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 relevant handler(s).
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DESCRIPTION
Tk_HandleEvent is a lower-level procedure that deals with window events. It is called by Tcl_Ser-viceEvent Tcl_ServiceEvent
viceEvent (and indirectly by Tk_DoOneEvent), and in a few other cases within Tk. It makes callbacks
to any window event handlers (created by calls to Tk_CreateEventHandler) 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_HandleEvent. 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 anything else.
KEYWORDS
callback, event, handler, window
Tk Tk_HandleEvent(3)
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