diff options
Diffstat (limited to 'nx-X11/lib/X11/GetMoEv.c')
-rw-r--r-- | nx-X11/lib/X11/GetMoEv.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/nx-X11/lib/X11/GetMoEv.c b/nx-X11/lib/X11/GetMoEv.c new file mode 100644 index 000000000..ad9c77277 --- /dev/null +++ b/nx-X11/lib/X11/GetMoEv.c @@ -0,0 +1,81 @@ +/* + +Copyright 1986, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + +*/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include "Xlibint.h" +#include <limits.h> + +XTimeCoord *XGetMotionEvents( + register Display *dpy, + Window w, + Time start, + Time stop, + int *nEvents) /* RETURN */ +{ + xGetMotionEventsReply rep; + register xGetMotionEventsReq *req; + XTimeCoord *tc = NULL; + LockDisplay(dpy); + GetReq(GetMotionEvents, req); + req->window = w; +/* XXX is this right for all machines? */ + req->start = start; + req->stop = stop; + if (!_XReply (dpy, (xReply *)&rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + return (NULL); + } + + if (rep.nEvents && (rep.nEvents < (INT_MAX / sizeof(XTimeCoord)))) + tc = Xmalloc(rep.nEvents * sizeof(XTimeCoord)); + if (tc == NULL) { + /* server returned either no events or a bad event count */ + *nEvents = 0; + _XEatDataWords (dpy, rep.length); + } + else + { + register XTimeCoord *tcptr; + unsigned int i; + xTimecoord xtc; + + *nEvents = (int) rep.nEvents; + for (i = rep.nEvents, tcptr = tc; i > 0; i--, tcptr++) { + _XRead (dpy, (char *) &xtc, SIZEOF (xTimecoord)); + tcptr->time = xtc.time; + tcptr->x = cvtINT16toShort (xtc.x); + tcptr->y = cvtINT16toShort (xtc.y); + } + } + + UnlockDisplay(dpy); + SyncHandle(); + return (tc); +} + |