| Platform SDK: Quality of Service |
The TcDeregisterClient function deregisters a client with the Traffic Control Interface (TCI). Before deregistering, a client must delete each installed flow and filter with the TcDeleteFlow and TcDeleteFilter functions, and close all open interfaces with the TcCloseInterface function, respectively.
DWORD TcDeregisterClient( HANDLE ClientHandle );
| Error codes | Description |
|---|---|
| NO_ERROR | The function executed without errors. |
| ERROR_INVALID_HANDLE | Invalid interface handle, or the handle was set to NULL. |
| ERROR_TC_SUPPORTED_OBJECTS_EXIST | Interfaces are still open for this client. all interfaces must be closed to deregister a client. |
Once a client calls TcDeregisterClient, the only traffic control function the client is allowed to call is TcRegisterClient.
Note Use of the TcDeregisterClient function requires administrative privilege.
Windows NT/2000: Requires Windows 2000.
Windows 95/98: Unsupported.
Header: Declared in Traffic.h.
Library: Use Traffic.lib.
TcRegisterClient, TcCloseInterface, TcDeleteFlow, TcDeleteFilter