imaqIORead Method

Syntax

imaqIORead id, signalType, signalNumber, value

Purpose

Reads general-purpose digital inputs from the static I/O of the NI-IMAQ I/O device.

Parameters

id As IMAQIO_SESSION

The ID of the session to read from.

signalType As IMAQIOSignalType

The type of signal to read from.

signalNumber As Long

The line number of the signal to read from.

value As IMAQIOSignalState

(Output Parameter) The signal state read from the NI-IMAQ I/O device.

Return Value

This function returns 0 on success. On failure, this function returns an error code. For information about the error code, call imaqIOGetErrorTextVB.