The QVideoDeviceSelectorControl class provides an video device selector media control. More...
| Header: | #include <QVideoDeviceSelectorControl> |
| qmake: | QT += multimedia |
| Inherits: | QMediaControl |
| virtual | ~QVideoDeviceSelectorControl() |
| virtual int | defaultDevice() const = 0 |
| virtual int | deviceCount() const = 0 |
| virtual QString | deviceDescription(int index) const = 0 |
| virtual QString | deviceName(int index) const = 0 |
| virtual int | selectedDevice() const = 0 |
| virtual void | setSelectedDevice(int index) = 0 |
| void | devicesChanged() |
| void | selectedDeviceChanged(int index) |
| void | selectedDeviceChanged(const QString &name) |
| QVideoDeviceSelectorControl(QObject *parent = nullptr) |
The QVideoDeviceSelectorControl class provides an video device selector media control.
The QVideoDeviceSelectorControl class provides descriptions of the video devices available on a system and allows one to be selected as the endpoint of a media service.
The interface name of QVideoDeviceSelectorControl is org.qt-project.qt.videodeviceselectorcontrol/5.0 as defined in QVideoDeviceSelectorControl_iid.
[protected] QVideoDeviceSelectorControl::QVideoDeviceSelectorControl(QObject *parent = nullptr)Constructs a video device selector control with the given parent.
[virtual] QVideoDeviceSelectorControl::~QVideoDeviceSelectorControl()Destroys a video device selector control.
[pure virtual] int QVideoDeviceSelectorControl::defaultDevice() constReturns the index of the default video device.
[pure virtual] int QVideoDeviceSelectorControl::deviceCount() constReturns the number of available video devices;
[pure virtual] QString QVideoDeviceSelectorControl::deviceDescription(int index) constReturns a description of the video device at index.
[pure virtual] QString QVideoDeviceSelectorControl::deviceName(int index) constReturns the name of the video device at index.
[signal] void QVideoDeviceSelectorControl::devicesChanged()Signals that the list of available video devices has changed.
[pure virtual] int QVideoDeviceSelectorControl::selectedDevice() constReturns the index of the selected video device.
See also setSelectedDevice().
[signal] void QVideoDeviceSelectorControl::selectedDeviceChanged(int index)Signals that the selected video device index has changed.
Note: Signal selectedDeviceChanged is overloaded in this class. To connect to this signal by using the function pointer syntax, Qt provides a convenient helper for obtaining the function pointer as shown in this example:
connect(videoDeviceSelectorControl, QOverload<int>::of(&QVideoDeviceSelectorControl::selectedDeviceChanged), [=](int index){ /* ... */ });
[signal] void QVideoDeviceSelectorControl::selectedDeviceChanged(const QString &name)Signals that the selected video device name has changed.
Note: Signal selectedDeviceChanged is overloaded in this class. To connect to this signal by using the function pointer syntax, Qt provides a convenient helper for obtaining the function pointer as shown in this example:
connect(videoDeviceSelectorControl, QOverload<const QString &>::of(&QVideoDeviceSelectorControl::selectedDeviceChanged), [=](const QString &name){ /* ... */ });
[pure virtual slot] void QVideoDeviceSelectorControl::setSelectedDevice(int index)Sets the selected video device index.
See also selectedDevice().
org.qt-project.qt.camerainfocontrol/5.3
Defines the interface name of the QCameraInfoControl class.
org.qt-project.qt.videodeviceselectorcontrol/5.0
Defines the interface name of the QVideoDeviceSelectorControl class.
