xref: /xsrc/external/mit/libXi/dist/src/XIGetDevFocus.c

/*
 * Copyright © 2009 Red Hat, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
 *
 */

#include <stdint.h>
#include <X11/Xlibint.h>
#include <X11/extensions/XI2proto.h>
#include <X11/extensions/XInput2.h>
#include <X11/extensions/extutil.h>
#include "XIint.h"

Status
XIGetFocus(Display *dpy, int deviceid, Window *focus_return)
{
    xXIGetFocusReq   *req;
    xXIGetFocusReply reply;

    XExtDisplayInfo *extinfo = XInput_find_display(dpy);

    LockDisplay(dpy);
    if (_XiCheckExtInit(dpy, XInput_2_0, extinfo) == -1)
	return (NoSuchExtension);

    GetReq(XIGetFocus, req);
    req->reqType  = extinfo->codes->major_opcode;
    req->ReqType  = X_XIGetFocus;
    req->deviceid = deviceid;

    if (!_XReply(dpy, (xReply*) &reply, 0, xFalse)) {
        UnlockDisplay(dpy);
        SyncHandle();
        return False;
    }

    *focus_return = reply.focus;

    UnlockDisplay(dpy);
    SyncHandle();
    return Success;

}