Platform SDK: TAPI

ITStreamControl::CreateStream

Creates a new media stream.

HRESULT CreateStream(
  long lMediaType,
  TERMINAL_DIRECTION td,
  ITStream **ppStream
);

Parameters

lMediaType: [in] Indicates media type for stream.
td: [in] Indicates the TERMINAL_DIRECTION.
ppStream: [out, retval] Pointer to pointer for newly created ITStream interface.

Return Values

Value	Meaning
S_OK	Method succeeded.
E_POINTER	The ppStream parameter is not a valid pointer.
E_OUTOFMEMORY	Insufficient memory exists to perform the operation.
TAPI_E_INVALIDMEDIATYPE	The lMediaType parameter is not a valid media type.
TAPI_E_INVALIDDIRECTION	The td parameter is not a valid terminal direction.
TAPI_E_MAXSTREAMS	The maximum number of streams supported has already been reached.
TAPI_E_NOTSUPPORTED	This operation is not supported.

Remarks

Many MSPs do not support dynamic creation of streams, and simply return TAPI_E_MAXSTREAMS in their implementation of this method. Default streams are automatically available when a call is created, so most applications do not have to use this method.

Requirements

  Windows NT/2000: Requires Windows 2000.
  Version: Requires TAPI 3.0 or later.
  Header: Declared in Tapi3.h.
  Library: Use T3iid.lib.

ITStreamControl::CreateStream

Parameters

Return Values

Remarks

Requirements

See Also