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QtGui.QPaintEvent Class Reference

The QPaintEvent class contains event parameters for paint events. More...

Inheritance diagram for QtGui.QPaintEvent:
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Collaboration diagram for QtGui.QPaintEvent:
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Public Member Functions

 QPaintEvent (QRegion paintRegion)
 
 
 QPaintEvent (QRect paintRect)
 
 
 QPaintEvent (QPaintEvent copy)
 
 
override void CreateProxy ()
 
new QRect Rect ()
 
 
new QRegion Region ()
 
 
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

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

Properties

new bool M_erased [get, set]
 
new QRect M_rect [get, set]
 
new QRegion M_region [get, set]
 
- Properties inherited from QtCore.QEvent
virtual System.IntPtr SmokeObject [get, set]
 
new ushort T [get, set]
 
static new QMetaObject StaticMetaObject [get]
 

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
}
  More...
 
- Static Public Member Functions inherited from QtCore.QEvent
static int RegisterEventType (int hint=-1)
 
 
- Protected Attributes inherited from QtCore.QEvent
SmokeInvocation interceptor
 

Detailed Description

The QPaintEvent class contains event parameters for paint events.

Paint events are sent to widgets that need to update themselves, for instance when part of a widget is exposed because a covering widget was moved.

The event contains a region() that needs to be updated, and a rect() that is the bounding rectangle of that region. Both are provided because many widgets can't make much use of region(), and rect() can be much faster than region().boundingRect().

Automatic Clipping

Painting is clipped to region() during the processing of a paint event. This clipping is performed by Qt's paint system and is independent of any clipping that may be applied to a QPainter used to draw on the paint device.

As a result, the value returned by QPainter::clipRegion() on a newly-constructed QPainter will not reflect the clip region that is used by the paint system.

See also QPainter, QWidget::update(), QWidget::repaint(), and QWidget::paintEvent().

Constructor & Destructor Documentation

QtGui.QPaintEvent.QPaintEvent ( System.Type  dummy)
protected
QtGui.QPaintEvent.QPaintEvent ( QRegion  paintRegion)

Constructs a paint event object with the region that needs to be updated. The region is specified by paintRegion.

QtGui.QPaintEvent.QPaintEvent ( QRect  paintRect)

Constructs a paint event object with the rectangle that needs to be updated. The region is specified by paintRect.

QtGui.QPaintEvent.QPaintEvent ( QPaintEvent  copy)

Constructs a paint event object with the region that needs to be updated. The region is specified by paintRegion.

Member Function Documentation

override void QtGui.QPaintEvent.CreateProxy ( )
virtual

Reimplemented from QtCore.QEvent.

new void QtGui.QPaintEvent.Dispose ( )
new QRect QtGui.QPaintEvent.Rect ( )

Returns the rectangle that needs to be updated.

See also region() and QPainter::setClipRect().

new QRegion QtGui.QPaintEvent.Region ( )

Returns the region that needs to be updated.

See also rect() and QPainter::setClipRegion().

Property Documentation

new bool QtGui.QPaintEvent.M_erased
getsetprotected
new QRect QtGui.QPaintEvent.M_rect
getsetprotected
new QRegion QtGui.QPaintEvent.M_region
getsetprotected