Platform SDK: Quality of Service

TcSetInterface

The TcSetInterface function sets individual parameters for a given interface.

DWORD TcSetInterface(
  HANDLE IfcHandle,
  PGUID pGuidParam,
  ULONG BufferSize,
  PVOID Buffer 
);

IfcHandle: [in] Handle associated with the interface to be set. This handle is obtained by a previous call to the TcOpenInterface function.
pGuidParam: [in] Pointer to the globally unique identifier (GUID) that corresponds to the parameter to be set. A list of available GUIDs can be found in GUID.
BufferSize: [in] Size of the client-provided buffer.
Buffer: [in] Pointer to a client-provided buffer. Buffer must contain the value to which the traffic control parameter provided in pGuidParam should be set.

Error codes	Description
NO_ERROR	The function executed without errors.
ERROR_INVALID_HANDLE	Invalid interface handle.
ERROR_INVALID_PARAMETER	Invalid parameter.
ERROR_NOT_SUPPORTED	Setting the GUID for the provided interface is not supported.
ERROR_WMI_INSTANCE_NOT_FOUND	The GUID is not available.
ERROR_WMI_GUID_NOT_FOUND	The device did not register for this GUID.

Note Use of the TcSetInterface function requires administrative privilege. The list of GUIDS that can be set is explained in GUID.

  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Unsupported.
  Header: Declared in Traffic.h.
  Library: Use Traffic.lib.