Class Description

Definition at line 49 of file audiooutputinterface.h.

Inheritance diagram for AudioOutputInterface40:

Public Member Functions
virtual	~AudioOutputInterface40 ()

virtual qreal	volume () const =0
	Returns the current software volume. More...

virtual void	setVolume (qreal)=0
	Sets the new current software volume. More...

virtual int	outputDevice () const =0
	Returns the index of the device that is used. More...

virtual bool	setOutputDevice (int)=0

Constructor & Destructor Documentation

virtual ~AudioOutputInterface40 ( )

inlinevirtual

Definition at line 52 of file audiooutputinterface.h.

52 {}

virtual qreal volume ( ) const

pure virtual

Returns the current software volume.

A value of 0.0 means muted, 1.0 means unchanged, 2.0 means double voltage (i.e. all samples are multiplied by 2).

virtual void setVolume ( qreal )

pure virtual

Sets the new current software volume.

A value of 0.0 means muted, 1.0 means unchanged, 2.0 means double voltage (i.e. all samples are multiplied by 2).

Every time the volume in the backend changes it should emit volumeChanged(qreal), also inside this function.

virtual int outputDevice ( ) const

pure virtual

Returns the index of the device that is used.

The index is the number returned from BackendInterface::objectDescriptionIndexes(AudioOutputDeviceType).

virtual bool setOutputDevice ( int )

pure virtual

Requests to change the current output device to the one identified by the passed index.

The index is the number returned from BackendInterface::objectDescriptionIndexes(AudioOutputDeviceType).

Returns: true if the requested device works and is used after this call.; false if something failed and the device is not used after this call.

The documentation for this class was generated from the following file: