The QMediaServiceDefaultDeviceInterface class interface identifies the default device used by a media service plug-in. 更多...
| 头: | #include <QMediaServiceDefaultDeviceInterface> | 
| qmake: | QT += multimedia | 
| Since: | Qt 5.3 | 
| virtual | ~QMediaServiceDefaultDeviceInterface () | 
| virtual QByteArray | defaultDevice (const QByteArray & service ) const = 0 | 
The QMediaServiceDefaultDeviceInterface class interface identifies the default device used by a media service plug-in.
A QMediaServiceProviderPlugin may implement this interface.
[虚拟]
						
						QMediaServiceDefaultDeviceInterface::
						
							~QMediaServiceDefaultDeviceInterface
						
						()
						
					Destroys a media service default device interface.
[pure virtual]
						
						
							
								QByteArray
							
						
						QMediaServiceDefaultDeviceInterface::
						
							defaultDevice
						
						(const
						
							
								QByteArray
							
						
						&
						
							service
						
						) const
						
					Returns the default device for a service 类型。