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Diffstat (limited to 'src/XGetDCtl.c')
| -rw-r--r-- | src/XGetDCtl.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/src/XGetDCtl.c b/src/XGetDCtl.c new file mode 100644 index 0000000..65c270c --- /dev/null +++ b/src/XGetDCtl.c @@ -0,0 +1,171 @@ +/* $Xorg: XGetDCtl.c,v 1.4 2001/02/09 02:03:50 xorgcvs Exp $ */ + +/************************************************************ + +Copyright 1989, 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. + +Copyright 1989 by Hewlett-Packard Company, Palo Alto, California. + + 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 name of Hewlett-Packard 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. + +********************************************************/ + +/*********************************************************************** + * + * XGetDeviceControl - get the Device control state of an extension device. + * + */ + +#include "XI.h" +#include "XIproto.h" +#include "Xlibint.h" +#include "Xlib.h" +#include "XInput.h" +#include "extutil.h" + +XDeviceControl +*XGetDeviceControl (dpy, dev, control) + register Display *dpy; + XDevice *dev; + int control; + { + int size = 0; + int nbytes, i; + XDeviceControl *Device = NULL; + XDeviceControl *Sav = NULL; + xDeviceState *d = NULL; + xDeviceState *sav = NULL; + xGetDeviceControlReq *req; + xGetDeviceControlReply rep; + XExtDisplayInfo *info = (XExtDisplayInfo *) XInput_find_display (dpy); + + LockDisplay (dpy); + if (_XiCheckExtInit(dpy, XInput_Add_XChangeDeviceControl) == -1) + return ((XDeviceControl *) NoSuchExtension); + + GetReq(GetDeviceControl,req); + req->reqType = info->codes->major_opcode; + req->ReqType = X_GetDeviceControl; + req->deviceid = dev->device_id; + req->control = control; + + if (! _XReply (dpy, (xReply *) &rep, 0, xFalse)) + { + UnlockDisplay(dpy); + SyncHandle(); + return (XDeviceControl *) NULL; + } + if (rep.length > 0) + { + nbytes = (long)rep.length << 2; + d = (xDeviceState *) Xmalloc((unsigned) nbytes); + if (!d) + { + _XEatData (dpy, (unsigned long) nbytes); + UnlockDisplay(dpy); + SyncHandle(); + return (XDeviceControl *) NULL; + } + sav = d; + _XRead (dpy, (char *) d, nbytes); + + switch (d->control) + { + case DEVICE_RESOLUTION: + { + xDeviceResolutionState *r; + + r = (xDeviceResolutionState *) d; + size += sizeof (XDeviceResolutionState) + + (3 * sizeof(int) * r->num_valuators); + break; + } + default: + size += d->length; + break; + } + + Device = (XDeviceControl *) Xmalloc((unsigned) size); + if (!Device) + { + UnlockDisplay(dpy); + SyncHandle(); + return (XDeviceControl *) NULL; + } + Sav = Device; + + d = sav; + switch (control) + { + case DEVICE_RESOLUTION: + { + int *iptr, *iptr2; + xDeviceResolutionState *r; + XDeviceResolutionState *R; + r = (xDeviceResolutionState *) d; + R = (XDeviceResolutionState *) Device; + + R->control = DEVICE_RESOLUTION; + R->length = sizeof (XDeviceResolutionState); + R->num_valuators = r->num_valuators; + iptr = (int *) (R+1); + iptr2 = (int *) (r+1); + R->resolutions = iptr; + R->min_resolutions = iptr + R->num_valuators; + R->max_resolutions = iptr + (2 * R->num_valuators); + for (i=0; i < (3 * R->num_valuators); i++) + *iptr++ = *iptr2++; + break; + } + default: + break; + } + XFree (sav); + } + + UnlockDisplay(dpy); + SyncHandle(); + return (Sav); + } + +void XFreeDeviceControl (control) + XDeviceControl *control; + { + XFree (control); + } |