(w32_wnd_proc) <WM_MOUSEMOVE>: Ignore mouse movements if a menu is active

on this frame.

2 files changed, 13 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 85acd1c19c1..e91028e54e2 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2006-04-08  Eli Zaretskii  <eliz@gnu.org>
+
+        * w32fns.c (w32_wnd_proc) <WM_MOUSEMOVE>: Ignore mouse movements
+        if a menu is active on this frame.
+
 2006-04-08  Dan Nicolaescu  <dann@ics.uci.edu>
 
         * lisp.h (report_file_error): Mark as NO_RETURN.
diff --git a/src/w32fns.c b/src/w32fns.c
index 1cc3dc2800c..093739d1603 100644
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -3297,6 +3297,14 @@ w32_wnd_proc (hwnd, msg, wParam, lParam)
       return (msg == WM_XBUTTONDOWN || msg == WM_XBUTTONUP);
 
     case WM_MOUSEMOVE:
+      /* Ignore mouse movements as long as the menu is active.  These
+         movements are processed by the window manager anyway, and
+         it's wrong to handle them as if they happened on the
+         underlying frame.  */
+      f = x_window_to_frame (dpyinfo, hwnd);
+      if (f && f->output_data.w32->menubar_active)
+        return 0;
+
       /* If the mouse has just moved into the frame, start tracking
          it, so we will be notified when it leaves the frame.  Mouse
          tracking only works under W98 and NT4 and later. On earlier