內容

• 公共函數
• 信號
• 靜態公共成員
• 保護函數
• 宏
• 詳細描述

QCameraFlashControl Class

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

頭：	#include <QCameraFlashControl>
qmake:	QT += multimedia
繼承：	QMediaControl

• 所有成員列錶，包括繼承成員
• 過時成員

公共函數

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

• 31 公共函數繼承自 QObject

信號

void	flashReady (bool ready )

• 2 信號繼承自 QObject

靜態公共成員

const QMetaObject

staticMetaObject

• 9 靜態公共成員繼承自 QObject

保護函數

QCameraFlashControl (QObject * parent = nullptr)

• 9 保護函數繼承自 QObject

宏

QCameraFlashControl_iid

額外繼承成員

• 1 特性繼承自 QObject
• 1 公共槽繼承自 QObject

詳細描述

The QCameraFlashControl class allows controlling a camera's flash.

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.

接口名稱對於 QCameraFlashControl is org.qt-project.qt.cameraflashcontrol/5.0 作為定義在 QCameraFlashControl_iid .

另請參閱 QCamera .

成員函數文檔編製

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

Constructs a camera flash control object with parent .

[虛擬] QCameraFlashControl:: ~QCameraFlashControl ()

Destroys the camera control object.

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

Returns the current flash mode.

另請參閱 setFlashMode ().

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

Signal emitted when flash state changes to ready .

[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 .

另請參閱 flashMode ().

宏文檔編製

QCameraFlashControl_iid

org.qt-project.qt.cameraflashcontrol/5.0

定義接口名為 QCameraFlashControl 類。