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- /* $XConsortium: xungrdev.c,v 1.6 89/12/02 15:21:45 rws Exp $ */
-
- /************************************************************
- Copyright (c) 1989 by Hewlett-Packard Company, Palo Alto, California, and the
- Massachusetts Institute of Technology, Cambridge, Massachusetts.
-
- All Rights Reserved
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the names of Hewlett-Packard or MIT not be
- used in advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
- ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
- HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
- ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
- WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
- ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- SOFTWARE.
-
- ********************************************************/
-
- /***********************************************************************
- *
- * Request to release a grab of an extension device.
- *
- */
-
- #define NEED_EVENTS
- #define NEED_REPLIES
- #include "X.h" /* for inputstr.h */
- #include "Xproto.h" /* Request macro */
- #include "inputstr.h" /* DeviceIntPtr */
- #include "windowstr.h" /* window structure */
- #include "XIproto.h"
-
- extern int IReqCode;
- extern int BadDevice;
- extern void (* ReplySwapVector[256]) ();
- DeviceIntPtr LookupDeviceIntRec();
-
- /***********************************************************************
- *
- * Handle requests from a client with a different byte order.
- *
- */
-
- int
- SProcXUngrabDevice(client)
- register ClientPtr client;
- {
- register char n;
-
- REQUEST(xUngrabDeviceReq);
- swaps(&stuff->length, n);
- swapl(&stuff->time, n);
- return(ProcXUngrabDevice(client));
- }
-
- /***********************************************************************
- *
- * Release a grab of an extension device.
- *
- */
-
- int
- ProcXUngrabDevice(client)
- register ClientPtr client;
- {
- DeviceIntPtr dev;
- GrabPtr grab;
- TimeStamp time;
-
- REQUEST(xUngrabDeviceReq);
- REQUEST_SIZE_MATCH(xUngrabDeviceReq);
-
- dev = LookupDeviceIntRec (stuff->deviceid);
- if (dev == NULL)
- {
- SendErrorToClient(client, IReqCode, X_UngrabDevice, 0, BadDevice);
- return Success;
- }
- grab = dev->grab;
-
- time = ClientTimeToServerTime(stuff->time);
- if ((CompareTimeStamps(time, currentTime) != LATER) &&
- (CompareTimeStamps(time, dev->grabTime) != EARLIER) &&
- (grab) && SameClient(grab, client))
- (*dev->DeactivateGrab)(dev);
- return Success;
- }
-