Display the unknown class name in error message

Modified: trunk/reactos/subsys/win32k/ntuser/class.c

--- trunk/reactos/subsys/win32k/ntuser/class.c	2005-11-24 14:34:41 UTC (rev 19528)
+++ trunk/reactos/subsys/win32k/ntuser/class.c	2005-11-24 14:34:44 UTC (rev 19529)
@@ -124,7 +124,7 @@

 
    if (!NT_SUCCESS(Status))
    {

-      DPRINT1("Failed to lookup class atom!\n");

+      DPRINT1("Failed to lookup class atom (ClassName '%S')!\n", ClassName);

       return FALSE;
    }