Gx6616GetChannel

Return the state of the relay in the specified group, row and column.

Gx6616GetChannel (nHandle, nGroup, nRow, nCoulmn, pnState, pnStatus)

Name	Type	Comments
nHandle	SHORT	Handle to a GX6616 board.
nGroup	SHORT	Group number 0-5 corresponds to groups A-F.
nRow	SHORT	Row number 0 or 1.
nColumn	SHORT	Column number 0 - 15.
pnState	LPLONG	Returned state of the relay. 1 for close and 0 for open.
pnStatus	LPSHORT	Returned status: 0 on success, negative number on failure.

Use the Gx6616GetRow function to retrieve the state of all relays in the specified row and group.

The following example checks whether relay at group C, row 0, relay 3 is closed:

Gx6616GetChannel(nHandle, 2, 0, 3, &nState, &nStatus);

if (nClose==1)

printf("C0-3 relay is closed");

else

printf("C0-3 relay is open");