XIGetDevFocus.c revision b789ec8a 
1/*
2 * Copyright © 2009 Red Hat, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 */
24
25#include <stdint.h>
26#include <X11/Xlibint.h>
27#include <X11/extensions/XI2proto.h>
28#include <X11/extensions/XInput2.h>
29#include <X11/extensions/extutil.h>
30#include "XIint.h"
31
32Status
33XIGetFocus(Display *dpy, int deviceid, Window *focus_return)
34{
35    xXIGetFocusReq   *req;
36    xXIGetFocusReply reply;
37
38    XExtDisplayInfo *extinfo = XInput_find_display(dpy);
39
40    LockDisplay(dpy);
41    if (_XiCheckExtInit(dpy, XInput_2_0, extinfo) == -1)
42	return (NoSuchExtension);
43
44    GetReq(XIGetFocus, req);
45    req->reqType  = extinfo->codes->major_opcode;
46    req->ReqType  = X_XIGetFocus;
47    req->deviceid = deviceid;
48
49    if (!_XReply(dpy, (xReply*) &reply, 0, xFalse)) {
50        UnlockDisplay(dpy);
51        SyncHandle();
52        return False;
53    }
54
55    *focus_return = reply.focus;
56
57    UnlockDisplay(dpy);
58    SyncHandle();
59    return Success;
60
61}
62
63