typedef struct tagCaptureParms {
    DWORD       dwRequestMicroSecPerFrame;  
    BOOL        fMakeUserHitOKToCapture;    
    UINT        wPercentDropForError;       
    BOOL        fYield;                     
    DWORD       dwIndexSize;                
    UINT        wChunkGranularity;          
    BOOL        fUsingDOSMemory;            
    UINT        wNumVideoRequested;         
    BOOL        fCaptureAudio;              
    UINT        wNumAudioRequested;         
    UINT        vKeyAbort;                  
    BOOL        fAbortLeftMouse;            
    BOOL        fAbortRightMouse;           
    BOOL        fLimitEnabled;              
    UINT        wTimeLimit;                 
    BOOL        fMCIControl;                
    BOOL        fStepMCIDevice;             
    DWORD       dwMCIStartTime;             
    DWORD       dwMCIStopTime;              
    BOOL        fStepCaptureAt2x;           
    UINT        wStepCaptureAverageFrames;  
    DWORD       dwAudioBufferSize;          
    BOOL        fDisableWriteCache;         
    UINT        AVStreamMaster;             
} CAPTUREPARMS, *PCAPTUREPARMS, FAR *LPCAPTUREPARMS;