The QCameraInfoControl class provides a camera info media control. 更多...
| 头： | #include <QCameraInfoControl> |
| qmake: | QT += multimedia |
| Since: | Qt 5.3 |
| 继承： | QMediaControl |
该类已过时。 提供它是为使旧源代码能继续工作。强烈建议不要在新代码中使用它。
该类在 Qt 5.3 引入。
| virtual | ~QCameraInfoControl () |
| virtual int | cameraOrientation (const QString & deviceName ) const = 0 |
| virtual QCamera::Position | cameraPosition (const QString & deviceName ) const = 0 |
| QCameraInfoControl (QObject * parent = nullptr) |
The QCameraInfoControl class provides information about the camera devices available on the system.
The interface name of QCameraInfoControl is
org.qt-project.qt.camerainfocontrol/5.3
作为定义在
QCameraInfoControl_iid
.
[protected]
QCameraInfoControl::
QCameraInfoControl
(
QObject
*
parent
= nullptr)
Constructs a camera info control with the given parent .
[虚拟]
QCameraInfoControl::
~QCameraInfoControl
()
Destroys a camera info control.
[pure virtual]
int
QCameraInfoControl::
cameraOrientation
(const
QString
&
deviceName
) const
Returns the physical orientation of the sensor for the camera named deviceName .
The value is the orientation angle (clockwise, in steps of 90 degrees) of the camera sensor in relation to the display in its natural orientation.
[pure virtual]
QCamera::Position
QCameraInfoControl::
cameraPosition
(const
QString
&
deviceName
) const
Returns the physical position of the camera named deviceName on the hardware system.