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436 lines
20 KiB
436 lines
20 KiB
//*********************************************************************
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//* Microsoft Internet Explorer **
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//* Copyright (c) Microsoft Corporation. All rights reserved. **
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//*********************************************************************
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#ifndef _MSLUAPI_H_
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#define _MSLUAPI_H_
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#ifdef USER_SETTINGS_IMPLEMENTED
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/************************************************************************
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IUserSettings interface
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This interface is used to manipulate the settings for a particular component,
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corresponding to a local user account. An IUserSettings interface may be
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obtained by CLSID or name, or through enumeration; in both cases, this is
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relative to a particular user.
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Member functions, other than IUnknown:
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GetCLSID(CLSID *pclsidOut)
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Returns the CLSID identifying the component. May be GUID_NULL if no
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CLSID is defined for the component.
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GetName(LPSTR pbBuffer, UINT cbBuffer)
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Returns a unique name identifying the component. This may be used
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instead of a CLSID if the component provider does not wish to provide
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a COM server to help administer the settings.
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GetDisplayName(LPSTR pbBuffer, UINT cbBuffer)
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Returns a user-friendly name for the component, suitable for presentation
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to the user.
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QueryKey(HKEY *phkeyOut)
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Returns a registry key where the component stores settings for the
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specified user. The key is owned by the interface and must not be
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closed by the application using RegCloseKey, otherwise changes will
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not be propagated correctly.
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((((
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OpenKey(HKEY *phkeyOut, DWORD fdwAccess)
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Returns a registry key where the component stores settings for the
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specified user. The key MUST be closed using IUserSettings::CloseKey
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so that changes will be propagated correctly. fdwAccess indicates
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the type of access desired; valid values include GENERIC_READ and
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GENERIC_WRITE.
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CloseKey(HKEY hKey)
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Closes a registry key obtained via IUserSettings::OpenKey.
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Lock(BOOL fLock)
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Locks or unlocks the settings for updates. Attempting to lock the
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settings will fail if they are already locked. Locking the settings
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does not, however, affect any of the other member functions
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))))
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************************************************************************/
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DECLARE_INTERFACE_(IUserSettings, IUnknown)
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{
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// *** IUnknown methods ***
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STDMETHOD(QueryInterface) (THIS_ REFIID riid, LPVOID * ppvObj) PURE;
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STDMETHOD_(ULONG,AddRef) (THIS) PURE;
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STDMETHOD_(ULONG,Release) (THIS) PURE;
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STDMETHOD(GetCLSID) (THIS_ CLSID *pclsidOut) PURE;
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STDMETHOD(GetName) (THIS_ LPSTR pbBuffer, LPDWORD pcbBuffer) PURE;
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STDMETHOD(GetDisplayName) (THIS_ LPSTR pbBuffer, LPDWORD pcbBuffer) PURE;
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STDMETHOD(QueryKey) (THIS_ HKEY *phkeyOut) PURE;
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};
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#endif /* USER_SETTINGS_IMPLEMENTED */
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/************************************************************************
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IUser interface
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This interface is used to manipulate a local user account. It allows
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various operations to be performed on a particular user. To obtain one
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of these interfaces, the companion interface IUserDatabase must be
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used -- its AddUser, GetUser, and GetCurrentUser member functions all
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return IUser objects, as does IEnumUsers::Next.
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In all descriptions here, "the user" refers to the user which this
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ILocalUser object describes. "The current user" means the user who
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is currently logged on at the workstation.
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If the current user is a supervisor, all functions are allowed. Otherwise,
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a more limited set of member functions is available if the IUser object
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corresponds to the current user. If the current user is not a supervisor
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and the IUser object refers to a different user, a still more limited set
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of functions is allowed.
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Member functions, other than IUnknown:
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GetName(LPSTR pbBuffer, UINT cbBuffer)
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Returns the user's logon name.
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GetProfileDirectory(LPSTR pbBuffer, UINT cbBuffer)
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Returns the user's local profile directory (e.g., C:\WINDOWS\PROFILES\gregj).
