how do you activate keyboard input (for the imtui demo)

[julianrendell]

Thanks for this wonderful port of imgui! I've just discovered Dear imgui & imtui, and managed to get imtui working in repl.it(!)

However repl.it does not support mouse input, and I can't figure out/find what keys to use to navigate the demo app.

I noticed the HN viewer does work with keypresses (though I can't figure out how to cleanly exit.)

Are there default key bindings?

Or what do you need to do to bind a key to be an exit/quit command?

(I'm planning on experimenting with repl.it for C/C++ and learning imgui basics via imtui. Might not be the easiest path, but I have more places I have access to a browser than a compiler :-) )

Thanks in advance!

[ggerganov]

Hi - this looks interesting! I've never used repl.it, but now I might give it a try.

I noticed the HN viewer does work with keypresses (though I can't figure out how to cleanly exit.)

You should be able to quit using Shift + 'q'.
This is the code that handles this:

imtui/examples/hnterm/main.cpp

Lines 627 to 629 in d862d00

	if (ImGui::IsKeyPressed('Q', false)) {
	return false;
	}

You can handle any key in a similar way. Just follow the "HNTerm" app as an example.

The demo app is not designed to be used with a keyboard - one needs to have a mouse to use it.
This demo app is the same as Dear ImGui's demo app. Probably ImTui should have a separate demo app with keyboard input being the main control.

Definitely keep us updated with your progress - it looks interesting.

[julianrendell]

Thanks!!!

I've (finally) discovered/realized that the "awful" documentation (for Dear ImGUI) is actually really good... it's just in the code itself. I've become used to libraries that have little internal documentation (I shame IMHO) and docs being separate.... so was a bit lost.

I'm finding repl.it to be frustrating; a lot of potential but limited infrastructure support for C/C++, and so far no responses from their community (not a complaint- as I look more at it, very clear there's more interest in scripting languages. Happy there's any C/C++ support at all ;-).) My current "blockers" - can't successfully install debs (eg dev libraries) via their apt wrapper. Can install via git, but then their "runner" system tries to blindly compile everything.... move libraries out of the watched directory, and it's removed between sessions. I haven't got around to dropping in a MakeFile to see if that "just works"... because my C/C++ is very rusty/mostly been Arduino/Platform IO recently, where all the infrastructure is pre-canned. More details of what I tried- repl.it discussion post. I think I'll focus on learning Dear ImGUI via visual studio code on my machine, learn enough cmake to build my experiments, then come back to ImTUI, then repl.it :-)