typedef void (*tAxWin3_MessageCallback)(int SourceTID, int Length);
-typedef int (*tAxWin3_WindowMessageHandler)(tHWND Window, int Length, void *Data);
+typedef int (*tAxWin3_WindowMessageHandler)(tHWND Window, int Message, int Length, void *Data);
// --- Connection management
extern void AxWin3_Connect(const char *ServerDesc);