[ros-diffs] [greatlrd] 23168: hacking NtGdiDdResetVisrgn so it lest say clip have not change. for now

[greatlrd at svn.reactos.org]

Author: greatlrd
Date: Wed Jul 19 06:14:26 2006
New Revision: 23168

URL: http://svn.reactos.org/svn/reactos?rev=23168&view=rev
Log:
hacking NtGdiDdResetVisrgn so it lest say clip have not change. for now 

Modified:
    trunk/reactos/subsystems/win32/win32k/ntddraw/stubs.c

Modified: trunk/reactos/subsystems/win32/win32k/ntddraw/stubs.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/ntddraw/stubs.c?rev=23168&r1=23167&r2=23168&view=diff
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntddraw/stubs.c (original)
+++ trunk/reactos/subsystems/win32/win32k/ntddraw/stubs.c Wed Jul 19 06:14:26 2006
@@ -338,9 +338,18 @@
     HWND hwnd
 )
 {
-	UNIMPLEMENTED
-
-	return 0;
+	DPRINT1("UNIMPLEMENTED NtGdiDdResetVisrgn \n");
+	/* see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/lowlevelclientsupport/graphics/ddresetvisrgn.asp
+	   for more info, I pasted some part of it here
+	 Clipping can change asynchronously from the point of view of user-mode threads. 
+	 The kernel-mode parts of DirectDraw and Microsoft Windows Graphics Device Interface (GDI) 
+	 maintain a counter that is incremented whenever the clipping list for the entire desktop 
+	 changes. A call to this function records this counter with every existing DirectDraw 
+	 primary surface on the system.
+
+    */
+
+	return TRUE;
 }