QCameraViewfinderSettingsControl ¶

详细描述 ¶

The interface name of QCameraViewfinderSettingsControl is org.qt-project.qt.cameraviewfindersettingscontrol/5.0 作为定义在 QCameraViewfinderSettingsControl_iid .

警告

New backends should implement QCameraViewfinderSettingsControl2 instead. Application developers should request this control only if QCameraViewfinderSettingsControl2 is not available.

另请参阅

requestControl() QCameraViewfinderSettingsControl2 QCamera

class QCameraViewfinderSettingsControl ( [ parent=None ] ) ¶

param parent

QObject

Constructs a camera viewfinder control object with parent .

PySide2.QtMultimedia.QCameraViewfinderSettingsControl. ViewfinderParameter ¶

常量	描述
QCameraViewfinderSettingsControl.Resolution	Viewfinder resolution, QSize .
QCameraViewfinderSettingsControl.PixelAspectRatio	Pixel aspect ratio, QSize as in pixelAspectRatio
QCameraViewfinderSettingsControl.MinimumFrameRate	Minimum viewfinder frame rate, qreal
QCameraViewfinderSettingsControl.MaximumFrameRate	Maximum viewfinder frame rate, qreal
QCameraViewfinderSettingsControl.PixelFormat	Viewfinder pixel format, PixelFormat
QCameraViewfinderSettingsControl.UserParameter	The base value for platform specific extended parameters. For such parameters the sequential values starting from should be used.

PySide2.QtMultimedia.QCameraViewfinderSettingsControl. isViewfinderParameterSupported ( 参数 ) ¶

参数

参数 – ViewfinderParameter

返回类型

bool

Returns true if configuration of viewfinder 参数 is supported by camera backend.

PySide2.QtMultimedia.QCameraViewfinderSettingsControl. setViewfinderParameter ( 参数 , value ) ¶

参数

• 参数 – ViewfinderParameter

• value – object

Set the prefferred value of viewfinder 参数 .

Calling this while the camera is active may result in the camera being stopped and reloaded. If video recording is in progress, this call may be ignored.

If an unsupported parameter is specified the camera may fail to load, or the setting may be ignored.

Viewfinder parameters may also depend on other camera settings, especially in video capture mode. If camera configuration conflicts with viewfinder settings, the camara configuration is usually preferred.

另请参阅

viewfinderParameter()

PySide2.QtMultimedia.QCameraViewfinderSettingsControl. viewfinderParameter ( 参数 ) ¶

参数

参数 – ViewfinderParameter

返回类型

object

Returns the value of viewfinder 参数 .

另请参阅

setViewfinderParameter()