How it is possible to make similar GUI?

Question

Python

Good day, with what you can write a similar wrapper in c ++ for "subprocesses":

I would like to have docks that can be closed-opened-resized, in which different processes will be launched. For example, as in the image in one dock, graphs are drawn using python, in another 3d visualization written in OpenGL, in the third there will be various checkboxes, buttons to control the process.
Are there any C++ libraries that can quickly write such a wrapper? (Preferably with a free license)
Ps I used ImGui , but alas, to implement such resizeable docks in it, you need to spend a lot of time, which is not there .. I looked towards CeGUI, but apparently there is the same problem according to the forums ..
Thanks

Answer 1

Qt?
You can communicate with processes in other languages ​​via files, sockets, or a database.

Answer 2

If you need a static* window - try positioning everything using position. And if it's dynamic**, then I don't know...
* - always the same size.
** - you can change the size, the program will "adjust" to the size.