(win32_wnd_proc): No need to forward WM_ERASEBKGND to main thread.

diff --git a/src/w32fns.c b/src/w32fns.c
index 9385d4da0c6603bb16a92f8bcc3eee20ff7b6c26..0700173659541c1e3b4db9492856d7636c14266b 100644 (file)
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -2930,10 +2930,15 @@ win32_wnd_proc (hwnd, msg, wParam, lParam)
   switch (msg) 
     {
     case WM_ERASEBKGND:
+      /* This is (always?) generated by BeginPaint, so there is no gain
+        in forwarding this message to the main thread - it can simply
+        erase the background before repainting. */
+#if 0
       enter_crit ();
       GetUpdateRect (hwnd, &wmsg.rect, FALSE);
       leave_crit ();
       my_post_msg (&wmsg, hwnd, msg, wParam, lParam);
+#endif
       return 1;
     case WM_PALETTECHANGED:
       /* ignore our own changes */