how to open an openGL window in MDI style?

i’m making a final college project in openGL which i’m trying to learn alone, its a 3d editor that can perform basic 3d shapes that can be manipulate (rotate ,move, new texture etc.) i learned quite well but i dont know how to combine it to MDI style so i need to define the classes for only to open MDI child that can perform openGL technics

You need a basic MDI framework (either MFC or some other framework) - then you can get a DC from the MDI child window and create a render context from that.