QCameraFlashControl Class

The QCameraFlashControl class allows controlling a camera's flash. More...

Header:	#include <QCameraFlashControl>
qmake:	QT += multimedia
Inherits:	QMediaControl

• List of all members, including inherited members

Public Functions

virtual	~QCameraFlashControl()
virtual QCameraExposure::FlashModes	flashMode() const = 0
virtual bool	isFlashModeSupported(QCameraExposure::FlashModes mode) const = 0
virtual bool	isFlashReady() const = 0
virtual void	setFlashMode(QCameraExposure::FlashModes mode) = 0

Signals

void	flashReady(bool ready)

Protected Functions

QCameraFlashControl(QObject *parent = nullptr)

Macros

QCameraFlashControl_iid

Detailed Description

You can set the type of flash effect used when an image is captured, and test to see if the flash hardware is ready to fire.

You can retrieve this control from the camera object in the usual way:

Some camera devices may not have flash hardware, or may not be configurable. In that case, there will be no QCameraFlashControl available.

The interface name of QCameraFlashControl is org.qt-project.qt.cameraflashcontrol/5.0 as defined in QCameraFlashControl_iid.

See also QCamera.

Member Function Documentation

[protected] QCameraFlashControl::QCameraFlashControl(QObject *parent = nullptr)

Constructs a camera flash control object with parent.

[signal] void QCameraFlashControl::flashReady(bool ready)

Signal emitted when flash state changes to ready.

[virtual] QCameraFlashControl::~QCameraFlashControl()

Destroys the camera control object.

[pure virtual] QCameraExposure::FlashModes QCameraFlashControl::flashMode() const

Returns the current flash mode.

See also setFlashMode().

[pure virtual] bool QCameraFlashControl::isFlashModeSupported(QCameraExposure::FlashModes mode) const

Return true if the reqested flash mode is supported. Some QCameraExposure::FlashMode values can be combined, for example QCameraExposure::FlashManual | QCameraExposure::FlashSlowSyncRearCurtain

[pure virtual] bool QCameraFlashControl::isFlashReady() const

Returns true if flash is charged.

[pure virtual] void QCameraFlashControl::setFlashMode(QCameraExposure::FlashModes mode)

Set the current flash mode.

Usually a single QCameraExposure::FlashMode flag is used, but some non conflicting flags combination are also allowed, like QCameraExposure::FlashManual | QCameraExposure::FlashSlowSyncRearCurtain.

See also flashMode().