I am trying to find any basic tutorial which could show me how could I do immediate mode gui. I know it is a really hard thing to make own gui. I have already tried to make retained gui (it ends up being very basic). I have been looking for any im gui tutorials for a long time, but could not find one. I've tried to read ImGui lib, but some things are hard to understand.
Do you have any vidoes, books, ...?
Could you give me some advices how could I make that type of gui.
I do not want to use external libs. I want to learn something.