QtMobility Reference Documentation

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QVideoWindowControl Class Reference

The QVideoWindowControl class provides a media control for rendering video to a window. More...

 #include <QVideoWindowControl>

Inherits: QMediaControl.

This class was introduced in Qt Mobility 1.0.

Public Functions

~QVideoWindowControl ()
virtual Qt::AspectRatioMode aspectRatioMode () const = 0
virtual int brightness () const = 0
virtual int contrast () const = 0
virtual QRect displayRect () const = 0
virtual int hue () const = 0
virtual bool isFullScreen () const = 0
virtual QSize nativeSize () const = 0
virtual void repaint () = 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 setDisplayRect ( const QRect & rect ) = 0
virtual void setFullScreen ( bool fullScreen ) = 0
virtual void setHue ( int hue ) = 0
virtual void setSaturation ( int saturation ) = 0
virtual void setWinId ( WId id ) = 0
virtual WId winId () const = 0
  • 29 public functions inherited from QObject

Signals

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

Protected Functions

QVideoWindowControl ( QObject * parent = 0 )
  • 7 protected functions inherited from QObject

Macros

QVideoWindowControl_iid

Additional Inherited Members

  • 1 property inherited from QObject
  • 1 public slot inherited from QObject
  • 1 public variable inherited from QObject
  • 4 static public members inherited from QObject
  • 2 protected variables inherited from QObject

Detailed Description

The QVideoWindowControl class provides a media control for rendering video to a window.

The winId() property QVideoWindowControl allows a platform specific window ID to be set as the video render target of a QMediaService. The displayRect() property is used to set the region of the window the video should be rendered to, and the aspectRatioMode() property indicates how the video should be scaled to fit the displayRect().

 QVideoWindowControl *windowControl = mediaService->requestControl<QVideoWindowControl *>();
 windowControl->setWinId(widget->winId());
 windowControl->setDisplayRect(widget->rect());
 windowControl->setAspectRatioMode(Qt::KeepAspectRatio);

QVideoWindowControl is one of a number of possible video output controls.

The interface name of QVideoWindowControl is com.nokia.Qt.QVideoWindowControl/1.0 as defined in QVideoWindowControl_iid.

See also QMediaService::requestControl() and QVideoWidget.

Member Function Documentation

QVideoWindowControl::QVideoWindowControl ( QObject * parent = 0 ) [protected]

Constructs a new video window control with the given parent.

QVideoWindowControl::~QVideoWindowControl ()

Destroys a video window control.

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

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

This function was introduced in Qt Mobility 1.0.

See also setAspectRatioMode().

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

Returns the brightness adjustment applied to a video overlay.

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

This function was introduced in Qt Mobility 1.0.

See also setBrightness().

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

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

This function was introduced in Qt Mobility 1.0.

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

Returns the contrast adjustment applied to a video overlay.

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

This function was introduced in Qt Mobility 1.0.

See also setContrast().

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

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

This function was introduced in Qt Mobility 1.0.

QRect QVideoWindowControl::displayRect () const [pure virtual]

Returns the sub-rect of a window where video is displayed.

This function was introduced in Qt Mobility 1.0.

See also setDisplayRect().

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

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

This function was introduced in Qt Mobility 1.0.

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

Returns the hue adjustment applied to a video overlay.

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

This function was introduced in Qt Mobility 1.0.

See also setHue().

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

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

This function was introduced in Qt Mobility 1.0.

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

Identifies if a video overlay is a fullScreen overlay.

Returns true if the video overlay is fullScreen, and false otherwise.

This function was introduced in Qt Mobility 1.0.

QSize QVideoWindowControl::nativeSize () const [pure virtual]

Returns a suggested size for the video display based on the resolution and aspect ratio of the video.

This function was introduced in Qt Mobility 1.0.

void QVideoWindowControl::nativeSizeChanged () [signal]

Signals that the native dimensions of the video have changed.

This function was introduced in Qt Mobility 1.0.

void QVideoWindowControl::repaint () [pure virtual]

Repaints the last frame.

This function was introduced in Qt Mobility 1.0.

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

Returns the saturation adjustment applied to a video overlay.

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

This function was introduced in Qt Mobility 1.0.

See also setSaturation().

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

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

This function was introduced in Qt Mobility 1.0.

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

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

This function was introduced in Qt Mobility 1.0.

See also aspectRatioMode().

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

Sets a brightness adjustment for a video overlay.

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

This function was introduced in Qt Mobility 1.0.

See also brightness().

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

Sets the contrast adjustment for a video overlay.

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

This function was introduced in Qt Mobility 1.0.

See also contrast().

void QVideoWindowControl::setDisplayRect ( const QRect & rect ) [pure virtual]

Sets the sub-rect of a window where video is displayed.

This function was introduced in Qt Mobility 1.0.

See also displayRect().

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

Sets whether a video overlay is a fullScreen overlay.

This function was introduced in Qt Mobility 1.0.

See also isFullScreen().

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

Sets a hue adjustment for a video overlay.

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

This function was introduced in Qt Mobility 1.0.

See also hue().

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

Sets a saturation adjustment for a video overlay.

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

This function was introduced in Qt Mobility 1.0.

See also saturation().

void QVideoWindowControl::setWinId ( WId id ) [pure virtual]

Sets the id of the window a video overlay end point renders to.

This function was introduced in Qt Mobility 1.0.

See also winId().

WId QVideoWindowControl::winId () const [pure virtual]

Returns the ID of the window a video overlay end point renders to.

This function was introduced in Qt Mobility 1.0.

See also setWinId().

Macro Documentation

QVideoWindowControl_iid

com.nokia.Qt.QVideoWindowControl/1.0

Defines the interface name of the QVideoWindowControl class.

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