This example illustrates how to obtain an image referenced with the 'cid' prefix from an external file in BMP format.
The Rich Text Editor allows you to import HTML files that contain embedded images or links to external images with the src attribute specified as an image URL. However, you can have web files where images are referenced in a custom manner (for example, with the prefix 'cid' in the img src attribute, as in email files). In this case, you need to implement and register a custom IUriStreamProvider to import these files into the Rich Text Editor.
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