ITSubStreamControl::CreateSubStream method (tapi3if.h)
The CreateSubStream method creates a substream.
Syntax
HRESULT CreateSubStream(
[out] ITSubStream **ppSubStream
);
Parameters
[out] ppSubStream
Pointer to ITSubStream interface created.
Return value
This method can return one of these values.
| Value | Meaning |
|---|---|
|
Method succeeded. |
|
The ppSubStream parameter is not a valid pointer. |
|
Insufficient memory exists to perform the operation. |
|
Substream cannot be created because the maximum number of streams has already been reached. |
Remarks
Many MSPs do not support dynamic creation of substreams, and simply return TAPI_E_MAXSTREAMS in their implementation of this method.
TAPI calls the AddRef method on the ITSubStream interface returned by ITSubStreamControl::CreateSubStream. The application must call Release on the ITSubStream interface to free resources associated with it.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | tapi3if.h (include Tapi3.h) |