pinvoke.net: Edit: advapi32.DuplicateToken

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Summary: The DuplicateTokenEx function creates a new access token that duplicates an existing token. This function can create either a primary token or an impersonation token.

!!!!C# Signature:
 [DllImport("advapi32.dll", CharSet=CharSet.Auto, SetLastError=true)]
 public extern static bool DuplicateTokenEx(
	IntPtr hExistingToken,
	uint dwDesiredAccess,
	ref SECURITY_ATTRIBUTES lpTokenAttributes,
	SECURITY_IMPERSONATION_LEVEL ImpersonationLevel,
	TOKEN_TYPE TokenType,
	out IntPtr phNewToken );

!!!!VB Signature:
    Declare Auto Function DuplicateTokenEx Lib "advapi32.dll" ( _
        ByVal ExistingTokenHandle As IntPtr, _
        ByVal dwDesiredAccess As UInt32, _
        ByRef lpThreadAttributes As SECURITY_ATTRIBUTES, _
        ByVal ImpersonationLevel As Integer, _
        ByVal TokenType As Integer, _
        ByRef DuplicateTokenHandle As System.IntPtr) As Boolean
!!!!User-Defined Types:
[SECURITY_ATTRIBUTES]
[SECURITY_IMPERSONATION_LEVEL]
[TOKEN_TYPE]

!!!!Alternative Managed API:
Do you know one?  Please contribute it!

!!!!Notes:
None.

!!!!Tips & Tricks:
Please add some!

Since you can't use UInt32 constants in VB.NET, here is one way of passing in a value for dwDesiredAccess

Const GRANTED_ALL As String = "10000000"

ret = DuplicateTokenEx(Token, UInt32.Parse(GRANTED_ALL, System.Globalization.NumberStyles.HexNumber), sa, SecurityImpersonation, TokenType, DupedToken)

!!!!Sample Code:
Please add some!

Documentation: DuplicateTokenEx@msdn on MSDN