CanvasPixelArray QML Type
提供对图像数据中每个像素成分的有序和索引访问。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成分的有序索引访问。CanvasPixelArray 可以像普通的 Javascript 数组一样进行访问。
另请参阅 CanvasImageData 和W3C 2d 上下文标准中的 PixelArray。
属性文档
length : int |
CanvasPixelArray 对象表示 h×w×4 整数，其中 w 和 h 来自CanvasImageData 。CanvasPixelArray 对象的 length 属性必须返回此 h×w×4 数值。此属性只读。
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