hpux man page for xtbuildeventmask

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 receiving.

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 transla-
  tions 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()