tk_queuewindowevent(3)
NAME
Tk_CollapseMotionEvents, Tk_QueueWindowEvent - Add a win
dow event to the Tcl event queue
SYNOPSIS
#include <tk.h> int Tk_CollapseMotionEvents(display, collapse) Tk_QueueWindowEvent(eventPtr, position)
ARGUMENTS
- Display *display (in) Display for which
- to control motion
event collapsing. - int collapse (in) Indicates whether
- motion events
should be col
lapsed or not. - XEvent *eventPtr (in) An event to add
- to the event
queue. - Tcl_QueuePosition position (in) Where to add the
- new event in the
queue:
TCL_QUEUE_TAIL, TCL_QUEUE_HEAD, or
TCL_QUEUE_MARK.
DESCRIPTION
Tk_QueueWindowEvent places a window event on Tcl's inter
nal event queue for eventual servicing. It creates a
Tcl_Event structure, copies the event into that structure,
and calls Tcl_QueueEvent to add the event to the queue.
When the event is eventually removed from the queue it is
processed just like all window events.
When multiple motion events are received for the same win
dow in rapid succession, they are collapsed by default.
This behavior can be controlled with Tk_CollapseMotion
Events. Tk_CollapseMotionEvents always returns the previ
ous value for collapse behavior on the display.
The position argument to Tk_QueueWindowEvent has the same
significance as for Tcl_QueueEvent; see the documentation
for Tcl_QueueEvent for details.
KEYWORDS
- callback, clock, handler, modal timeout, events