IAMDirectSound::SetFocusWindow method (amaudio.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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SetFocusWindow method specifies a window to handle sound playback.
Syntax
HRESULT SetFocusWindow(
[in] HWND unnamedParam1,
[in] BOOL unnamedParam2
);
Parameters
[in] unnamedParam1
Specifies a handle to the window. If this value is NULL, the sound will not be associated with any window.
[in] unnamedParam2
Specifies whether to mix the sound when the window loses focus.
| Value | Description |
|---|---|
| TRUE | The sound is audible when the window loses focus. |
| FALSE | The sound is not audible when the window loses focus. |
Return value
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
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 | amaudio.h |
| Library | Strmiids.lib |