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WindowsIdentity Constructor (IntPtr)

Initializes a new instance of the WindowsIdentity class for the user represented by the specified Windows account token.

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

public:
WindowsIdentity(
	IntPtr userToken
)

Parameters

userToken
Type: System::IntPtr

The account token for the user on whose behalf the code is running.

ExceptionCondition
ArgumentException

userToken is 0.

-or-

userToken is duplicated and invalid for impersonation.

SecurityException

The caller does not have the correct permissions.

-or-

A Win32 error occurred.

The following table shows initial property values for an instance of WindowsIdentity.

Property

Initial Value

AuthenticationType

Negotiate

WindowsAccountType

Normal

IsAuthenticated

false

NoteNote:

You can retrieve the token represented by userToken by calling unmanaged code such as the Win32 API LogonUser function. Always release userToken by calling the Win32 API Close function. For more information on calling unmanaged code, see Consuming Unmanaged DLL Functions.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
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