I think there has been a big miscommunication somewhere. I don't see what IDE's have to do with this. I'm thinking of say having a "draw button" command that works in any programming language similar to how just about any programming language can send and receive HTML to "have" a UI via a web browser. But, the markup language would be better suited to GUI's than HTML/CSS/DOM.

Note I am not against middle-ware that can translate a GUI markup language to and from "native" data structures/types. I use and make "HTML helpers" in specific application languages all the time so that I'm not communicating in raw HTML for specific common items.