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QCameraDevice Class Reference
[QtMediaModule]

The QCameraDevice class represents a simple camera device. For the user it is a thin interface for accessing camera functionality. More...

    #include <QCameraDevice>

Inherits QObject.

• List of all members, including inherited members

Public Types

• enum CaptureMode { StillMode, VideoMode }
• enum Orientation { FrontFacing, BackFacing, Changing }

Public Functions

• virtual unsigned int captureModes () const = 0
• virtual QString description () const = 0
• virtual QString name () const = 0
• virtual Orientation orientation () const = 0
• virtual QCameraPreviewCapture * previewCapture () const = 0
• virtual QCameraStillCapture * stillCapture () const = 0
• virtual QCameraVideoCapture * videoCapture () const = 0

• 29 public functions inherited from QObject

Signals

• void cameraError ( QtopiaCamera::CameraError err, QString errorMessage )

• 1 signal inherited from QObject

Additional Inherited Members

• 1 property inherited from QObject
• 1 public slot inherited from QObject
• 1 public type inherited from QObject
• 4 static public members inherited from QObject
• 7 protected functions inherited from QObject
• 2 protected variables inherited from QObject

Detailed Description

The QCameraDevice class represents a simple camera device. For the user it is a thin interface for accessing camera functionality.

The QCameraDevice has three modes of operation.

• Still: Used to capture single or if supported multiple still images.
• Video: Used to stream raw video data.
• Preview: Used to stream viewfinder data which can then be display on a device screen.

When implementing this class it is a requirement that previewing of data should always be available to the client whereas Still and Video capture are optional.

Member Type Documentation

enum QCameraDevice::CaptureMode

This enum specifies the possible modes the device supports

enum QCameraDevice::Orientation

This enum specifies the Orientation that the camera is in

Member Function Documentation

void QCameraDevice::cameraError ( QtopiaCamera::CameraError err, QString errorMessage )   [signal]

Signals that an error err has occured. Clients should connect to this signal to receive debugging/error information contained in errorMessage

See also QtopiaCamera::CameraError.

unsigned int QCameraDevice::captureModes () const   [pure virtual]

Returns a bit-wise OR of supported capture modes

See also QCameraDevice::CaptureMode.

QString QCameraDevice::description () const   [pure virtual]

Returns a description string of the camera device

QString QCameraDevice::name () const   [pure virtual]

Returns an indentifier for the camera device

Orientation QCameraDevice::orientation () const   [pure virtual]

Returns the camera device orientation

See also QCameraDevice::Orientation.

QCameraPreviewCapture * QCameraDevice::previewCapture () const   [pure virtual]

Returns a class that implements the functionality to capture preview data from the camera device

See also QCameraPreviewCapture.

QCameraStillCapture * QCameraDevice::stillCapture () const   [pure virtual]

Returns a class that implements the functionality to capture still data from the camera device

See also QCameraStillCapture.

QCameraVideoCapture * QCameraDevice::videoCapture () const   [pure virtual]

Returns a class that implements the functionality to capture video data from the camera device

See also QCameraVideoCapture.