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May fail if the user is the default user (doesn't really have a profile
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directory as such).
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IsSupervisor()
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Returns whether the user is a supervisor or not. This is not a generic
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property because it's actually based on the presence of security info
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in the user's PWL (at least on win95).
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SetSupervisorPrivilege(BOOL fMakeSupervisor, LPCSTR pszSupervisorPassword)
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Grants or revokes supervisor privilege for the user. Only supervisors
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can grant or revoke that privilege, of course. If pszSupervisorPassword
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is not NULL, it is used to determine whether the current user is a
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supervisor. If it is NULL, then the current user's password cache is
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used instead. This allows making any user into a supervisor without
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the current user being one.
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MakeTempSupervisor(BOOL fMakeSupervisor, LPCSTR pszSupervisorPassword)
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Grants or revokes supervisor privilege for the user, but only for the
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lifetime of this IUser object. As soon as the object is destroyed,
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the user is no longer considered a supervisor, and in fact other IUser
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objects currently in existence which refer to the same user will not
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indicate him as a supervisor.
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Note that MakeTempSupervisor(FALSE) only revokes temporary-supervisor
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privilege granted by MakeTempSupervisor(TRUE). If the user still has
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the supervisor password in his PWL, he will still be considered a
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supervisor.
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AppearsSupervisor()
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Returns whether or not the user should appear as a supervisor in a list
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of users. This allows querying this property on each user for display
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purposes without taking the large performance hit to locate each user's
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PWL, open it up, get the supervisor key out, and validate it. Instead,
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a registry value under the user's key is used to maintain this value.
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It should NOT be used to determine whether the user has permission to
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do something, because the simple registry value is not as secure.
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Authenticate(LPCSTR pszPassword)
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Attempts to authenticate the user using the given password. Returns
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S_OK if the password is correct for the user, or an error otherwise.
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No user interface is displayed by this function.
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ChangePassword(LPCSTR pszOldPassword, LPCSTR pszNewPassword)
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Attempts to change the user's password from the given old password
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to the given new password. Returns an error code indicating success
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or failure. If the current user is a supervisor, the old password
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may be NULL, in which case the supervisor's credentials are used to
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get the password via other means.
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GetPasswordCache(LPCSTR pszPassword, LPHPWL phOut)
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Returns a handle to the user's password cache, suitable for use with
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the MSPWL32.DLL APIs. May fail, of course, if password caching is
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disabled.
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LoadProfile(LPHKEY phkeyUser)
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Loads the user's profile into the registry and returns a handle to the
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root key. The current user can always load his own profile (just returns
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HKEY_CURRENT_USER); to load other users' profiles, the current user must
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be a supervisor. IUser::UnloadProfile() should always be called when the
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caller is done playing with the user's profile.
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UnloadProfile(HKEY hkeyUser)
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Unloads the user's profile from the registry if possible, and closes the
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key handle returned by IUser::LoadProfile. If the specified user is the
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current user, this function does nothing.
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GetComponentSettings(REFCLSID clsidComponent, LPCSTR pszName,
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IUnknown **ppOut, DWORD fdwAccess)
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CURRENTLY NOT IMPLEMENTED
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Returns an IUserSettings interface which can be used to access the
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user's settings for a particular component. Either clsidComponent or
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pszName may be used to refer to the component whose settings are to be
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accessed. If pszName is not NULL, it takes precedence over clsidComponent.
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fdwAccess specifies whether the caller wants read or write access to the
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settings. If the component's settings are restricted and the current user
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is not a supervisor, only GENERIC_READ access will be allowed;
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GENERIC_WRITE will fail.
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EnumerateComponentSettings(IEnumUnknown **ppOut, DWORD fdwAccess)
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CURRENTLY NOT IMPLEMENTED
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Returns an IEnumUnknown interface which can be used to enumerate all
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components which have settings recorded for the user. fdwAccess
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specifies the desired access, read or write. If the current user
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is not a supervisor and the caller requests write access, the enumerator
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will not return any components which do not permit such access.
