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.

Exception Condition
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

System_CAPS_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.

SecurityPermission

for the ability to manipulate the principal object. Associated enumeration: SecurityPermissionFlag.ControlPrincipal.

SecurityPermission

for the ability to access unmanaged code. Associated enumeration: SecurityPermissionFlag.UnmanagedCode.

.NET Framework
Available since 1.1
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