From: Richard M. Stallman <rms@gnu.org>
Date: Fri, 14 Jun 1996 20:54:55 +0000 (+0000)
Subject: (w32_read_socket): Erase update rect on WM_PAINT, so
X-Git-Tag: archive/raspbian/1%29.2+1-2+rpi1^2~5^2~83636
X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/www.github.com/%22bookmarks:///%22http:/www.example.com/cgi/%22https:/www.github.com/%22bookmarks:/?a=commitdiff_plain;h=70204e221dd4e6314f7b1c2366f34d010ed7152e;p=emacs.git

(w32_read_socket): Erase update rect on WM_PAINT, so
no need to process WM_ERASEBKGND.
---

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);
-		      
 		  }
 	      }
 	  }