- XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
+ if (!XQueryPointer (dpy, c->win, &dummy, &dummy, &di, &di, &nx, &ny, &dui))
+ return;
+ horizcorner = nx < c->w / 2;
+ vertcorner = ny < c->h / 2;
+ XWarpPointer (dpy, None, c->win, 0, 0, 0, 0,
+ horizcorner ? (-c->bw) : (c->w + c->bw -1),
+ vertcorner ? (-c->bw) : (c->h + c->bw -1));