I suggest looking at wxWidgets. Fully cross platform, no commercial/paid version, all open source, without any of the org issues facing QT, and it's... a classic GUI.
I'm interested in seeing if Elements can integrate. WxWidgets has the typical amount of code (more than a little, but not much more) to create one's GUI. There's significantly more than just a GUI, BTW.
I also tried Dear Imgui, but had to back out due to the constant rendering requirement of Imgui, because my applications are already hi-compute and a persistent GUI is required when you're already pushing the CPU without any GUI.
I'm interested in seeing if Elements can integrate. WxWidgets has the typical amount of code (more than a little, but not much more) to create one's GUI. There's significantly more than just a GUI, BTW.
I also tried Dear Imgui, but had to back out due to the constant rendering requirement of Imgui, because my applications are already hi-compute and a persistent GUI is required when you're already pushing the CPU without any GUI.