Retrieves the value of an environment variable from the current process or from the Windows operating system registry key for the current user or local machine.
Syntax
Parameters
- variable
- target
Returns
The value of the environment variable specified by the variable and target parameters, or null if the environment variable is not found.
Remarks
The target parameter specifies whether the environment variable is retrieved from the current process or from the Windows operating system registry key for the current user or local machine.
Environment variable names are not case-sensitive.
To retrieve all environment variables along with their values, call the Environment.GetEnvironmentVariables method.
Requirements
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 2.0.0.0, 4.0.0.0
Since: .NET 2.0
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 2.0.0.0, 4.0.0.0
Since: .NET 2.0