XSendEvent(3X11)        COMMAND REFERENCE        XSendEvent(3X11)



NAME
     XSendEvent, XDisplayMotionBufferSize, XGetMotionEvents -
     send events

SYNOPSIS
     Status XSendEvent(display, w, propagate, event_mask,
     event_send)
           Display *display;
           Window w;
           Bool propagate;
           long event_mask;
           XEvent *event_send;

     unsigned long XDisplayMotionBufferSize(display)
             Display *display;

     XTimeCoord *XGetMotionEvents(display, w, start, stop,
     nevents_return)
           Display *display;
           Window w;
           Time start, stop;
           int *nevents_return;

ARGUMENTS
     display   Specifies the connection to the X server.

     event_mask
               Specifies the event mask.

     event_send
               Specifies a pointer to the event that is to be
               sent.

     nevents_return
               Returns the number of events from the motion
               history buffer.

     propagate Specifies a Boolean value.

     start
     stop      Specify the time interval in which the events are
               returned from the motion history buffer.  You can
               pass a timestamp or CurrentTime.  PointerWindow,

     w         Specifies the window the window the event is to be
               sent to,.

DESCRIPTION
     The XSendEvent function identifies the destination window,
     determines which clients should receive the specified
     events, and ignores any active grabs.  This function
     requires you to pass an event mask.  For a discussion of the



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XSendEvent(3X11)        COMMAND REFERENCE        XSendEvent(3X11)



     valid event mask names, see section 8.3.  This function uses
     the w argument to identify the destination window as
     follows:

     •    If w is PointerWindow, the destination window is the
          window that contains the pointer.

     •    If w is InputFocus and if the focus window contains the
          pointer, the destination window is the window that
          contains the pointer; otherwise, the destination window
          is the focus window.

     To determine which clients should receive the specified
     events, XSendEvent uses the propagate argument as follows:

     •    If event_mask is the empty set, the event is sent to
          the client that created the destination window.  If
          that client no longer exists, no event is sent.

     •    If propagate is False, the event is sent to every
          client selecting on destination any of the event types
          in the event_mask argument.

     •    If propagate is True and no clients have selected on
          destination any of the event types in event-mask, the
          destination is replaced with the closest ancestor of
          destination for which some client has selected a type
          in event-mask and for which no intervening window has
          that type in its do-not-propagate-mask. If no such
          window exists or if the window is an ancestor of the
          focus window and InputFocus was originally specified as
          the destination, the event is not sent to any clients.
          Otherwise, the event is reported to every client
          selecting on the final destination any of the types
          specified in event_mask.

     The event in the XEvent structure must be one of the core
     events or one of the events defined by an extension (or a
     BadValue error results) so that the X server can correctly
     byte-swap the contents as necessary. The contents of the
     event are otherwise unaltered and unchecked by the X server
     except to force send_event to True in the forwarded event
     and to set the serial number in the event correctly.

     XSendEvent returns zero if the conversion to wire protocol
     format failed and returns nonzero otherwise.  XSendEvent can
     generate BadValue and BadWindow errors.

     The server may retain the recent history of the pointer
     motion and do so to a finer granularity than is reported by
     MotionNotify events.  The XGetMotionEvents function makes
     this history available.



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XSendEvent(3X11)        COMMAND REFERENCE        XSendEvent(3X11)



     The XGetMotionEvents function returns all events in the
     motion history buffer that fall between the specified start
     and stop times, inclusive, and that have coordinates that
     lie within the specified window (including its borders) at
     its present placement.  If the start time is later than the
     stop time or if the start time is in the future, no events
     are returned.  If the stop time is in the future, it is
     equivalent to specifying CurrentTime.  XGetMotionEvents can
     generate a BadWindowe error.

DIAGNOSTICS
     BadValue  Some numeric value falls outside the range of
               values accepted by the request.  Unless a specific
               range is specified for an argument, the full range
               defined by the argument's type is accepted.  Any
               argument defined as a set of alternatives can
               generate this error.

     BadWindow A value for a Window argument does not name a
               defined Window.

SEE ALSO
     XIfEvent(3x11), XNextEvent(3x11), XPutBackEvent(3x11)
     Xlib - C Language X Interface































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