Event Classes

These Qt Core classes are used to create and handle events.

For more information see the Event System page.

QAbstractEventDispatcher	Interface to manage Qt's event queue
QActionEvent	Event that is generated when a QAction is added, removed, or changed
QBasicTimer	Timer events for objects
QChildEvent	Contains event parameters for child object events
QChildWindowEvent	Contains event parameters for child window changes
QCloseEvent	Contains parameters that describe a close event
QContextMenuEvent	Contains parameters that describe a context menu event
QDragEnterEvent	Event which is sent to a widget when a drag and drop action enters it
QDragLeaveEvent	Event that is sent to a widget when a drag and drop action leaves it
QDragMoveEvent	Event which is sent while a drag and drop action is in progress
QDropEvent	Event which is sent when a drag and drop action is completed
QDynamicPropertyChangeEvent	Contains event parameters for dynamic property change events
QEnterEvent	Contains parameters that describe an enter event
QEvent	The base class of all event classes. Event objects contain event parameters
QExposeEvent	Contains event parameters for expose events
QFileOpenEvent	Event that will be sent when there is a request to open a file or a URL
QFocusEvent	Contains event parameters for widget focus events
QGestureEvent	The description of triggered gestures
QHelpEvent	Event that is used to request helpful information about a particular point in a widget
QHideEvent	Event which is sent after a widget is hidden
QHoverEvent	Contains parameters that describe a mouse event
QIconDragEvent	Indicates that a main icon drag has begun
QInputEvent	The base class for events that describe user input
QInputMethodEvent	Parameters for input method events
QKeyEvent	Describes a key event
QMouseEvent	Contains parameters that describe a mouse event
QMoveEvent	Contains event parameters for move events
QNativeGestureEvent	Contains parameters that describe a gesture event
QPaintEvent	Contains event parameters for paint events
QPlatformSurfaceEvent	Used to notify about native platform surface events
QPointingDevice	Describes a device from which mouse, touch or tablet events originate
QPointingDeviceUniqueId	Identifies a unique object, such as a tagged token or stylus, which is used with a pointing device
QResizeEvent	Contains event parameters for resize events
QScrollEvent	Sent when scrolling
QScrollPrepareEvent	Sent in preparation of scrolling
QShortcut	Used to create keyboard shortcuts
QShortcutEvent	Event which is generated when the user presses a key combination
QShowEvent	Event that is sent when a widget is shown
QStatusTipEvent	Event that is used to show messages in a status bar
QTabletEvent	Contains parameters that describe a Tablet event
QTimer	Repetitive and single-shot timers
QTimerEvent	Contains parameters that describe a timer event
QTouchEvent	Contains parameters that describe a touch event
QWhatsThisClickedEvent	Event that can be used to handle hyperlinks in a "What's This?" text
QWheelEvent	Contains parameters that describe a wheel event
QWindowStateChangeEvent	The window state before a window state change