Image sensors – camera

First, we should establish whether the device has any cameras. This helps us determine specifics about the use of the camera and other camera specifications, such as the orientation or position on the device.

For this, we will use QCameraInfo.

QCameraInfo

We can get a list of cameras using the QCameraInfo::availableCameras() function:

The source code can be found in this book's Git repository under the Chapter09-4 directory, in the cp9 branch.

    QList<QCameraInfo> cameras = QCameraInfo::availableCameras();
    foreach (const QCameraInfo &cameraInfo, cameras)
        ui->textEdit->insertPlainText(cameraInfo.deviceName() + "\n");

On my...