QtGui.QCloseEvent Class Reference

The QCloseEvent class contains parameters that describe a close event. More...

Inheritance diagram for QtGui.QCloseEvent:

Collaboration diagram for QtGui.QCloseEvent:

Public Member Functions
	QCloseEvent ()
	QCloseEvent (QCloseEvent copy)
override void	CreateProxy ()
new void	Dispose ()
Public Member Functions inherited from QtCore.QEvent
	QEvent (QEvent copy)
	QEvent (QEvent.Type type)
new void	Accept ()
new void	Ignore ()
new bool	IsAccepted ()
new void	SetAccepted (bool accepted)
new bool	Spontaneous ()
new QEvent.Type	type ()
new void	Dispose ()

Protected Member Functions
	QCloseEvent (System.Type dummy)
Protected Member Functions inherited from QtCore.QEvent
	QEvent (System.Type dummy)

Additional Inherited Members
Public Types inherited from QtCore.QEvent
enum	Type {   AcceptDropsChange = 152, AccessibilityDescription = 130, AccessibilityHelp = 119, AccessibilityPrepare = 86,   ActionAdded = 114, ActionChanged = 113, ActionRemoved = 115, ActivateControl = 80,   ActivationChange = 99, ApplicationActivate = 121, ApplicationActivated = 121, ApplicationDeactivate = 122,   ApplicationDeactivated = 122, ApplicationFontChange = 36, ApplicationLayoutDirectionChange = 37, ApplicationPaletteChange = 38,   ApplicationWindowIconChange = 35, ChildAdded = 68, ChildPolished = 69, ChildRemoved = 71,   Clipboard = 40, Close = 19, CloseSoftwareInputPanel = 200, ContentsRectChange = 178,   ContextMenu = 82, Create = 15, CursorChange = 183, DeactivateControl = 81,   DeferredDelete = 52, Destroy = 16, DragEnter = 60, DragLeave = 62,   DragMove = 61, DragResponse = 64, Drop = 63, DynamicPropertyChange = 170,   EmbeddingControl = 79, EnabledChange = 98, Enter = 10, EnterWhatsThisMode = 124,   FileOpen = 116, FocusIn = 8, FocusOut = 9, FontChange = 97,   FutureCallOut = 180, Gesture = 198, GestureOverride = 202, GrabKeyboard = 188,   GrabMouse = 186, GraphicsSceneContextMenu = 159, GraphicsSceneDragEnter = 164, GraphicsSceneDragLeave = 166,   GraphicsSceneDragMove = 165, GraphicsSceneDrop = 167, GraphicsSceneHelp = 163, GraphicsSceneHoverEnter = 160,   GraphicsSceneHoverLeave = 162, GraphicsSceneHoverMove = 161, GraphicsSceneMouseDoubleClick = 158, GraphicsSceneMouseMove = 155,   GraphicsSceneMousePress = 156, GraphicsSceneMouseRelease = 157, GraphicsSceneMove = 182, GraphicsSceneResize = 181,   GraphicsSceneWheel = 168, HelpRequest = 95, Hide = 18, HideToParent = 27,   HoverEnter = 127, HoverLeave = 128, HoverMove = 129, IconDrag = 96,   IconTextChange = 101, InputMethod = 83, KeyPress = 6, KeyRelease = 7,   KeyboardLayoutChange = 169, LanguageChange = 89, LayoutDirectionChange = 90, LayoutRequest = 76,   Leave = 11, LeaveWhatsThisMode = 125, LocaleChange = 88, MacGLClearDrawable = 191,   MacGLWindowChange = 179, MacSizeChange = 177, MaxUser = 65535, MenubarUpdated = 153,   MetaCall = 43, ModifiedChange = 102, MouseButtonDblClick = 4, MouseButtonPress = 2,   MouseButtonRelease = 3, MouseMove = 5, MouseTrackingChange = 109, Move = 13,   NativeGesture = 197, NetworkReplyUpdated = 185, NonClientAreaMouseButtonDblClick = 176, NonClientAreaMouseButtonPress = 174,   NonClientAreaMouseButtonRelease = 175, NonClientAreaMouseMove = 173, None = 0, OkRequest = 94,   Paint = 12, PaletteChange = 39, ParentAboutToChange = 131, ParentChange = 21,   Polish = 75, PolishRequest = 74, QueryWhatsThis = 123, Quit = 20,   RequestSoftwareInputPanel = 199, Resize = 14, Shortcut = 117, ShortcutOverride = 51,   Show = 17, ShowToParent = 26, ShowWindowRequest = 73, SockAct = 50,   Speech = 42, StateMachineSignal = 192, StateMachineWrapped = 193, StatusTip = 112,   Style = 91, StyleChange = 100, TabletEnterProximity = 171, TabletLeaveProximity = 172,   TabletMove = 87, TabletPress = 92, TabletRelease = 93, ThreadChange = 22,   Timer = 1, ToolBarChange = 120, ToolTip = 110, ToolTipChange = 184,   TouchBegin = 194, TouchEnd = 196, TouchUpdate = 195, UngrabKeyboard = 189,   UngrabMouse = 187, UpdateLater = 78, UpdateRequest = 77, UpdateSoftKeys = 201,   User = 1000, WhatsThis = 111, WhatsThisClicked = 118, Wheel = 31,   WinEventAct = 132, WinIdChange = 203, WindowActivate = 24, WindowBlocked = 103,   WindowDeactivate = 25, WindowIconChange = 34, WindowStateChange = 105, WindowTitleChange = 33,   WindowUnblocked = 104, ZOrderChange = 126, ZeroTimerEvent = 154 }
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Static Public Member Functions inherited from QtCore.QEvent
static int	RegisterEventType (int hint=-1)
Protected Attributes inherited from QtCore.QEvent
SmokeInvocation	interceptor
Properties inherited from QtCore.QEvent
virtual System.IntPtr	SmokeObject [get, set]
new ushort	T [get, set]
static new QMetaObject	StaticMetaObject [get]