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************************************************************************/
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DECLARE_INTERFACE_(IUser, IUnknown)
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{
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// *** IUnknown methods ***
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STDMETHOD(QueryInterface) (THIS_ REFIID riid, LPVOID * ppvObj) PURE;
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STDMETHOD_(ULONG,AddRef) (THIS) PURE;
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STDMETHOD_(ULONG,Release) (THIS) PURE;
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STDMETHOD(GetName) (THIS_ LPSTR pbBuffer, LPDWORD pcbBuffer) PURE;
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STDMETHOD(GetProfileDirectory) (THIS_ LPSTR pbBuffer, LPDWORD pcbBuffer) PURE;
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STDMETHOD(IsSupervisor) (THIS) PURE;
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STDMETHOD(SetSupervisorPrivilege) (THIS_ BOOL fMakeSupervisor, LPCSTR pszSupervisorPassword) PURE;
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STDMETHOD(MakeTempSupervisor) (THIS_ BOOL fMakeSupervisor, LPCSTR pszSupervisorPassword) PURE;
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STDMETHOD(AppearsSupervisor) (THIS) PURE;
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STDMETHOD(Authenticate) (THIS_ LPCSTR pszPassword) PURE;
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STDMETHOD(ChangePassword) (THIS_ LPCSTR pszOldPassword, LPCSTR pszNewPassword) PURE;
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STDMETHOD(GetPasswordCache) (THIS_ LPCSTR pszPassword, LPHANDLE phOut) PURE;
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STDMETHOD(LoadProfile) (THIS_ HKEY *phkeyUser) PURE;
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STDMETHOD(UnloadProfile) (THIS_ HKEY hkeyUser) PURE;
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STDMETHOD(GetComponentSettings) (THIS_ REFCLSID clsidComponent,
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LPCSTR pszName, IUnknown **ppOut,
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DWORD fdwAccess) PURE;
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STDMETHOD(EnumerateComponentSettings) (THIS_ IEnumUnknown **ppOut,
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DWORD fdwAccess) PURE;
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};
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/************************************************************************
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IUserProfileInit interface
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This interface is a helper for IUserDatabase::Install and IUserDatabase::Create.
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It allows the client of those functions to perform initialization of a new
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user's profile before and after the new user's per-user folders are set up.
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Member functions, other than IUnknown:
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PreInitProfile(HKEY hkeyUser, LPCSTR pszProfileDir)
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Called when the user's profile has been created, but no per-user folders
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have been created or initialized yet. Here the implementer can add keys to
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the user's profile which will affect the initialization of those per-user
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folders. hkeyUser is the root of the user's profile, which would be
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HKEY_CURRENT_USER if the user were currently logged on.
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PostInitProfile(HKEY hkeyUser, LPCSTR pszProfileDir)
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Called after the user's per-user folders have been created and initialized.
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Here the implementer can add keys to the user's profile which will control
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roaming of per-user folders, without causing the IUserDatabase profile
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cloning code to want to initialize those folders from their default
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locations.
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************************************************************************/
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DECLARE_INTERFACE_(IUserProfileInit, IUnknown)
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{
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// *** IUnknown methods ***
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STDMETHOD(QueryInterface) (THIS_ REFIID riid, LPVOID * ppvObj) PURE;
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STDMETHOD_(ULONG,AddRef) (THIS) PURE;
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STDMETHOD_(ULONG,Release) (THIS) PURE;
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STDMETHOD(PreInitProfile) (THIS_ HKEY hkeyUser, LPCSTR pszProfileDir) PURE;
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STDMETHOD(PostInitProfile) (THIS_ HKEY hkeyUser, LPCSTR pszProfileDir) PURE;
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};
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/************************************************************************
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IUserDatabase interface
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This interface is used to manage the local user database as a whole. Any
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activities which deal with the list of users in any way are done through
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this interface; operations which deal with the properties (other than the
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name) of an existing user are done through IUser.
