(w32_read_socket): Erase update rect on WM_PAINT, so

no need to process WM_ERASEBKGND.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/w32term.c b/src/w32term.c
index 350e07675af..e0f840999a0 100644
--- a/src/w32term.c
+++ b/src/w32term.c
@@ -2394,6 +2394,7 @@ w32_read_socket (sd, bufp, numchars, waitp, expected)
     {
       switch (msg.msg.message)
         {
+#if 0
         case WM_ERASEBKGND:
           f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
           if (f)
@@ -2401,6 +2402,7 @@ w32_read_socket (sd, bufp, numchars, waitp, expected)
               win32_clear_rect (f, NULL, &msg.rect);
             }
           break;
+#endif
         case WM_PAINT:
           {
             f = x_window_to_frame (dpyinfo, msg.msg.hwnd);
@@ -2415,12 +2417,15 @@ w32_read_socket (sd, bufp, numchars, waitp, expected)
                   }
                 else
                   {
+                    /* WM_ERASEBKGND is only generated (and processed)
+                       in response to WM_PAINT, so emulate that
+                       behaviour here. */
+                    win32_clear_rect (f, NULL, &msg.rect);
                     dumprectangle (f,
                                    msg.rect.left,
                                    msg.rect.top,
                                    msg.rect.right-msg.rect.left+1,
                                    msg.rect.bottom-msg.rect.top+1);
-                      
                   }
               }
           }