RectMask2D 是一个类似于__遮罩 (Mask)__ 控件的遮罩控件。遮罩将子元素限制为父元素的矩形。与标准的遮罩控件不同,这种控件有一些限制,但也有许多性能优势。
RectMask2D 的一个常见用途是显示较大区域的小部分。使用 RectMask2D 可框定此区域。
RectMask2D 控件的局限性包括:
RectMask2D 的优势包括:
RectMask2D
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