C# Environment GetEnvironmentVariables (EnvironmentVariableTarget)

Description

Environment GetEnvironmentVariables(EnvironmentVariableTarget) retrieves all environment variable names and their values from the current process, or from the Windows operating system registry key for the current user or local machine.

Syntax

Environment.GetEnvironmentVariables(EnvironmentVariableTarget) has the following syntax.

public static IDictionary GetEnvironmentVariables(
  EnvironmentVariableTarget target
)

Parameters

Environment.GetEnvironmentVariables(EnvironmentVariableTarget) has the following parameters.

• target - One of the EnvironmentVariableTarget values.

Returns

Environment.GetEnvironmentVariables(EnvironmentVariableTarget) method returns A dictionary that contains all environment variable names and their values from the source specified by the target parameter; otherwise, an empty dictionary if no environment variables are found.

Example

The following example gets environment variables.

using System;/*from   w  ww.  j av a 2s  . c  o m*/
using System.Collections;
using Microsoft.Win32;

class Sample 
{
    public static void Main(){
        string str = Environment.GetEnvironmentVariable("A_GETSET_ENVAR_SAMPLE",
             EnvironmentVariableTarget.Process);
        Console.WriteLine(str);
    }

}

The code above generates the following result.