Index: reactos/sdk/include/psdk/ntgdi.h
===================================================================
--- reactos/sdk/include/psdk/ntgdi.h	(revision 73479)
+++ reactos/sdk/include/psdk/ntgdi.h	(working copy)
@@ -156,7 +156,7 @@
     _In_ ULONG cFiles,
     _In_ UINT cjBuf,
     _Out_ LPDWORD pdwBytes,
-    _Out_writes_bytes_(cjBuf) LPVOID pvBuf,
+    _Inout_opt_ LPVOID pvBuf,
     _In_ DWORD iType);
 
 __kernel_entry