Sensoray 811 Windows SDK - Manual (Page 14)

int devid
);
Stops the recording.
Parameters
devid
device id in the system (use 0 for first channel with a single board installed).
Returns
0 on success, negative value if error (see mid811types.h for error codes list).
MID811_API int S811_PauseRecord(
int devid
);
Pauses the recording. Preview will also be paused if viewing video.
Parameters
devid
device id in the system (use 0 for first channel with a single board installed).
Returns
0 on success, negative value if error (see mid811types.h for error codes list).
MID811_API int S811_ResumeRecord(
int devid
);
Resumes the recording. Preview will also be resumed if viewing video.
Parameters
devid
device id in the system (use 0 for first channel with a single board installed).
Returns
0 on success, negative value if error (see mid811types.h for error codes list).
MID811_API int S811_SetLevels(
int param,
int value,
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