typedef struct digirealwaveformat_tag {
        WAVEFORMATEX    wfx;
        WORD            wSamplesPerBlock;
} DIGIREALWAVEFORMAT;

typedef DIGIREALWAVEFORMAT *PDIGIREALWAVEFORMAT;

typedef DIGIREALWAVEFORMAT NEAR *NPDIGIREALWAVEFORMAT;

typedef DIGIREALWAVEFORMAT FAR *LPDIGIREALWAVEFORMAT;