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Member functions, other than IUnknown:
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Install(LPCSTR pszSupervisorName, LPCSTR pszSupervisorPassword,
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LPCSTR pszRatingsPassword, IUserProfileInit *pInit)
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Installs the user settings subsystem. This includes creating an account
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for the supervisor. A separate member function is necessary for doing
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this because all the others would insist that the current user already
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be a supervisor. The pInit object (optional, may be NULL) is called
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back to allow the installer to do initialization of the profile being
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created, before and after its per-user files are copied.
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AddUser(LPCSTR pszName, IUser *pSourceUser, IUserProfileInit *pInit,
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IUser **ppOut)
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Creates a new user on the system. This includes creating a profile
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for the user. It does not, however, include creating a password list
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file. IUser::ChangePassword can be used to configure the password
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for the user. An IUser object is returned to the caller so that the
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caller can configure the properties of the user. This function will
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fail if the current user is not a supervisor. The caller can optionally
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specify a user account to be cloned. The pInit object (optional, may be
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NULL) is called back to allow the installer to do initialization of the
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profile being created, before and after its per-user files are copied.
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GetUser(LPCSTR pszName, IUser **ppOut)
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Gets an IUser object corresponding to the specified user. The current
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user need not be a supervisor to call this function, and any user's
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name may be specified. The IUser interface will control what a non-
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supervisor can and cannot do to the user object.
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GetSpecialUser(DWORD nSpecialUserCode, IUser **ppOut)
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Gets an IUser object corresponding to a special particular user.
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Current values for nSpecialUserCode include GSU_CURRENT, meaning
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the currently logged on user, and GSU_DEFAULT, meaning the default
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user identity (i.e., the identity used when nobody is logged on,
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also used as a template when creating new identities).
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GetCurrentUser(IUser **ppOut)
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Gets an IUser object corresponding to the currently logged on user.
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Shorthand for GetSpecialUser(GSU_CURRENT, ppOut).
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SetCurrentUser(IUser *pUser)
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Sets this IUserDatabase object's idea of who the current user is.
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The user must have previously been authenticated. This user object
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is used for all checks which, for example, determine whether the
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"current user" is a supervisor, or whether a user can access his
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or her own settings, etc. SetCurrentUser does not AddRef the IUser
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object passed.
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DeleteUser(LPCSTR pszName)
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Deletes the profile and password cache for the specified user,
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effectively destroying that user's identity. This function may
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only be called if the current user is a supervisor. Any existing
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IUser objects which refer to the user are no longer useful, but
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still must be destroyed in the ordinary way (Release()).
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RenameUser(LPCSTR pszOldName, LPCSTR pszNewName)
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Changes the username of a user. This function may only be called
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if the current user is a supervisor.
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EnumUsers(IEnumUnknown **ppOut)
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Returns an IEnumUnknown object which the caller can use to enumerate
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the local users on the system.
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Authenticate(HWND hwndOwner, DWORD dwFlags, LPCSTR pszName, LPCSTR pszPassword,
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IUser **ppOut)
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Attempts to authenticate a user. dwFlags specifies whether or not
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to prompt for credentials, and whether or not non-supervisors are
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acceptable. If no dialog is to be displayed by the API, then the
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pszName and pszPassword parameters are used instead. If the credentials
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are authenticated succcessfully, S_OK is returned. The ppOut parameter,
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if not NULL, is filled with a pointer to an IUser object describing the
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user who was authenticated, in case the caller cares to find out about
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who typed in their name and password.
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The dwFlags parameter specifies whether UI will be displayed by the
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function, and whether or not the credentials will be cached in memory
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for use at the next logon.
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InstallComponent(REFCLSID clsidComponent, LPCSTR pszName, DWORD dwFlags)
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CURRENTLY NOT IMPLEMENTED
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Installs a component into the settings database, so that it will appear
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in the settings UI. clsidComponent or pszName can be used to refer to
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the component being installed; use of a CLSID is preferable because
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then the component can provide server code which renders the settings
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UI for that component, and knows how to initialize the settings for a
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new user.
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The only bit currently defined for dwFlags is:
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SETTINGS_NS_CAN_WRITE: Non-supervisors can change their own settings
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for this component.
