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QMouseEvent Class Reference

Inheritance diagram for QMouseEvent:

QInputEvent QEvent

List of all members.


Detailed Description

The QMouseEvent class contains parameters that describe a mouse event.

Mouse events occur when a mouse button is pressed or released inside a widget, or when the mouse cursor is moved.

Mouse move events will occur only when a mouse button is pressed down, unless mouse tracking has been enabled with QWidget::setMouseTracking().

Qt automatically grabs the mouse when a mouse button is pressed inside a widget; the widget will continue to receive mouse events until the last mouse button is released.

A mouse event contains a special accept flag that indicates whether the receiver wants the event. You should call ignore() if the mouse event is not handled by your widget. A mouse event is propagated up the parent widget chain until a widget accepts it with accept(), or an event filter consumes it.

The state of the keyboard modifier keys can be found by calling the {QInputEvent::modifiers()}{modifiers()} function, inhertied from QInputEvent.

The functions pos(), x(), and y() give the cursor position relative to the widget that receives the mouse event. If you move the widget as a result of the mouse event, use the global position returned by globalPos() to avoid a shaking motion.

The QWidget::setEnabled() function can be used to enable or disable mouse and keyboard events for a widget.

Reimplement the QWidget event handlers, QWidget::mousePressEvent(), QWidget::mouseReleaseEvent(), QWidget::mouseDoubleClickEvent(), and QWidget::mouseMoveEvent() to receive mouse events in your own widgets.

See also:
QWidget::setMouseTracking() QWidget::grabMouse() QCursor::pos()

Definition at line 54 of file qevent.h.


Public Types

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, ParentChange = 21, ParentAboutToChange = 131, ThreadChange = 22,
  WindowActivate = 24, WindowDeactivate = 25, ShowToParent = 26, HideToParent = 27,
  Wheel = 31, WindowTitleChange = 33, WindowIconChange = 34, ApplicationWindowIconChange = 35,
  ApplicationFontChange = 36, ApplicationLayoutDirectionChange = 37, ApplicationPaletteChange = 38, PaletteChange = 39,
  Clipboard = 40, Speech = 42, MetaCall = 43, SockAct = 50,
  WinEventAct = 132, DeferredDelete = 52, DragEnter = 60, DragMove = 61,
  DragLeave = 62, Drop = 63, DragResponse = 64, ChildAdded = 68,
  ChildPolished = 69, ChildRemoved = 71, ShowWindowRequest = 73, PolishRequest = 74,
  Polish = 75, LayoutRequest = 76, UpdateRequest = 77, UpdateLater = 78,
  EmbeddingControl = 79, ActivateControl = 80, DeactivateControl = 81, ContextMenu = 82,
  InputMethod = 83, AccessibilityPrepare = 86, TabletMove = 87, LocaleChange = 88,
  LanguageChange = 89, LayoutDirectionChange = 90, Style = 91, TabletPress = 92,
  TabletRelease = 93, OkRequest = 94, HelpRequest = 95, IconDrag = 96,
  FontChange = 97, EnabledChange = 98, ActivationChange = 99, StyleChange = 100,
  IconTextChange = 101, ModifiedChange = 102, MouseTrackingChange = 109, WindowBlocked = 103,
  WindowUnblocked = 104, WindowStateChange = 105, ToolTip = 110, WhatsThis = 111,
  StatusTip = 112, ActionChanged = 113, ActionAdded = 114, ActionRemoved = 115,
  FileOpen = 116, Shortcut = 117, ShortcutOverride = 51, WhatsThisClicked = 118,
  ToolBarChange = 120, ApplicationActivated = 121, ApplicationDeactivated = 122, QueryWhatsThis = 123,
  EnterWhatsThisMode = 124, LeaveWhatsThisMode = 125, ZOrderChange = 126, HoverEnter = 127,
  HoverLeave = 128, HoverMove = 129, AccessibilityHelp = 119, AccessibilityDescription = 130,
  AcceptDropsChange = 152, MenubarUpdated = 153, ZeroTimerEvent = 154, GraphicsSceneMouseMove = 155,
  GraphicsSceneMousePress = 156, GraphicsSceneMouseRelease = 157, GraphicsSceneMouseDoubleClick = 158, GraphicsSceneContextMenu = 159,
  GraphicsSceneHoverEnter = 160, GraphicsSceneHoverMove = 161, GraphicsSceneHoverLeave = 162, GraphicsSceneHelp = 163,
  GraphicsSceneDragEnter = 164, GraphicsSceneDragMove = 165, GraphicsSceneDragLeave = 166, GraphicsSceneDrop = 167,
  GraphicsSceneWheel = 168, KeyboardLayoutChange = 169, DynamicPropertyChange = 170, TabletEnterProximity = 171,
  TabletLeaveProximity = 172, User = 1000, MaxUser = 65535
}

Public Member Functions

void accept ()
Qt::MouseButton button () const
Qt::MouseButtons buttons () const
const QPointglobalPos () const
int globalX () const
int globalY () const
void ignore ()
bool isAccepted () const
Qt::KeyboardModifiers modifiers () const
const QPointpos () const
 QMouseEvent (Type type, const QPoint &pos, const QPoint &globalPos, Qt::MouseButton button, Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers)
 QMouseEvent (Type type, const QPoint &pos, Qt::MouseButton button, Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers)
void setAccepted (bool accepted)
bool spontaneous () const
Type type () const
int x () const
int y () const
 ~QMouseEvent ()

Protected Attributes

Qt::MouseButton b
QEventPrivate * d
QPoint g
Qt::KeyboardModifiers modState
Qt::MouseButtons mouseState
QPoint p
ushort t

The documentation for this class was generated from the following files:

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