Microsoft Speech SDK SAPI 5.1

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SPAUDIOSTATUS

typedef struct SPAUDIOSTATUS
{
    long            cbFreeBuffSpace;
    ULONG           cbNonBlockingIO;
    SPAUDIOSTATE    State;
    ULONGLONG       CurSeekPos;
    ULONGLONG       CurDevicePos;
    DWORD           dwReserved1;
    DWORD           dwReserved2;   
} SPAUDIOSTATUS;

Members

cbFreeBuffSpace

Size, in bytes, of free space for reading and/or writing in the audio object.

cbNonBlockingIO

The amount of data which can be read from or written to a device without blocking.

State

The state (of type SPAUDIOSTATE) of the audio device.

CurSeekPos

The current seek position, in bytes, within the audio stream. This is the position in the stream where the next read or write will be performed.

CurDevicePos

The current read position, in bytes, of the device. This is the position in the stream where the device is currently reading or writing. For readable streams, this value will always be greater than or equal to CurSeekPos. For writable streams, this value will always be less than or equal to CurSeekPos.

dwReserved1

Reserved for future expansion.

dwReserved2

Reserved for future expansion.