QVideoWidget Class
The QVideoWidget class provides a widget which presents video produced by a media object. More...
| Header: | #include <QVideoWidget> |
| CMake: | find_package(Qt6 REQUIRED COMPONENTS MultimediaWidgets) target_link_libraries(mytarget PRIVATE Qt6::MultimediaWidgets) |
| qmake: | QT += multimediawidgets |
| Inherits: | QWidget |
Properties
- aspectRatioMode : Qt::AspectRatioMode
- fullScreen : bool
Public Functions
| QVideoWidget(QWidget *parent = nullptr) | |
| virtual | ~QVideoWidget() |
| Qt::AspectRatioMode | aspectRatioMode() const |
| bool | isFullScreen() const |
| QVideoSink * | videoSink() const |
Reimplemented Public Functions
| virtual QSize | sizeHint() const override |
Public Slots
| void | setAspectRatioMode(Qt::AspectRatioMode mode) |
| void | setFullScreen(bool fullScreen) |
Signals
| void | aspectRatioModeChanged(Qt::AspectRatioMode mode) |
| void | fullScreenChanged(bool fullScreen) |
Reimplemented Protected Functions
| virtual bool | event(QEvent *event) override |
| virtual void | hideEvent(QHideEvent *event) override |
| virtual void | moveEvent(QMoveEvent *event) override |
| virtual void | resizeEvent(QResizeEvent *event) override |
| virtual void | showEvent(QShowEvent *event) override |
Detailed Description
Attaching a QVideoWidget to a QMediaPlayer or QCamera allows it to display the video or image output of that object.
player = new QMediaPlayer; player->setSource(QUrl("http://example.com/myclip1.mp4")); videoWidget = new QVideoWidget; player->setVideoOutput(videoWidget); videoWidget->show(); player->play();
Note: Only a single display output can be attached to a media object at one time.
See also QCamera, QMediaPlayer, and QGraphicsVideoItem.
Property Documentation
aspectRatioMode : Qt::AspectRatioMode
how video is scaled with respect to its aspect ratio.
Access functions:
| Qt::AspectRatioMode | aspectRatioMode() const |
| void | setAspectRatioMode(Qt::AspectRatioMode mode) |
Notifier signal:
| void | aspectRatioModeChanged(Qt::AspectRatioMode mode) |
fullScreen : bool
This property holds whether video display is confined to a window or is fullScreen.
Access functions:
| bool | isFullScreen() const |
| void | setFullScreen(bool fullScreen) |
Notifier signal:
| void | fullScreenChanged(bool fullScreen) |
Member Function Documentation
[explicit] QVideoWidget::QVideoWidget(QWidget *parent = nullptr)
Constructs a new video widget.
The parent is passed to QWidget.
[virtual noexcept] QVideoWidget::~QVideoWidget()
Destroys a video widget.
[override virtual protected] bool QVideoWidget::event(QEvent *event)
Reimplements: QWidget::event(QEvent *event).
Current event event. Returns the value of the base class QWidget::event(QEvent *event) function.
[override virtual protected] void QVideoWidget::hideEvent(QHideEvent *event)
Reimplements: QWidget::hideEvent(QHideEvent *event).
Handles the hide event.
[override virtual protected] void QVideoWidget::moveEvent(QMoveEvent *event)
Reimplements: QWidget::moveEvent(QMoveEvent *event).
Handles the move event.
[override virtual protected] void QVideoWidget::resizeEvent(QResizeEvent *event)
Reimplements: QWidget::resizeEvent(QResizeEvent *event).
Handles the resize event.
[override virtual protected] void QVideoWidget::showEvent(QShowEvent *event)
Reimplements: QWidget::showEvent(QShowEvent *event).
Handles the show event.
[override virtual] QSize QVideoWidget::sizeHint() const
Reimplements an access function for property: QWidget::sizeHint.
Returns the size hint for the current back end, if there is one, or else the size hint from QWidget.
[invokable] QVideoSink *QVideoWidget::videoSink() const
Returns the QVideoSink instance.
Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.