Attach to a parent window?

In the audio production world, developers can build VST plugins. These plugins can have GUI's but need to attach the GUI to an externally managed window.

Is it possible to add a feature to this library to allow such functionality?

For example, here's a rust crate for vst gui's that opens a web view and attaches it to a parent window:
https://github.com/vanderlokken/rust-vst-gui/blob/c71ca8df17bbfb2b109aa72ffc05bbf56e3aeadd/src/lib.rs#L56

Here's the maintaners thoughts on using this library for cross-browser support:
https://github.com/vanderlokken/rust-vst-gui/issues/8#issuecomment-832985277

EDIT
ACK! This has already been mentioned in the Readme! So Sorry!