CanvasPixelArray QML Type
提供对图像数据中每个像素的组成部分进行有序且带索引的访问。更多...
| Import Statement: | import QtQuick |
属性
- length : int
详细说明
CanvasPixelArray 对象提供对图像数据中每个像素的颜色分量进行有序、基于索引的访问。CanvasPixelArray 可像普通 JavaScript 数组一样进行访问。
另请参阅 CanvasImageData 以及W3C 2D 上下文标准中关于 PixelArray 的内容。
属性文档
length : int
CanvasPixelArray 对象表示一个h×w×4的整数数组，其中w和h取自CanvasImageData 。CanvasPixelArray 对象的length属性必须返回该h×w×4的数值。该属性为只读属性。
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