does dear imgui remove gdi support

is dear imgui can draw in gdi, where is references.

[rokups]

Dear ImGui does not have GDI backend, however you could implement one if that is something you need. Library itself is backed-agnostic. You get a list of draw commands which you execute using whatever means possible.

[ocornut]

You already opened an issue about this here: #4193

GDI is not really adequate for dear imgui, but there's an experiment backend here #2724
I found it by searching for "GDI" in issues.