Sensoray 811 Windows SDK - Manual (Page 17)

MID811_API int S811_SetVidSize(
MID811_RES eVidSize,
int devid
);
Sets the captured video size (resolution).
Parameters
eVidSize
see header file for supported resolutions.
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_GetVidSize(
int *eVidSize,
int devid
);
Gets the captured video size (resolution).
Parameters
eVidSize
returns pointer to vid size.
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_SetRenderVideo(
BOOL bDisplayVideo,
int devid
);
Turns the preview on and off.
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