QMediaAvailabilityControl ¶

详细描述 ¶

An instance of QMediaObject (or its derived classes) can report any changes in availability via this control.

The interface name of QMediaAvailabilityControl is org.qt-project.qt.mediaavailabilitycontrol/5.0 作为定义在 QMediaAvailabilityControl_iid .

另请参阅

requestControl() QMediaObject

class QMediaAvailabilityControl ( [ parent=None ] ) ¶

param parent

QObject

Constructs an availability control object with parent .

PySide2.QtMultimedia.QMediaAvailabilityControl. availability ( ) ¶

返回类型

AvailabilityStatus

Returns the current availability of this instance of the media service. If the availability changes at run time (for example, some other media client takes all media resources) the availabilityChanges() signal should be emitted.

PySide2.QtMultimedia.QMediaAvailabilityControl. availabilityChanged ( availability ) ¶

参数

availability – AvailabilityStatus