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A component's settings for the current user can always be read, at least
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programmatically -- there is no point in storing settings which can only
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be accessed if the current user is a supervisor. If non-supervisors
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should not be shown the UI for restricted settings (even a read-only UI),
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that decision can be made at the UI level.
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InstallComponent fails if the current user is not a supervisor.
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RemoveComponent(REFCLSID clsidComponent, LPCSTR pszName)
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CURRENTLY NOT IMPLEMENTED
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Removes a component from the settings database, so that it will no longer
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appear in the settings UI. This also removes this component's settings
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from all user identities.
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RemoveComponent fails if the current user is not a supervisor.
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InstallWizard(HWND hwndParent)
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Runs the wizard that switches to multiuser mode.
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AddUserWizard(HWND hwndParent)
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Runs the wizard that adds a new user, invoking the go-multiuser wizard
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if necessary.
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UserCPL(HWND hwndParent)
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Invokes the general user management UI as seen in Control panel, invoking
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the go-multiuser wizard if necessary.
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************************************************************************/
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DECLARE_INTERFACE_(IUserDatabase, IUnknown)
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{
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// *** IUnknown methods ***
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STDMETHOD(QueryInterface) (THIS_ REFIID riid, LPVOID * ppvObj) PURE;
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STDMETHOD_(ULONG,AddRef) (THIS) PURE;
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STDMETHOD_(ULONG,Release) (THIS) PURE;
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STDMETHOD(Install) (THIS_ LPCSTR pszSupervisorName, LPCSTR pszSupervisorPassword,
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LPCSTR pszRatingsPassword, IUserProfileInit *pInit) PURE;
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STDMETHOD(AddUser) (THIS_ LPCSTR pszName, IUser *pSourceUser,
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IUserProfileInit *pInit, IUser **ppOut) PURE;
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STDMETHOD(GetUser) (THIS_ LPCSTR pszName, IUser **ppOut) PURE;
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STDMETHOD(GetSpecialUser) (THIS_ DWORD nSpecialUserCode, IUser **ppOut) PURE;
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STDMETHOD(GetCurrentUser) (THIS_ IUser **ppOut) PURE;
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STDMETHOD(SetCurrentUser) (THIS_ IUser *pUser) PURE;
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STDMETHOD(DeleteUser) (THIS_ LPCSTR pszName) PURE;
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STDMETHOD(RenameUser) (THIS_ LPCSTR pszOldName, LPCSTR pszNewName) PURE;
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STDMETHOD(EnumUsers) (THIS_ IEnumUnknown **ppOut) PURE;
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STDMETHOD(Authenticate) (THIS_ HWND hwndOwner, DWORD dwFlags,
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LPCSTR pszName, LPCSTR pszPassword,
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IUser **ppOut) PURE;
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STDMETHOD(InstallComponent) (THIS_ REFCLSID clsidComponent, LPCSTR pszName,
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DWORD dwFlags) PURE;
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STDMETHOD(RemoveComponent) (THIS_ REFCLSID clsidComponent, LPCSTR pszName) PURE;
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STDMETHOD(InstallWizard) (THIS_ HWND hwndParent) PURE;
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STDMETHOD(AddUserWizard) (THIS_ HWND hwndParent) PURE;
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STDMETHOD(UserCPL) (THIS_ HWND hwndParent) PURE;
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};
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// codes for IUserDatabase::GetSpecialUser
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const DWORD GSU_CURRENT = 0; // current user
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const DWORD GSU_DEFAULT = 1; // default user profile
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// flags for IUserDatabase::Authenticate
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const DWORD LUA_DIALOG = 0x00000001; // display dialog to get credentials
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// otherwise use pszName, pszPassword
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const DWORD LUA_SUPERVISORONLY = 0x00000002; // authenticate supervisors only
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const DWORD LUA_FORNEXTLOGON = 0x00000004; // cache credentials for next logon
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// flags for IUserDatabase::InstallComponent
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const DWORD SETTINGS_NS_CAN_WRITE = 0x01; // non-supervisors can change their own settings
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#endif // _MSLUAPI_H_
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