PUSER_MESSAGE_QUEUE FASTCALL MsqCreateMessageQueue(PTHREADINFO);
VOID FASTCALL MsqDestroyMessageQueue(PTHREADINFO);
INIT_FUNCTION NTSTATUS NTAPI MsqInitializeImpl(VOID);
-BOOLEAN FASTCALL co_MsqDispatchOneSentMessage(PUSER_MESSAGE_QUEUE MessageQueue);
+BOOLEAN FASTCALL co_MsqDispatchOneSentMessage(_In_ PUSER_MESSAGE_QUEUE MessageQueue);
NTSTATUS FASTCALL
co_MsqWaitForNewMessages(PUSER_MESSAGE_QUEUE MessageQueue, PWND WndFilter,
UINT MsgFilterMin, UINT MsgFilterMax);