如何在Kivy中将小部件转换成图像文件？

Question

你好！你知道吗

我目前正在升级simplepaint项目，我想知道是否有任何方法可以将屏幕或小部件的当前状态保存为图像文件。我想实现这一点，但我不知道从哪里开始。你知道吗

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如有任何提示，我将不胜感激。你知道吗

Answer 1

在kivy documentation for widgets中，您可以简单地使用.export_to_png函数将小部件保存为图像。你知道吗

export_to_png(filename, *args)

Saves an image of the widget and its children in png format at the specified filename. Works by removing the widget canvas from its parent, rendering to an Fbo, and calling save().

Note

The image includes only this widget and its children. If you want to include widgets elsewhere in the tree, you must call export_to_png() from their common parent, or use screenshot() to capture the whole window.

Note

The image will be saved in png format, you should include the extension in your filename.