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Event Classes

These classes are used to create and handle events.

For more information see the Object model and Signals and Slots.

QAbstractEventDispatcherThe QAbstractEventDispatcher class manages Qt's event queue, excluding GUI-related events.
QAccessibleEventThe QAccessibleEvent class is used to query addition accessibility information about complex widgets.
QActionEventThe QActionEvent class provides an event that is generated when a QAction is added, removed, or changed.
QBasicTimerThe QBasicTimer class provides timer events for objects.
QChildEventThe QChildEvent class contains event parameters for child object events.
QCloseEventThe QCloseEvent class contains parameters that describe a close event.
QContextMenuEventThe QContextMenuEvent class contains parameters that describe a context menu event.
QDragEnterEventThe QDragEnterEvent class provides an event which is sent to a widget when a drag and drop action enters it.
QDragLeaveEventThe QDragLeaveEvent class provides an event that is sent to a widget when a drag and drop action leaves it.
QDragMoveEventThe QDragMoveEvent class provides an event which is sent while a drag and drop action is in progress.
QDropEventThe QDropEvent class provides an event which is sent when a drag and drop action is completed.
QDynamicPropertyChangeEventThe QDynamicPropertyChangeEvent class contains event parameters for dynamic property change events.
QEventThe QEvent class is the base class of all event classes. Event objects contain event parameters.
QFileOpenEventThe QFileOpenEvent class provides an event that will be sent when there is a request to open a file.
QFocusEventThe QFocusEvent class contains event parameters for widget focus events.
QHelpEventThe QHelpEvent class provides an event that is used to request helpful information about a particular point in a widget.
QHideEventThe QHideEvent class provides an event which is sent after a widget is hidden.
QHoverEventThe QHoverEvent class contains parameters that describe a mouse event.
QIconDragEventThe QIconDragEvent class indicates that a main icon drag has begun.
QInputEventThe QInputEvent class is the base class for events that describe user input.
QInputMethodEventThe QInputMethodEvent class provides parameters for input method events.
QKeyEventThe QKeyEvent class contains describes a key event.
QMouseEventThe QMouseEvent class contains parameters that describe a mouse event.
QMoveEventThe QMoveEvent class contains event parameters for move events.
QPaintEventThe QPaintEvent class contains event parameters for paint events.
QResizeEventThe QResizeEvent class contains event parameters for resize events.
QShortcutThe QShortcut class is used to create keyboard shortcuts.
QShortcutEventThe QShortcutEvent class provides an event which is generated when the user presses a key combination.
QShowEventThe QShowEvent class provides an event that is sent when a widget is shown.
QStatusTipEventThe QStatusTipEvent class provides an event that is used to show messages in a status bar.
QTabletEventThe QTabletEvent class contains parameters that describe a Tablet event.
QTimerThe QTimer class provides repetitive and single-shot timers.
QTimerEventThe QTimerEvent class contains parameters that describe a timer event.
QWhatsThisClickedEventThe QWhatsThisClickedEvent class provides an event that can be used to handle hyperlinks in a "What's This?" text.
QWheelEventThe QWheelEvent class contains parameters that describe a wheel event.
QWindowStateChangeEventThe QWindowStateChangeEvent class provides the window state before a window state change.


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Qt 4.3.0beta