内容

• 公共函数
• 信号
• 保护函数
• 宏
• 详细描述

QVideoWidgetControl 类

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

头：	#include <QVideoWidgetControl>
qmake:	QT += multimediawidgets
继承：	QMediaControl

• 所有成员列表，包括继承成员

公共函数

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

• 32 公共函数继承自 QObject

信号

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

• 2 信号继承自 QObject

保护函数

QVideoWidgetControl (QObject * parent = Q_NULLPTR)

• 9 保护函数继承自 QObject

宏

QVideoWidgetControl_iid

额外继承成员

• 1 特性继承自 QObject
• 1 公共槽继承自 QObject
• 11 静态公共成员继承自 QObject

详细描述

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

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.

接口名称对于 QVideoWidgetControl is org.qt-project.qt.videowidgetcontrol/5.0 作为定义在 QVideoWidgetControl_iid .

另请参阅 QMediaService::requestControl () 和 QVideoWidget .

成员函数文档编制

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

构造新视频 Widget 控件采用给定 parent .

[virtual] QVideoWidgetControl:: ~QVideoWidgetControl ()

销毁视频 Widget 控件。

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

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

另请参阅 setAspectRatioMode ().

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

Returns the brightness adjustment applied to a video.

有效亮度值的范围在 -100 到 100 之间，默认为 0。

另请参阅 setBrightness ().

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

Signals that a video widget's brightness 调节已改变。

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

Returns the contrast adjustment applied to a video.

有效对比度值的范围在 -100 到 100 之间，默认为 0。

另请参阅 setContrast ().

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

Signals that a video widget's contrast 调节已改变。

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

信号 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.

另请参阅 setHue ().

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

Signals that a video widget's hue 调节已改变。

[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.

另请参阅 setSaturation ().

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

Signals that a video widget's saturation 调节已改变。

[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.

另请参阅 aspectRatioMode ().

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

设置 brightness 调节为视频。

有效亮度值的范围在 -100 到 100 之间，默认为 0。

另请参阅 brightness ().

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

把视频 Widget 的对比度调节设为 contrast .

有效对比度值的范围在 -100 到 100 之间，默认为 0。

另请参阅 contrast ().

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

Sets whether a video widget is in fullScreen 模式。

另请参阅 isFullScreen ().

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

设置 hue 调节为视频 Widget。

有效色相值的范围在 -100 到 100 之间，默认为 0。

另请参阅 hue ().

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

设置 saturation 调节为视频 Widget。

有效饱和度值的范围在 -100 至 100 之间，默认为 0。

另请参阅 saturation ().

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

返回 QWidget .

宏文档编制

QVideoWidgetControl_iid

org.qt-project.qt.videowidgetcontrol/5.0

定义接口名为 QVideoWidgetControl 类。