# inpd

long inpd (short portNumber);

## Purpose

Reads a double word (long int) from the specified port.

| Note inpd requires the LabWindows/CVI low-level support driver. LabWindows/CVI loads the driver at startup if it is on disk. You can check whether LabWindows/CVI loaded the driver at startup by calling CVILowLevelSupportDriverLoaded.

## Parameters

Input
Name | Type | Description
portNumber | short | The port from which to read the double word.

## Return Value

Name | Type | Description
wordReceived | long | The double word (long int) read from the port.