Tk_CollapseMotionEvents(3tk)

Tk_QueueWindowEvent(3)Tk Library ProceduresTk_QueueWindowEvent(3)

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NAME

     Tk_CollapseMotionEvents, Tk_QueueWindowEvent - Add a  window
     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 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.
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DESCRIPTION

     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

Tk                      Last change: 7.5                        1

Tk_QueueWindowEvent(3)Tk Library ProceduresTk_QueueWindowEvent(3)

     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

Tk                      Last change: 7.5                        2