如何将覆盖HTML5 Canvas背后的HTML元素保存为图像？(How to save HTML elements behind an overlay HTML5 Canvas as an imag

如何将覆盖HTML5 Canvas背后的HTML元素保存为图像？(How to save HTML elements behind an overlay HTML5 Canvas as an image?)

HTML 5画布默认是透明的。 如果它是在HTML元素上，例如图像，那么该图像也可以通过画布看到。 我的问题是，有没有办法捕捉通过画布可见的背景区域？

HTML 5 canvas is by default transparent. If it is over an HTML element, e.g. an image, that image is visible through canvas too. My question is, Is there a way to capture the area of background which is visible through canvas?

最满意答案

您无法仅捕获画布背景中的画布背景。

You can't capture the canvas background just the content of the canvas.