Как создать калькулятор в imgui opengl C++?

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Hi there,

I wanted to make a calculator in ImGui. I have done a lot of research, but I have had no luck with it. This is my last opportunity.

Buttons = Buttons and Display box with input output systems = Code.

Text box = 2 text boxes 1 display box. If anyone knows the answer please help.

If you don't understand tell me what you don't understand.

Thanks

Что я уже пробовал:

Я много пробовал, но удалил весь код.

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