Gx5731GetPortBit

Reads a port bit value.

Gx5731GetPortBit (nHandle, nPort, nBit, pucValue, pnStatus)

Name	Type	Description
nHandle	SHORT	Handle to a GX5731 board.
nPort	SHORT	Digital I/O port numbers are as follow: Digital I/O port numbers 3-6. Any port number 0 to 2 that has no I/O module installed.
nBit	SHORT	Port bit number: 0-31. Where 0 is used for low order bit and 31 for the high order bit.
pucValue	PBYTE	Returned channel value: 0 for low state and 1 for hi state.
pnStatus	PSHORT	Returned status: 0 on success, negative number on failure.

Use the Gx5731SetPortBit to write data to the port bit when in Output direction.

The following example reads port 1, bit 30 value:

SHORT nStatus;

BYTE ucValue;

Gx5731GetPort (nHandle, 1, 30, &ucValue, &nStatus);