +
QEvent::Leave - Mouse leaves widget's boundaries. +
QEvent::Paint - Screen update necessary, QPaintEvent. +
QEvent::Move - Widget's position changed, QMoveEvent. +
QEvent::Resize - Widget's size changed, QResizeEvent. +
QEvent::Show - Widget was shown on screen, QShowEvent. +
QEvent::Hide - Widget was hidden, QHideEvent. +
QEvent::ShowToParent - A child widget has been shown. +
QEvent::HideToParent - A child widget has been hidden. +
QEvent::Close - Widget was closed (permanently), QCloseEvent. +
QEvent::ShowNormal - Widget should be shown normally (obsolete). +
QEvent::ShowMaximized - Widget should be shown maximized (obsolete). +
QEvent::ShowMinimized - Widget should be shown minimized (obsolete). +
QEvent::ShowFullScreen - Widget should be shown full-screen (obsolete). +
QEvent::ShowWindowRequest - Widget's window should be shown (obsolete). +
QEvent::DeferredDelete - The object will be deleted after it has +cleaned up. +
QEvent::Accel - Key press in child for shortcut key handling, QKeyEvent. +
QEvent::Wheel - Mouse wheel rolled, QWheelEvent. +
QEvent::ContextMenu - Context popup menu, QContextMenuEvent +
QEvent::AccelOverride - Key press in child, for overriding shortcut key handling, QKeyEvent. +
QEvent::AccelAvailable - internal. +
QEvent::WindowActivate - Window was activated. +
QEvent::WindowDeactivate - Window was deactivated. +
QEvent::CaptionChange - Widget's caption changed. +
QEvent::IconChange - Widget's icon changed. +
QEvent::ParentFontChange - Font of the parent widget changed. +
QEvent::ApplicationFontChange - Default application font changed. +
QEvent::PaletteChange - Palette of the widget changed. +
QEvent::ParentPaletteChange - Palette of the parent widget changed. +
QEvent::ApplicationPaletteChange - Default application palette changed. +
QEvent::Clipboard - Clipboard contents have changed. +
QEvent::SockAct - Socket activated, used to implement QSocketNotifier. +
QEvent::DragEnter - A drag-and-drop enters widget, QDragEnterEvent. +
QEvent::DragMove - A drag-and-drop is in progress, QDragMoveEvent. +
QEvent::DragLeave - A drag-and-drop leaves widget, QDragLeaveEvent. +
QEvent::Drop - A drag-and-drop is completed, QDropEvent. +
QEvent::DragResponse - Internal event used by Qt on some platforms. +
QEvent::ChildInserted - Object gets a child, QChildEvent. +
QEvent::ChildRemoved - Object loses a child, QChildEvent. +
QEvent::LayoutHint - Widget child has changed layout properties. +
QEvent::ActivateControl - Internal event used by Qt on some platforms. +
QEvent::DeactivateControl - Internal event used by Qt on some platforms. +
QEvent::LanguageChange - The application translation changed, QTranslator +
QEvent::LayoutDirectionChange - The direction of layouts changed +
QEvent::LocaleChange - The system locale changed +
QEvent::Quit - Reserved. +
QEvent::Create - Reserved. +
QEvent::Destroy - Reserved. +
QEvent::Reparent - Reserved. +
QEvent::Speech - Reserved for speech input. +
QEvent::TabletMove - A Wacom Tablet Move Event. +
QEvent::Style - Internal use only +
QEvent::TabletPress - A Wacom Tablet Press Event +
QEvent::TabletRelease - A Wacom Tablet Release Event +
QEvent::OkRequest - Internal event used by Qt on some platforms. +
QEvent::HelpRequest - Internal event used by Qt on some platforms. +
QEvent::IconDrag - Internal event used by Qt on some platforms when proxy icon is dragged. +
QEvent::WindowStateChange - The window's state, i.e. minimized, +maximized or full-screen, has changed. See QWidget::windowState(). +
QEvent::WindowBlocked - The window is modally blocked +
QEvent::WindowUnblocked - The window leaves modal blocking +
QEvent::User - User defined event. +
QEvent::MaxUser - Last user event id. +

User events should have values between User and MaxUser inclusive. + +

Member Function Documentation

QEvent::QEvent ( Type type ) +

+ +

Contructs an event object of type type. + +

QEvent::~QEvent () `[virtual]` +

+Destroys the event. If it was posted, +it will be removed from the list of events to be posted. + +

bool QEvent::spontaneous () const +

+ +

Returns TRUE if the event originated outside the application, i.e. +it is a system event; otherwise returns FALSE. + +

Type QEvent::type () const +

+ +

Returns the event type. + + +

+ +

Trademarks +

Qt 3.3.8

+ -- cgit v1.2.1