Qt Documentation

Contents

QVideoWidgetControl Class

The QVideoWidgetControl class provides a media control which implements a video widget. More...

Header: #include <QVideoWidgetControl>
qmake: QT += multimediawidgets
Inherits: QMediaControl

Public Functions

virtual ~QVideoWidgetControl()
virtual Qt::AspectRatioMode aspectRatioMode() const = 0
virtual int brightness() const = 0
virtual int contrast() const = 0
virtual int hue() const = 0
virtual bool isFullScreen() const = 0
virtual int saturation() const = 0
virtual void setAspectRatioMode(Qt::AspectRatioMode mode) = 0
virtual void setBrightness(int brightness) = 0
virtual void setContrast(int contrast) = 0
virtual void setFullScreen(bool fullScreen) = 0
virtual void setHue(int hue) = 0
virtual void setSaturation(int saturation) = 0
virtual QWidget *videoWidget() = 0
  • 31 public functions inherited from QObject

Signals

void brightnessChanged(int brightness)
void contrastChanged(int contrast)
void fullScreenChanged(bool fullScreen)
void hueChanged(int hue)
void saturationChanged(int saturation)

Protected Functions

QVideoWidgetControl(QObject *parent = Q_NULLPTR)
  • 9 protected functions inherited from QObject

Macros

QVideoWidgetControl_iid

Additional Inherited Members

  • 1 property inherited from QObject
  • 1 public slot inherited from QObject
  • 11 static public members inherited from QObject

Detailed Description

The QVideoWidgetControl class provides a media control which implements a video widget.

The videoWidget() property of QVideoWidgetControl provides a pointer to a video widget implemented by the control's media service. This widget is owned by the media service and so care should be taken not to delete it.

QVideoWidgetControl *widgetControl = mediaService->requestControl<QVideoWidgetControl *>();
layout->addWidget(widgetControl->videoWidget());

QVideoWidgetControl is one of number of possible video output controls.

The interface name of QVideoWidgetControl is org.qt-project.qt.videowidgetcontrol/5.0 as defined in QVideoWidgetControl_iid.

See also QMediaService::requestControl() and QVideoWidget.

Member Function Documentation

[protected] QVideoWidgetControl::QVideoWidgetControl(QObject *parent = Q_NULLPTR)

Constructs a new video widget control with the given parent.

[virtual] QVideoWidgetControl::~QVideoWidgetControl()

Destroys a video widget control.

[pure virtual] Qt::AspectRatioMode QVideoWidgetControl::aspectRatioMode() const

Returns how video is scaled to fit the widget with respect to its aspect ratio.

See also setAspectRatioMode().

[pure virtual] int QVideoWidgetControl::brightness() const

Returns the brightness adjustment applied to a video.

Valid brightness values range between -100 and 100, the default is 0.

See also setBrightness().

[signal] void QVideoWidgetControl::brightnessChanged(int brightness)

Signals that a video widget's brightness adjustment has changed.

[pure virtual] int QVideoWidgetControl::contrast() const

Returns the contrast adjustment applied to a video.

Valid contrast values range between -100 and 100, the default is 0.

See also setContrast().

[signal] void QVideoWidgetControl::contrastChanged(int contrast)

Signals that a video widget's contrast adjustment has changed.

[signal] void QVideoWidgetControl::fullScreenChanged(bool fullScreen)

Signals that the fullScreen state of a video widget has changed.

[pure virtual] int QVideoWidgetControl::hue() const

Returns the hue adjustment applied to a video widget.

Value hue values range between -100 and 100, the default is 0.

See also setHue().

[signal] void QVideoWidgetControl::hueChanged(int hue)

Signals that a video widget's hue adjustment has changed.

[pure virtual] bool QVideoWidgetControl::isFullScreen() const

Returns true if the video is shown using the complete screen.

[pure virtual] int QVideoWidgetControl::saturation() const

Returns the saturation adjustment applied to a video widget.

Value saturation values range between -100 and 100, the default is 0.

See also setSaturation().

[signal] void QVideoWidgetControl::saturationChanged(int saturation)

Signals that a video widget's saturation adjustment has changed.

[pure virtual] void QVideoWidgetControl::setAspectRatioMode(Qt::AspectRatioMode mode)

Sets the aspect ratio mode which determines how video is scaled to the fit the widget with respect to its aspect ratio.

See also aspectRatioMode().

[pure virtual] void QVideoWidgetControl::setBrightness(int brightness)

Sets a brightness adjustment for a video.

Valid brightness values range between -100 and 100, the default is 0.

See also brightness().

[pure virtual] void QVideoWidgetControl::setContrast(int contrast)

Sets the contrast adjustment for a video widget to contrast.

Valid contrast values range between -100 and 100, the default is 0.

See also contrast().

[pure virtual] void QVideoWidgetControl::setFullScreen(bool fullScreen)

Sets whether a video widget is in fullScreen mode.

See also isFullScreen().

[pure virtual] void QVideoWidgetControl::setHue(int hue)

Sets a hue adjustment for a video widget.

Valid hue values range between -100 and 100, the default is 0.

See also hue().

[pure virtual] void QVideoWidgetControl::setSaturation(int saturation)

Sets a saturation adjustment for a video widget.

Valid saturation values range between -100 and 100, the default is 0.

See also saturation().

[pure virtual] QWidget *QVideoWidgetControl::videoWidget()

Returns the QWidget.

Macro Documentation

QVideoWidgetControl_iid

org.qt-project.qt.videowidgetcontrol/5.0

Defines the interface name of the QVideoWidgetControl class.

© 2017 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.