QCameraInfo Class

Detailed Description

QCameraInfo lets you query for camera devices that are currently available on the system.

The static functions defaultCamera() and availableCameras() provide you a list of all available cameras.

This example prints the name of all available cameras:

 const QList<QCameraInfo> cameras = QCameraInfo::availableCameras();
 for (const QCameraInfo &cameraInfo : cameras)
     qDebug() << cameraInfo.deviceName();

A QCameraInfo can be used to construct a QCamera. The following example instantiates a QCamera whose camera device is named 'mycamera':

 const QList<QCameraInfo> cameras = QCameraInfo::availableCameras();
 for (const QCameraInfo &cameraInfo : cameras) {
     if (cameraInfo.deviceName() == "mycamera")
         camera = new QCamera(cameraInfo);
 }

You can also use QCameraInfo to get general information about a camera device such as description, physical position on the system, or camera sensor orientation.

 QCamera myCamera;
 QCameraInfo cameraInfo(myCamera);

 if (cameraInfo.position() == QCamera::FrontFace)
     qDebug() << "The camera is on the front face of the hardware system.";
 else if (cameraInfo.position() == QCamera::BackFace)
     qDebug() << "The camera is on the back face of the hardware system.";

 qDebug() << "The camera sensor orientation is " << cameraInfo.orientation() << " degrees.";