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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

See also

Error and Success Codes

IAMDirectSound Interface