Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

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 CloseHandle function. For more information on calling unmanaged code, see Consuming Unmanaged DLL Functions.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Community Additions

ADD
Show:
© 2015 Microsoft