1 files changed, 5 insertions, 0 deletions

diff --git a/src/w32fns.c b/src/w32fns.c
index 34450fd5219..c116c51603b 100644
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -3250,6 +3250,11 @@ w32_wnd_proc (hwnd, msg, wParam, lParam)
         BOOL up;
         int button;
 
+        /* Ignore middle and extra buttons as long as the menu is active.  */
+        f = x_window_to_frame (dpyinfo, hwnd);
+        if (f && f->output_data.w32->menubar_active)
+          return 0;
+
         if (parse_button (msg, HIWORD (wParam), &button, &up))
           {
             if (up) ReleaseCapture ();