Sure. Check out the tutorial that has remained pretty much the same since I used it to learn FLTK + GL 23 years ago: https://www.fltk.org/doc-1.3/fluid.html ht

Sure. Check out the tutorial that has remained pretty much the same since I used it to learn FLTK + GL 23 years ago: https://www.fltk.org/doc-1.3/fluid.html https://www.fltk.org/doc-1.3/fluid.html You pretty much draw the UI in fluid and fill out the callbacks. Yeah it's C++ but it's not particularly esoteric C++.