typedef struct tagMDICREATESTRUCTW {
    LPCWSTR  szClass;
    LPCWSTR  szTitle;
    HANDLE hOwner;
    int x;
    int y;
    int cx;
    int cy;
    DWORD style;
    LPARAM lParam;        
} MDICREATESTRUCTW, *LPMDICREATESTRUCTW;

typedef MDICREATESTRUCTW MDICREATESTRUCT;