typedef struct tagMCI_OVLY_OPEN_PARMSW {
    DWORD_PTR   dwCallback;
    MCIDEVICEID wDeviceID;
    LPCWSTR     lpstrDeviceType;
    LPCWSTR     lpstrElementName;
    LPCWSTR     lpstrAlias;
    DWORD   dwStyle;
    HWND    hWndParent;
} MCI_OVLY_OPEN_PARMSW, *PMCI_OVLY_OPEN_PARMSW, *LPMCI_OVLY_OPEN_PARMSW;

typedef PMCI_OVLY_OPEN_PARMSW PMCI_OVLY_OPEN_PARMS;