Didn't follow requested guidelines or issue template.

• Please make sure you have read the guidelines.
• Please provide more complete, your post is too ambiguous.
• Please clarify what you have tried.
• Please edit your post (don't create a new post) with the Issue Template shown in "New Issue" and reply here when edited.

Closing for now.

Done.

You could be querying the pos/size of the central window then using SetNextWindowPos()/SetNextWindowSize() on the left and right window, what is the problem with that?

Note that you may find the Docking #2109 useful, and specifically what you are aiming at in a generalized way would be covered by Photoshop-style docking which as been discussed (#2248) but is unlikely to happen very soon.

The problem is, that when i focus on any window of theese, they get on top, but others dont.
I tried using IsWindowFocused+FocusWindow, but this is gonna be painful when you have more than two windows.

Here is a screenshot of what i mean

I don't understand why the focus would matter, your first example suggests non-overlapping windows and now you are showing showing completely different. And it's hard to understand what you've tried.

My bad, should have seen the clues,
Sorry but #1586