IAMStreamSelect::Enable method (strmif.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The Enable method enables or disables a given stream.
Syntax
HRESULT Enable(
[in] long lIndex,
[in] DWORD dwFlags
);
Parameters
[in] lIndex
Zero-based index of the stream.
[in] dwFlags
Flag indicating whether to enable or disable the stream. Use one of the following values.
| Value | Description |
|---|---|
| Zero | Disable all streams in the group containing this stream. |
| AMSTREAMSELECTENABLE_ENABLE | Enable only this stream within the given group and disable all others. |
| AMSTREAMSELECTENABLE_ENABLEALL | Enable all streams in the group containing this stream. |
Return value
Returns an HRESULT value. Possible values include the following.
| Return code | Description |
|---|---|
|
Failure. |
|
Invalid stream ID. |
|
The filter does not support the specified flag. |
|
Success. |
|
The pins are not connected. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |