ITcUserManager

The interface ITcUserManager allows access to the TwinCAT User Manager. The TwinCAT User Manager is based on the Windows NT security system. An important feature of the Windows NT security system is the option of either providing or withholding privileges for each operating system object (e.g. hard disk, file, network, …). Furthermore the users, user groups and their privileges can be propagated across the network.

Methods in Vtable sequence
IUnknown Methods	Description
QueryInterface	Returns a pointer to the interface requested.
AddRef	Increments the reference counter.
Release	Decrements the reference counter.
IDispatch Methods	Description
GetTypeInfoCount	Supplies the number of "type information" interfaces, that an object offers. (0 or 1).
GetTypeInfo	Gets the type information for an object.
GetIDsOfNames	Connects names of methods with optional arguments with a corresponding set of DISPIDs.
Invoke	Offers access to properties and methods of an object.

ITcUserManager Methods	Description
CreateUserAccount	Creates a new user account.
CreateUserAccountDlg	Dialogue for generation of a new user account.
ImpersonateUser	The invoking thread impersonates the user denoted by name and password.
ImpersonateUserDlg	Dialogue with password query for impersonation of a user.
RevertToSelf	A previous impersonation is cancelled.
UserIsMemberOf	Checks whether the invoking thread is a member of the desired user group.
CreateProcessAsUser	Starts a process with the desired user account.
CreateProcessAsUserDlg	Dialogue for the start of a process with specified user account.
UserIsAdmin	Checks whether the invoking thread belongs to the administrators’ group.
UserName	Property for display of the current user name.
UserEnumLocalGroups	Returns the user groups of a user.
RemoveUserAccount	Removes a user account.
EnumLocalGroups	Returns the locally defined user groups.
EnumLocalUsers	Returns the locally defined users.

Further Information