ItemGrabResult QML Type

Contains the results from a call to Item::grabToImage (). 更多...

import 语句：	import QtQuick
实例化：	QQuickItemGrabResult
继承：	QtObject

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特性

• image : variant
• url : url

方法

• bool saveToFile ( fileName )

详细描述

The ItemGrabResult is a small container used to encapsulate the results from Item::grabToImage ().

另请参阅 Item::grabToImage ().

特性文档编制

image : variant [read-only]

This property holds the pixel results from a grab in the form of a QImage .

url : url [read-only]

This property holds a URL which can be used in conjunction with URL based image consumers, such as the QtQuick::Image type.

The URL is valid while there is a reference in QML or JavaScript to the ItemGrabResult or while the image the URL references is actively used.

The URL does not represent a valid file or location to read it from, it is primarily a key to access images through Qt Quick's image-based types.

方法文档编制

bool saveToFile ( fileName )

Saves the grab result as an image to fileName 。返回 true 若成功；否则返回 false .

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