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DuplicateToken info  Overview  Group

The DuplicateToken function creates a new access token that duplicates one already in existence.

BOOL DuplicateToken(

    HANDLE ExistingTokenHandle,

// handle to token to duplicate


// impersonation level

    PHANDLE DuplicateTokenHandle 

// handle to duplicated token



Identifies an access token opened with TOKEN_DUPLICATE access.
Specifies a SECURITY_IMPERSONATION_LEVEL enumerated type that supplies the impersonation level of the new token.
Pointer to a variable that receives the handle of the duplicate token. This handle has TOKEN_IMPERSONATE and TOKEN_QUERY access to the new token.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.


The DuplicateToken function creates an impersonation token, which you can use in functions such as SetThreadToken and ImpersonateLoggedOnUser. The token created by DuplicateToken cannot be used in the CreateProcessAsUser function, which requires a primary token. To create a token that you can pass to CreateProcessAsUser, use the DuplicateTokenEx function.

See Also

CreateProcessAsUser, DuplicateTokenEx, ImpersonateLoggedOnUser, SECURITY_IMPERSONATION_LEVEL, SetThreadToken 

file: /Techref/os/win/api/win32/func/src/f18_11.htm, 3KB, , updated: 2000/4/7 12:19, local time: 2024/7/20 08:49,

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