87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/* $Xorg: GetMoEv.c,v 1.4 2001/02/09 02:03:33 xorgcvs Exp $ */
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/*
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Copyright 1986, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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*/
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#define NEED_REPLIES
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "Xlibint.h"
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XTimeCoord *XGetMotionEvents(dpy, w, start, stop, nEvents)
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register Display *dpy;
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Time start, stop;
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Window w;
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int *nEvents; /* RETURN */
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{
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xGetMotionEventsReply rep;
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register xGetMotionEventsReq *req;
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XTimeCoord *tc = NULL;
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long nbytes;
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LockDisplay(dpy);
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GetReq(GetMotionEvents, req);
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req->window = w;
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/* XXX is this right for all machines? */
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req->start = start;
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req->stop = stop;
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if (!_XReply (dpy, (xReply *)&rep, 0, xFalse)) {
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UnlockDisplay(dpy);
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SyncHandle();
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return (NULL);
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}
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if (rep.nEvents) {
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if (! (tc = (XTimeCoord *)
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Xmalloc( (unsigned)
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(nbytes = (long) rep.nEvents * sizeof(XTimeCoord))))) {
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_XEatData (dpy, (unsigned long) nbytes);
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UnlockDisplay(dpy);
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SyncHandle();
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return (NULL);
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}
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}
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*nEvents = rep.nEvents;
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nbytes = SIZEOF (xTimecoord);
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{
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register XTimeCoord *tcptr;
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register int i;
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xTimecoord xtc;
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for (i = rep.nEvents, tcptr = tc; i > 0; i--, tcptr++) {
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_XRead (dpy, (char *) &xtc, nbytes);
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tcptr->time = xtc.time;
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tcptr->x = cvtINT16toShort (xtc.x);
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tcptr->y = cvtINT16toShort (xtc.y);
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}
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}
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UnlockDisplay(dpy);
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SyncHandle();
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return (tc);
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}
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