# GetCVIVersion

GetCVIVersion (void);

## Purpose

Returns the version of the LabWindows/CVI Run-time Libraries that you are using.

The value is in the form Nnn, where the N.nn is the version number the About LabWindows/CVI dialog box shows.

For example, for LabWindows/CVI version 5.0, GetCVIVersion returns 500. For version 4.0.1, it returns 401. The values always increase with each new version of LabWindows/CVI.

Do not confuse the return value of GetCVIVersion with the predefined macro _CVI_, which specifies the version of LabWindows/CVI in which the source file is compiled.

## Parameters

None.

## Return Value

Name | Type | Description
versionNum | integer | Version number of LabWindows/CVI or the Run-time Libraries.