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Tk_HandleEvent(3)	     Tk Library Procedures	     Tk_HandleEvent(3)

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NAME
       Tk_HandleEvent - invoke event handlers for window system events

SYNOPSIS
       #include <tk.h>

       Tk_HandleEvent(eventPtr)

ARGUMENTS
       XEvent *eventPtr (in)	      Pointer  to X event to dispatch to rele‐
				      vant handler(s). It  is  important  that
				      all  unused  fields  of the structure be
				      set to zero.
_________________________________________________________________

DESCRIPTION
       Tk_HandleEvent is  a  lower-level  procedure  that  deals  with	window
       events.	  It   is   called  by	Tcl_ServiceEvent  (and	indirectly  by
       Tcl_DoOneEvent), and in a few other cases within Tk.   It  makes	 call‐
       backs  to any window event handlers (created by calls to Tk_CreateEven‐
       tHandler) that match eventPtr and then returns.	In some cases  it  may
       be  useful  for	an  application	 to bypass the Tk event queue and call
       Tk_HandleEvent directly instead of calling Tcl_QueueEvent  followed  by
       Tcl_ServiceEvent.

       This procedure may be invoked recursively.  For example, it is possible
       to invoke Tk_HandleEvent recursively from a handler called  by  Tk_Han‐
       dleEvent.   This	 sort of operation is useful in some modal situations,
       such as when a notifier has been popped up and an application wishes to
       wait  for  the user to click a button in the notifier before doing any‐
       thing else.

KEYWORDS
       callback, event, handler, window

Tk							     Tk_HandleEvent(3)

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