[greatlrd] 25786: adding some comment after review how it works in windows. I doing my own syscall in windows 2000 to see how it act and base my knowledges of that to correct some part of win32k dx handling.

Author: greatlrd
Date: Sun Feb 11 18:19:22 2007
New Revision: 25786

URL: http://svn.reactos.org/svn/reactos?rev=25786&view=rev
Log:
adding some comment after review how it works in windows.  I doing my own syscall in windows 2000 to see how it act and base my knowledges of that to correct some part of win32k dx handling.

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

Modified: trunk/reactos/subsystems/win32/win32k/ntddraw/ddraw.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/ntd...
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/ntddraw/ddraw.c (original)
+++ trunk/reactos/subsystems/win32/win32k/ntddraw/ddraw.c Sun Feb 11 18:19:22 2007
@@ -52,6 +52,19 @@
     return TRUE;
 }

+
+/* Documations how it works in windows and what we should do 
+*
+ *  HANDLE NtGdiDdCreateDirectDrawObject(HDC hdc)
+ *
+ *  Use CreateDCW(L”Display”,NULL,NULL,NULL); or some thing  else to create a DC.
+.*
+ *  A NULL DC are not accpect it  return 0 as error
+ *
+ *  How the interal works see msdn and ddk that is egunt inforamtions to figour or see reactos
+ *  source code. ReactOS interal working diffent here what windows does. 
+ */
+
 HANDLE STDCALL 
 NtGdiDdCreateDirectDrawObject(HDC hdc)
 {
@@ -80,7 +93,6 @@

if (hdc == NULL)
         {
-            DPRINT1("FIXME hdc is NULL \n"); 
             return NULL;
         }
     }
@@ -183,6 +195,8 @@
     DPRINT1("DirectDraw return handler 0x%x\n",hDirectDraw); 
     return hDirectDraw;
 }
+
+

BOOL STDCALL 
 NtGdiDdDeleteDirectDrawObject( HANDLE hDirectDrawLocal)