The LookupPrivilegeValue function retrieves the locally unique identifier (LUID) used on a specified system to locally represent the specified privilege name.

Syntax

BOOL WINAPI LookupPrivilegeValue(
  __in_opt  LPCTSTR lpSystemName,
  __in      LPCTSTR lpName,
  __out     PLUID lpLuid
);

Parameters

lpSystemName [in, optional]

A pointer to a null-terminated string that specifies the name of the system on which the privilege name is retrieved. If a null string is specified, the function attempts to find the privilege name on the local system.

lpName [in]

A pointer to a null-terminated string that specifies the name of the privilege, as defined in the Winnt.h header file. For example, this parameter could specify the constant, SE_SECURITY_NAME, or its corresponding string, "SeSecurityPrivilege".

lpLuid [out]

A pointer to a variable that receives the LUID by which the privilege is known on the system specified by the lpSystemName parameter.

Return Value

If the function succeeds, the function returns nonzero.

If the function fails, it returns zero. To get extended error information, call GetLastError.

Remarks

The LookupPrivilegeValue function supports only the privileges specified in the Defined Privileges section of Winnt.h. For a list of values, see Privilege Constants.

Examples

For an example that uses this function, see Enabling and Disabling Privileges.

Requirements

See Also

Access Control

Basic Access Control Functions

LookupPrivilegeDisplayName

LookupPrivilegeName

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Build date: 9/11/2009