GetValue class method

Project: Environment Variables Unit

Unit: PJEnvVars

Class: TPJEnvironmentVars

Applies to: ~>3.0

class function GetValue(const VarName: string): string;

Description

Returns the value of a given environment variable.

Parameters:

• VarName – The name of the environment variable whose value is required.

Returns

• The required value. If the environment variable has no value or does not exist then the empty string is returned.

Important: Because GetValue returns the empty string both for environment variables that exist but have no value and for those that do not exist, you can’t use this method to check if an environment variable exists in the environment block. Use the Exists method for this purpose.