so i am creating a game for my c++ class and no one has been able to tell me how to build a pop up box that has "x" of buttons that are designed to have the function of a menu.

Ex: A window pops up during the program asking which version of the game to play and by clicking on a button, link it to a certain function in the coding to play that version(like setting it to a variable)

any help would be greatly appreciated! thanks