Sensoray 817 - Manual (Page 13)

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S817_ReleaseBuffer
ECODE S817_ReleaseBuffer (int board, int aChan, int bufId, int capType)
Releases a buffer back to the driver. Capture to this buffer is allowed.
board
Index of the board being addressed (1 .. SYS_MAXBOARDS ).
aChan
Index of the input video channel being addressed (1 .. 16).
bufId
Buffer index. See CAP_BUFFER structure.
capType
Type of buffer to be released: bitmap or JPEG. Must be either CAP_JPG or CAP_BMP.
S817_BlockDone
ECODE S817_BlockDone(int board, int to, int *aChan, int *capType)
Waits for the board to capture requested data. It is a blocking function, i.e. it does not
consume CPU time when waiting.
board
Index of the board being addressed (1 .. SYS_MAXBOARDS ).
to
Timeout value in milliseconds. The function returns after this period of time even if
the selected channel is not ready. The return value of the function in this case is non-
zero. If
timeout is set to 0, the function checks the capture status and returns
immediately.
aChan
A pointer to a variable receiving the index of the channel having data. The driver
implements a round-robin algorithm, so that all the channels are fairly reperesented.
capType
A pointer to a variable receiving the type of data availble for a given channel. Can be
CAP_JPG or CAP_BMP , or their logical OR.
S817_SetVideoSwitch
ECODE S817_SetVideoSwitch(int board, int *switchOut)
Controls the analog video crosspoint switch.
board
Index of the board being addressed (1 .. SYS_MAXBOARDS ).
switchOut