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XtBuildEventMask()					    XtBuildEventMask()

Name
  XtBuildEventMask - 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.

Description
  XtBuildEventMask()  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 Also
  XtAddEventHandler(1), XtAddRawEventHandler(1), XtRealizeWidget(1).

Xt - Event Handling					    XtBuildEventMask()

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