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OpenProcessToken info  Overview  Group

The OpenProcessToken function opens the access token associated with a process.

BOOL OpenProcessToken(

    HANDLE ProcessHandle,

// handle to process

    DWORD DesiredAccess,

// desired access to process

    PHANDLE TokenHandle 

// pointer to handle of open access token

   );

Parameters

ProcessHandle
Identifies the process whose access token is opened.
DesiredAccess
Specifies an access mask that specifies the requested types of access to the access token. These requested access types are compared with the token’s discretionary access-control list (ACL) to determine which accesses are granted or denied. The following access rights have been defined for access tokens.

Value

Meaning

TOKEN_ADJUST_DEFAULT

Required to change the default ACL, primary group, or owner of an access token.

TOKEN_ADJUST_GROUPS

Required to change the groups specified in an access token.

TOKEN_ADJUST_PRIVILEGES

Required to change the privileges specified in an access token.

TOKEN_ALL_ACCESS

Combines the STANDARD_RIGHTS_REQUIRED standard access rights and all individual access rights for tokens.

TOKEN_ASSIGN_PRIMARY

Required to attach a primary token to a process in addition to the SE_CREATE_TOKEN_NAME privilege.

TOKEN_DUPLICATE

Required to duplicate an access token.

TOKEN_EXECUTE

Combines the STANDARD_RIGHTS_EXECUTE standard access rights and the TOKEN_IMPERSONATE access right.

TOKEN_IMPERSONATE

Required to attach an impersonation access token to a process.

TOKEN_QUERY

Required to query the contents of an access token.

TOKEN_QUERY_SOURCE

Required to query the source of an access token.

TOKEN_READ

Combines the STANDARD_RIGHTS_READ standard access rights and the TOKEN_QUERY access right.

TOKEN_WRITE

Combines the STANDARD_RIGHTS_WRITE standard access rights and the TOKEN_ADJUST_PRIVILEGES, TOKEN_ADJUST_GROUPS, and TOKEN_ADJUST_DEFAULT access rights.

TokenHandle
Points to a handle identifying the newly-opened access token when the function returns.

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.

See Also

AdjustTokenGroups, AdjustTokenPrivileges, GetTokenInformation, OpenThreadToken, SetTokenInformation 


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