3909: extern int XGrabButton(
        #if NeedFunctionPrototypes

    50: XGrabButton(
            Display*            display,

   244:   XGetZoomHints
          XGrabButton
          XGrabKey

   962:   XGetWindowAttributes
          XGrabButton
          XGrabKey

  1051:    ++i )
          XGrabButton( display(), AnyButton,
              modifier | mods[ i ],

  1095:   // first grab all modifier combinations
          XGrabButton( display(), AnyButton, AnyModifier, wrapperId(), false,
              ButtonPressMask,

   529:   for (size_t cnt = 0; cnt < length; ++cnt) {
            XGrabButton(_display->XDisplay(), button, modifiers | MaskList[cnt],
                        grab_window, owner_events, event_mask, pointer_mode,

   138:   for (int i = 0; i < 8; i++) {
              XGrabButton(display, button, mod | (i & 1 ? capsmod : 0) |
                          (i & 2 ? nummod : 0) | (i & 4 ? scrollmod : 0),

   390:   natsource.setButton(btn_number, mod_mask, to_btn_mask, to_mod_mask);
          XGrabButton(xdisplay, btn_number, mod_mask,
                      xrootwin, True,  // owner_events

   239:   XGetZoomHints
          XGrabButton
          XGrabKey

  1503:   if (!xgrab)
              XGrabButton(x11Display(), AnyButton, AnyModifier, winId(),
                          true, ButtonPressMask, GrabModeSync, GrabModeAsync,

  1298:   XGrabButton(dpy,
                  Button1,