IDirectMusicSynthSink::Activate method (dmusics.h)

[アーティクル]
12/05/2018

The Activate method activates or deactivates the synthesizer sink.

Syntax

HRESULT Activate(
  BOOL fEnable
);

Parameters

fEnable

Specifies whether to activate the synth sink. If TRUE, the method activates the synth sink. If FALSE, it deactivates it.

Return value

Activate returns S_OK if the call was successful. Otherwise, the method returns an appropriate error code. The following table shows some of the possible return status codes.

Return code	Description
E_FAIL	Indicates that the method is unable to activate or deactivate the synth sink.
DMUS_E_SYNTHNOTCONFIGURED	Indicates that the synth is not set or not properly configured.
DMUS_E_SYNTHACTIVE	Indicates that the sink is already active.
DMUS_E_DSOUND_NOT_SET	Indicates that SetDirectSound hasn't been called successfully.
DMUS_E_NO_MASTER_CLOCK	Indicates that SetMasterClock hasn't been called successfully.

Remarks

The synthesizer itself can be told to enable or disable the audio device. In turn, it calls the synth sink, which manages the audio device. This gives the application the ability to manage its use of resources. When it is not playing music, it can deactivate the sink to free the wave-output device for other applications.

For more information, see the description of the IDirectMusic interface in the Microsoft Windows SDK documentation.

Requirements

Requirement	Value
Target Platform	Desktop
Header	dmusics.h (include Dmusics.h)

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