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NTEmacs 21.2.50 crashes


From: Tak Ota
Subject: NTEmacs 21.2.50 crashes
Date: Sat, 23 Feb 2002 09:18:23 -0800 (PST)

2002-02-22  Jason Rumney  <address@hidden>

        * w32fns.c (mouse_move_timer, mouse_button_timer): Initialize.
        (menu_free_timer): New variable.
        (MENU_FREE_ID, MENU_FREE_DELAY): New constants.
        (w32_wnd_proc) <WM_TIMER>: Handle menu_free_timer.
        <WM_EXITMENULOOP>: Delay before freeing menu.  Do nothing if a
        menu command is in progress.
        <WM_COMMAND>: Set the menu_command_in_progress flag.  Kill
        any menu_free_timer that is running.

In the function w32_wnd_proc, WM_TIMER case seems to be missing an
initialization of f.  It crashes by referring to uninitialized f.

*** w32fns.c.orig       Fri Feb 22 21:22:59 2002
--- w32fns.c    Sat Feb 23 09:11:30 2002
***************
*** 4779,4785 ****
        {
          KillTimer (hwnd, menu_free_timer);
          menu_free_timer = 0;
!         if (!f->output_data.w32->menu_command_in_progress)
            {
              /* Free memory used by owner-drawn and help-echo strings.  */
              w32_free_menu_strings (hwnd);
--- 4779,4786 ----
        {
          KillTimer (hwnd, menu_free_timer);
          menu_free_timer = 0;
!         f = x_window_to_frame (dpyinfo, hwnd);
!         if (f && !f->output_data.w32->menu_command_in_progress)
            {
              /* Free memory used by owner-drawn and help-echo strings.  */
              w32_free_menu_strings (hwnd);

-Tak



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