skip Gtk to avoid pointless deprecation warnings

xpra/x11/bindings/keyboard.pyx

@@ -1140,3 +1140,14 @@ cdef class X11KeyboardBindingsInstance(X11CoreBindingsInstance):
         XQueryPointer(self.display, root_window, &root, &child,
                       &root_x, &root_y, &win_x, &win_y, &mask)
         return root_x, root_y
+
+    def query_mask(self):
+        self.context_check("query_mask")
+        cdef Window root_window = XDefaultRootWindow(self.display)
+        cdef Window root, child
+        cdef int root_x, root_y
+        cdef int win_x, win_y
+        cdef unsigned int mask
+        XQueryPointer(self.display, root_window, &root, &child,
+                      &root_x, &root_y, &win_x, &win_y, &mask)
+        return mask

xpra/x11/server/core.py

@@ -945,7 +945,8 @@ def do_process_mouse_common(self, proto, device_id: int, wid: int, pointer, prop
         mouselog("do_process_mouse_common%s", (proto, device_id, wid, pointer, props))
         if self.readonly:
             return False
-        pos = self.root_window.get_pointer()[-3:-1]
+        with xsync:
+            pos = X11Keyboard.query_pointer()
         if (pointer and pos != pointer[:2]) or self.input_devices=="xi":
             with xswallow:
                 self._move_pointer(device_id, wid, pointer, props)

xpra/x11/server/keyboard_config.py

@@ -575,7 +575,7 @@ def get_current_mask(self) -> list:
         root = get_default_root_window()
         if not root:
             return []
-        current_mask = root.get_pointer()[-1]
+        current_mask = X11Keyboard.query_mask()
         return mask_to_names(current_mask, self.modifier_map)
 
     def make_keymask_match(self, modifier_list, ignored_modifier_keycode=None, ignored_modifier_keynames=None) -> None: