RuntimeEnvironment Class

Definition

Namespace:

System.Runtime.InteropServices

Assembly:

System.Runtime.InteropServices.dll

Source:

RuntimeEnvironment.cs

Provides a collection of static methods that return information about the common language runtime environment.

public ref class RuntimeEnvironment abstract sealed

public static class RuntimeEnvironment

type RuntimeEnvironment = class

Public Class RuntimeEnvironment

Inheritance

Object

RuntimeEnvironment

Examples

This example shows how to call many of the methods defined by the RuntimeEnvironment class.

using namespace System;
using namespace System::Reflection;
using namespace System::Runtime::InteropServices;

int main()
{
    // Show whether the EXE assembly was loaded from the GAC or from a
    // private subdirectory.
    Console::WriteLine("Did the {0} assembly load from the GAC? {1}",
        Assembly::GetExecutingAssembly(),
        RuntimeEnvironment::FromGlobalAccessCache(
        Assembly::GetExecutingAssembly()));

    // Show the path where the CLR was loaded from.
    Console::WriteLine("Runtime directory: {0}",
        RuntimeEnvironment::GetRuntimeDirectory());

    // Show the CLR's version number.
    Console::WriteLine("System version: {0}",
        RuntimeEnvironment::GetSystemVersion());

    // Show the path of the machine's configuration file.
    Console::WriteLine("System configuration file: {0}",
        RuntimeEnvironment::SystemConfigurationFile);
}

// This code produces the following output.
//
// Did the RuntimeEnvironment, Version=0.0.0.0, Culture=neutral,
// PublicKeyToken=null
// assembly load from the GAC? False
// Runtime directory: C:\WINDOWS\Microsoft.NET\Framework\v2.0.40607\
// System version: v2.0.40607
// System configuration file:
// C:\WINDOWS\Microsoft.NET\Framework\v2.0.40607\config\machine.config

using System;
using System.Reflection;
using System.Runtime.InteropServices;

public sealed class App
{
    static void Main()
    {
        // Show whether the EXE assembly was loaded from the GAC or from a private subdirectory.
        Assembly assem = typeof(App).Assembly;
        Console.WriteLine("Did the {0} assembly load from the GAC? {1}",
           assem, RuntimeEnvironment.FromGlobalAccessCache(assem));

        // Show the path where the CLR was loaded from.
        Console.WriteLine("Runtime directory: {0}", RuntimeEnvironment.GetRuntimeDirectory());

        // Show the CLR's version number.
        Console.WriteLine("System version: {0}", RuntimeEnvironment.GetSystemVersion());

        // Show the path of the machine's configuration file.
        Console.WriteLine("System configuration file: {0}", RuntimeEnvironment.SystemConfigurationFile);
    }
}

// This code produces the following output.
//
// Did the RuntimeEnvironment, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
// assembly load from the GAC? False
// Runtime directory: C:\WINDOWS\Microsoft.NET\Framework\v2.0.40607\
// System version: v2.0.40607
// System configuration file: C:\WINDOWS\Microsoft.NET\Framework\v2.0.40607\config\
// machine.config

Imports System.Reflection
Imports System.Runtime.InteropServices

Public NotInheritable Class App
    Shared Sub Main()
        ' Show whether the EXE assembly was loaded from the GAC or from a private subdirectory.
        Dim assem As Assembly = GetType(App).Assembly
        Console.WriteLine("Did the {0} assembly load from the GAC? {1}", 
                          assem, RuntimeEnvironment.FromGlobalAccessCache(assem))
        ' Show the path where the CLR was loaded from.
        Console.WriteLine("Runtime directory: {0}", RuntimeEnvironment.GetRuntimeDirectory())
        ' Show the CLR's version number.
        Console.WriteLine("System version: {0}", RuntimeEnvironment.GetSystemVersion())
        ' Show the path of the machine's configuration file.
        Console.WriteLine("System configuration file: {0}", RuntimeEnvironment.SystemConfigurationFile)
    End Sub
End Class

' This code produces the following output.
'
' Did the RuntimeEnvironment, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null
' assembly load from the GAC? False
' Runtime directory: C:\WINDOWS\Microsoft.NET\Framework\v2.0.40607\
' System version: v2.0.40607
' System configuration file: C:\WINDOWS\Microsoft.NET\Framework\v2.0.40607\config\
' machine.config

Properties

SystemConfigurationFile

Obsolete. Gets the path to the system configuration file.

Methods

FromGlobalAccessCache(Assembly)	Tests whether the specified assembly is loaded in the global assembly cache.
GetRuntimeDirectory()	Returns the directory where the common language runtime is installed.
GetRuntimeInterfaceAsIntPtr(Guid, Guid)	Obsolete. Returns the specified interface on the specified class.
GetRuntimeInterfaceAsObject(Guid, Guid)	Obsolete. Returns an instance of a type that represents a COM object by a pointer to its IUnknown interface.
GetSystemVersion()	Gets the version number of the common language runtime that's running the current process.