QCameraZoomControl ¶

详细描述 ¶

The interface name of QCameraZoomControl is org.qt-project.qt.camerazoomcontrol/5.0 作为定义在 QCameraZoomControl_iid .

另请参阅

requestControl() QCamera

class QCameraZoomControl ( [ parent=None ] ) ¶

param parent

QObject

Constructs a camera zoom control object with parent .

PySide2.QtMultimedia.QCameraZoomControl. currentDigitalZoom ( ) ¶

返回类型

qreal

Return the current digital zoom value.

PySide2.QtMultimedia.QCameraZoomControl. currentDigitalZoomChanged ( digitalZoom ) ¶

参数

digitalZoom – qreal

PySide2.QtMultimedia.QCameraZoomControl. currentOpticalZoom ( ) ¶

返回类型

qreal

Return the current optical zoom value.

PySide2.QtMultimedia.QCameraZoomControl. currentOpticalZoomChanged ( opticalZoom ) ¶

参数

opticalZoom – qreal

PySide2.QtMultimedia.QCameraZoomControl. maximumDigitalZoom ( ) ¶

返回类型

qreal

Returns the maximum digital zoom value, or 1.0 if digital zoom is not supported.

PySide2.QtMultimedia.QCameraZoomControl. maximumDigitalZoomChanged ( arg__1 ) ¶

参数

arg__1 – qreal

PySide2.QtMultimedia.QCameraZoomControl. maximumOpticalZoom ( ) ¶

返回类型

qreal

Returns the maximum optical zoom value, or 1.0 if optical zoom is not supported.

PySide2.QtMultimedia.QCameraZoomControl. maximumOpticalZoomChanged ( arg__1 ) ¶

参数

arg__1 – qreal

PySide2.QtMultimedia.QCameraZoomControl. requestedDigitalZoom ( ) ¶

返回类型

qreal

Return the requested digital zoom value.

PySide2.QtMultimedia.QCameraZoomControl. requestedDigitalZoomChanged ( digitalZoom ) ¶

参数

digitalZoom – qreal

PySide2.QtMultimedia.QCameraZoomControl. requestedOpticalZoom ( ) ¶

返回类型

qreal

Return the requested optical zoom value.

PySide2.QtMultimedia.QCameraZoomControl. requestedOpticalZoomChanged ( opticalZoom ) ¶

参数

opticalZoom – qreal

PySide2.QtMultimedia.QCameraZoomControl. zoomTo ( optical , digital ) ¶

参数

• optical – qreal

• digital – qreal

集 optical and digital zoom values.

Zooming can be asynchronous with value changes reported with currentDigitalZoomChanged() and currentOpticalZoomChanged() signals.

The backend should expect and correctly handle frequent calls during zoom animations or slider movements.