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124 lines
3.4 KiB
C
124 lines
3.4 KiB
C
/* $Xorg: GetPntMap.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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/* $XFree86: xc/lib/X11/GetPntMap.c,v 1.7 2003/11/17 22:20:07 dawes Exp $ */
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#define NEED_REPLIES
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#include "Xlibint.h"
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#ifdef MIN /* some systems define this in <sys/param.h> */
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#undef MIN
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#endif
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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int XGetPointerMapping (dpy, map, nmaps)
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register Display *dpy;
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unsigned char *map; /* RETURN */
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int nmaps;
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{
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unsigned char mapping[256]; /* known fixed size */
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long nbytes, remainder = 0;
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xGetPointerMappingReply rep;
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register xReq *req;
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LockDisplay(dpy);
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GetEmptyReq(GetPointerMapping, req);
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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 0;
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}
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nbytes = (long)rep.length << 2;
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/* Don't count on the server returning a valid value */
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if (nbytes > sizeof mapping) {
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remainder = nbytes - sizeof mapping;
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nbytes = sizeof mapping;
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}
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_XRead (dpy, (char *)mapping, nbytes);
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/* don't return more data than the user asked for. */
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if (rep.nElts) {
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memcpy ((char *) map, (char *) mapping,
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MIN((int)rep.nElts, nmaps) );
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}
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if (remainder)
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_XEatData(dpy, (unsigned long)remainder);
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UnlockDisplay(dpy);
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SyncHandle();
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return ((int) rep.nElts);
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}
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KeySym *
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XGetKeyboardMapping (Display *dpy,
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#if NeedWidePrototypes
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unsigned int first_keycode,
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#else
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KeyCode first_keycode,
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#endif
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int count,
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int *keysyms_per_keycode)
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{
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long nbytes;
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unsigned long nkeysyms;
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register KeySym *mapping = NULL;
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xGetKeyboardMappingReply rep;
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register xGetKeyboardMappingReq *req;
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LockDisplay(dpy);
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GetReq(GetKeyboardMapping, req);
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req->firstKeyCode = first_keycode;
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req->count = count;
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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 (KeySym *) NULL;
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}
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nkeysyms = (unsigned long) rep.length;
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if (nkeysyms > 0) {
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nbytes = nkeysyms * sizeof (KeySym);
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mapping = (KeySym *) Xmalloc ((unsigned) nbytes);
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nbytes = nkeysyms << 2;
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if (! mapping) {
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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 (KeySym *) NULL;
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}
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_XRead32 (dpy, (long *) mapping, nbytes);
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}
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*keysyms_per_keycode = rep.keySymsPerKeyCode;
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UnlockDisplay(dpy);
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SyncHandle();
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return (mapping);
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}
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