ntdll: Fix the LPC_MESSAGE structure definition for 64-bit.

dlls/ntdll/nt.c

@@ -691,8 +691,8 @@ NTSTATUS WINAPI NtRequestWaitReplyPort(
     TRACE("\tVirtualRangesOffset = %u\n",pLpcMessageIn->VirtualRangesOffset);
     TRACE("\tClientId.UniqueProcess = %p\n",pLpcMessageIn->ClientId.UniqueProcess);
     TRACE("\tClientId.UniqueThread  = %p\n",pLpcMessageIn->ClientId.UniqueThread);
-    TRACE("\tMessageId           = %u\n",pLpcMessageIn->MessageId);
-    TRACE("\tSectionSize         = %u\n",pLpcMessageIn->SectionSize);
+    TRACE("\tMessageId           = %lu\n",pLpcMessageIn->MessageId);
+    TRACE("\tSectionSize         = %lu\n",pLpcMessageIn->SectionSize);
     TRACE("\tData                = %s\n",
       debugstr_an((const char*)pLpcMessageIn->Data,pLpcMessageIn->DataSize));
   }

dlls/ntdll/tests/port.c

@@ -62,8 +62,8 @@ typedef struct _LPC_MESSAGE
   USHORT MessageType;
   USHORT VirtualRangesOffset;
   CLIENT_ID ClientId;
-  ULONG MessageId;
-  ULONG SectionSize;
+  ULONG_PTR MessageId;
+  ULONG_PTR SectionSize;
   UCHAR Data[ANYSIZE_ARRAY];
 } LPC_MESSAGE, *PLPC_MESSAGE;
 

include/winternl.h

@@ -1803,8 +1803,8 @@ typedef struct _LPC_MESSAGE {
   USHORT MessageType;
   USHORT VirtualRangesOffset;
   CLIENT_ID ClientId;
-  ULONG MessageId;
-  ULONG SectionSize;
+  ULONG_PTR MessageId;
+  ULONG_PTR SectionSize;
   UCHAR Data[ANYSIZE_ARRAY];
 } LPC_MESSAGE, *PLPC_MESSAGE;