107 lines
3.5 KiB
C
107 lines
3.5 KiB
C
/************************************************************
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Copyright 2006 Peter Hutterer <peter@cs.unisa.edu.au>
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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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/***********************************************************************
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*
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* XIQueryPointer - Query the pointer of an extension input device.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdint.h>
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#include <X11/extensions/XI2proto.h>
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#include <X11/Xlibint.h>
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#include <X11/extensions/XInput2.h>
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#include <X11/extensions/extutil.h>
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#include "XIint.h"
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#define FP1616toDBL(x) ((x) * 1.0 / (1 << 16))
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Bool
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XIQueryPointer(Display *dpy,
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int deviceid,
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Window w,
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Window *root,
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Window *child,
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double *root_x,
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double *root_y,
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double *win_x,
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double *win_y,
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XIButtonState *buttons,
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XIModifierState *mods,
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XIGroupState *group)
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{
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xXIQueryPointerReq *req;
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xXIQueryPointerReply rep;
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XExtDisplayInfo *info = XInput_find_display(dpy);
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LockDisplay(dpy);
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if (_XiCheckExtInit(dpy, XInput_2_0, info) == -1)
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return False;
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GetReq(XIQueryPointer, req);
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req->reqType = info->codes->major_opcode;
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req->ReqType = X_XIQueryPointer;
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req->deviceid = deviceid;
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req->win = w;
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if (!_XReply(dpy, (xReply *)&rep,
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(sizeof(xXIQueryPointerReply) - sizeof(xReply))/4, xFalse)) {
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UnlockDisplay(dpy);
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SyncHandle();
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return False;
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}
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*root = rep.root;
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*child = rep.child;
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*root_x = FP1616toDBL(cvtINT16toInt(rep.root_x));
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*root_y = FP1616toDBL(cvtINT16toInt(rep.root_y));
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*win_x = FP1616toDBL(cvtINT16toInt(rep.win_x));
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*win_y = FP1616toDBL(cvtINT16toInt(rep.win_y));
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mods->base = rep.mods.base_mods;
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mods->latched = rep.mods.latched_mods;
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mods->locked = rep.mods.locked_mods;
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mods->effective = mods->base | mods->latched | mods->locked;
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group->base = rep.group.base_group;
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group->latched = rep.group.latched_group;
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group->locked = rep.group.locked_group;
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group->effective = group->base | group->latched | group->locked;
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buttons->mask_len = rep.buttons_len * 4;
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buttons->mask = malloc(buttons->mask_len);
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if (buttons->mask)
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_XRead(dpy, (char*)buttons->mask, buttons->mask_len);
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UnlockDisplay(dpy);
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SyncHandle();
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return rep.same_screen;
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}
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