Graphics in c++

using graphic library (SFML, SDL, Allegro, OpenGL, DirectX etc).

DirectX, opengl, vulkan are common graphics apis if you want something simple there is sdl

3d graphics - OpenGL ( cross platform ) 2d graphics - SFML ( cross platform ) GUI - QT, wxWidgets, GTK, GTKMM, FLTK. ( cross platform )

In Turbo C You Can Use library #include<graphics.h> four MinGw compiler you have to download library and have to configure

If you mean GUI, then check out Qt or wxWidjets.