QImageEncoderControl Class▲
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Header: QImageEncoderControl
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qmake: QT += multimedia
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Inherits: QMediaControl
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Inherited By:
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Group: QImageEncoderControl is part of multimedia_control
Detailed Description▲
If a QMediaService supports encoding image data it will implement QImageEncoderControl. This control allows to set image encoding settings and provides functions for quering supported image codecs and resolutions.
The interface name of QImageEncoderControl is org.qt-project.qt.imageencodercontrol/5.0 as defined in QImageEncoderControl_iid.
See Also▲
See also QImageEncoderSettings, QMediaService::requestControl()
Member Function Documentation▲
[explicit protected] QImageEncoderControl::QImageEncoderControl(QObject *parent = nullptr)▲
Constructs a new image encoder control object with the given parent
[virtual] QImageEncoderControl::~QImageEncoderControl()▲
Destroys the image encoder control.
[pure virtual] QString QImageEncoderControl::imageCodecDescription(const QString &codec) const▲
Returns a description of an image codec.
[pure virtual] QImageEncoderSettings QImageEncoderControl::imageSettings() const▲
Returns the currently used image encoder settings.
The returned value may be different tha passed to QImageEncoderControl::setImageSettings() if the settings contains the default or undefined parameters. In this case if the undefined parameters are already resolved, they should be returned.
See Also▲
See also setImageSettings()
[pure virtual] void QImageEncoderControl::setImageSettings(const QImageEncoderSettings &settings)▲
[pure virtual] QStringList QImageEncoderControl::supportedImageCodecs() const▲
Returns a list of supported image codecs.
[pure virtual] QList<QSize> QImageEncoderControl::supportedResolutions(const QImageEncoderSettings &settings, bool *continuous = nullptr) const▲
Returns a list of supported resolutions.
If non null image settings parameter is passed, the returned list is reduced to resolutions supported with partial settings applied. It can be used to query the list of resolutions, supported by specific image codec.
If the encoder supports arbitrary resolutions within the supported resolutions range, *continuous is set to true, otherwise *continuous is set to false.
Macro Documentation▲
QImageEncoderControl_iid▲
org.qt-project.qt.imageencodercontrol/5.0
Defines the interface name of the QImageEncoderControl class.