avoid crashes: just don't try to do cursors on win32 (buggy win32 bui…

…ld?)

git-svn-id: https://xpra.org/svn/Xpra/trunk@7625 3bb7dfac-3a0b-4e04-842a-767bc560f471

src/xpra/client/gtk3/client.py

@@ -73,6 +73,11 @@ def get_tray_menu_helper_classes(self):
     def make_clipboard_helper(self):
         return None
 
+    def set_windows_cursor(self, windows, cursor_data):
+        #avoid buggy win32 version:
+        if not sys.platform.startswith("win"):
+            GTKXpraClient.set_windows_cursor(self, windows, cursor_data)
+
 
     def get_root_window(self):
         return Gdk.Screen.get_default().get_root_window()