Detailed Description

The QCloseEvent class contains parameters that describe a close event.

Close events are sent to widgets that the user wants to close, usually by choosing "Close" from the window menu, or by clicking the X title bar button. They are also sent when you call QWidget::close() to close a widget programmatically.

Close events contain a flag that indicates whether the receiver wants the widget to be closed or not. When a widget accepts the close event, it is hidden (and destroyed if it was created with the Qt::WA_DeleteOnClose flag). If it refuses to accept the close event nothing happens. (Under X11 it is possible that the window manager will forcibly close the window; but at the time of writing we are not aware of any window manager that does this.)

The event handler QWidget::closeEvent() receives close events. The default implementation of this event handler accepts the close event. If you do not want your widget to be hidden, or want some special handing, you should reimplement the event handler and ignore() the event.

The closeEvent() in the Application example shows a close event handler that asks whether to save a document before closing.

If you want the widget to be deleted when it is closed, create it with the Qt::WA_DeleteOnClose flag. This is very useful for independent top-level windows in a multi-window application.

QObjects emits the destroyed() signal when they are deleted.

If the last top-level window is closed, the QApplication::lastWindowClosed() signal is emitted.

The isAccepted() function returns true if the event's receiver has agreed to close the widget; call accept() to agree to close the widget and call ignore() if the receiver of this event does not want the widget to be closed.

See also QWidget::close(), QWidget::hide(), QObject::destroyed(), QCoreApplication::exec(), QCoreApplication::quit(), and QApplication::lastWindowClosed().

Constructor & Destructor Documentation

QtGui.QCloseEvent.QCloseEvent ( System.Type  dummy )

protected

QtGui.QCloseEvent.QCloseEvent

(

)

Constructs a close event object.

See also accept().

QtGui.QCloseEvent.QCloseEvent

(

QCloseEvent

copy

)

Constructs a close event object.

See also accept().

Member Function Documentation

override void QtGui.QCloseEvent.CreateProxy ( )

virtual

Reimplemented from QtCore.QEvent.

new void QtGui.QCloseEvent.Dispose

(

)