Gx5733GetPortByteDirection

Returns the direction of a port byte.

Gx5733GetPortByteDirection (nHandle, nPort, nByte, bInOut, pnStatus)

Name	Type	Description
nHandle	SHORT	Handle to a GX5733 board.
nPort	SHORT	Digital I/O port numbers are as follow: Digital I/O port numbers 1-3. Port 0 if no I/O module installed.
nByte	SHORT	Port byte number: 0-3, 0 for the port low order byte and 3 for the high order byte.
bInOut	PBOOL	Returned byte direction: 0. (FALSE) - Input. 1. (TRUE) - Output.
pnStatus	PSHORT	Returned status: 0 on success, negative number on failure.

Each digital I/O port is divided to four groups or bytes. Each group contains eight channels and can have its own direction, input or output.

The following example returns the byte direction of port 1, byte 3:

SHORT nStatus;

BOOL bOut;

Gx5733GetPortByteDirection (nHandle, 1, 3, &bOut, nStatus);