XtBuildEventMask()XtBuildEventMask()NameXtBuildEventMask - retrieve a widget's event mask.
Synopsis
EventMask XtBuildEventMask(w)
Widget w;
Inputs
w Specifies the widget. Must be of class Core or any subclass
thereof.
Returns
An event mask with a bit set for each event type the widget is receiv‐
ing.
DescriptionXtBuildEventMask() returns a widget's event mask. The mask reflects
the events the widget is currently selecting. (If the widget is unre‐
alized, then the mask reflects the events the widget will select when
it is realized.) This event mask is the logical OR of all event masks
selected by adding event handlers and event translations (including
accelerators). It is updated whenever event handlers or translations
are installed or removed for the specified widget.
Structures
The event_mask is formed by combining the event mask symbols listed in
the table below using the bitwise OR operator ( ). Each mask symbol
sets a bit in the event_mask.
NoEventMask Button1MotionMask StructureNotifyMask
KeyPressMask Button2MotionMask ResizeRedirectMask
KeyReleaseMask Button3MotionMask SubstructureNotifyMask
ButtonPressMask Button4MotionMask SubstructureRedirectMask
ButtonReleaseMask Button5MotionMask FocusChangeMask
EnterWindowMask ButtonMotionMask PropertyChangeMask
LeaveWindowMask KeymapStateMask ColormapChangeMask
PointerMotionMask ExposureMask OwnerGrabButtonMask
PointerMotionHintMask VisibilityChangeMask
See AlsoXtAddEventHandler(1), XtAddRawEventHandler(1), XtRealizeWidget(1).
Xt - Event Handling XtBuildEventMask()