PlatformID Enumeration
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PlatformID Enumeration

 

Identifies the operating system, or platform, supported by an assembly.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

[SerializableAttribute]
[ComVisibleAttribute(true)]
public enum PlatformID

Member nameDescription
MacOSX

The operating system is Macintosh.

Unix

The operating system is Unix.

Win32NT

The operating system is Windows NT or later.

Win32S

The operating system is Win32s. Win32s is a layer that runs on 16-bit versions of Windows to provide access to 32-bit applications.

Win32Windows

The operating system is Windows 95 or Windows 98.

WinCE

The operating system is Windows CE.

Xbox

The development platform is Xbox 360.

Use the Environment.OSVersion and OperatingSystem.Platform properties to obtain the PlatformID enumeration for the currently executing operating system or development platform. Use the PlatformID enumeration to help determine whether the current operating system or development platform supports your application.

You can use the underlying integer value of each PlatformID enumeration member, as shown in the table, as the PlatformId argument for the SignTool.exe (Sign Tool) utility.

Member

Underlying value

Win32S

0

Win32Windows

1

Win32NT

2

WinCE

3

Unix

4

Xbox

5

MacOSX

6

The following example demonstrates using the PlatformID class to identify the currently executing operating system.

// This example demonstrates the PlatformID enumeration.
using System;

class Sample 
{
    public static void Main() 
    {
    string msg1 = "This is a Windows operating system.";
    string msg2 = "This is a Unix operating system.";
    string msg3 = "ERROR: This platform identifier is invalid.";

// Assume this example is run on a Windows operating system.

    OperatingSystem os = Environment.OSVersion;
    PlatformID     pid = os.Platform;
    switch (pid) 
        {
        case PlatformID.Win32NT:
        case PlatformID.Win32S:
        case PlatformID.Win32Windows:
        case PlatformID.WinCE:
            Console.WriteLine(msg1);
            break;
        case PlatformID.Unix:
            Console.WriteLine(msg2);
            break;
        default:
            Console.WriteLine(msg3);
            break;
        }
    }
}
/*
This example produces the following results:

This is a Windows operating system.
*/

.NET Framework
Available since 1.1
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
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