Tk_CollapseMotionEvents, Tk_QueueWindowEvent — Add a window event to the Tcl event queue
#include <tk.h>
int
Tk_CollapseMotionEvents(display, collapse)
Tk_QueueWindowEvent(eventPtr, position)
- Display *display (in)
-
Display for which to control motion event collapsing.
- int collapse (in)
-
Indicates whether motion events should be collapsed or not.
- XEvent *eventPtr (in)
-
An event to add to the event queue. It is important
that all unused fields of the structure be set to zero.
- Tcl_QueuePosition position (in)
-
Where to add the new event in the queue: TCL_QUEUE_TAIL,
TCL_QUEUE_HEAD, or TCL_QUEUE_MARK.
Tk_QueueWindowEvent places a window event on Tcl's internal 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 window in rapid
succession, they are collapsed by default. This behavior can be controlled
with Tk_CollapseMotionEvents. Tk_CollapseMotionEvents always
returns the previous 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.
callback, clock, handler, modal timeout, events
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