FCAppBuildNumber (FirstClass internal functions) Purpose Returns the current .fcx build number (as an integer value) of a specified application, provided that it is loaded on the server. Build numbers are built into .fcx-compiled applications when they are entered on the Project Attributes form. This form is accessed by clicking Options on the Project tab in FCAS project manager. Syntax FCAppBuildNumber [(ApplicationName)] ApplicationName If this argument is not supplied, FCAppBuildNumber returns the build number of the calling application. If this application is unknown, FCAppBuildNumber returns an invalid procedure call error.