Make a completely new project with linker settings for Qt (www.stroustrup.com/programming.html).
Using the facilities of Graph_lib, type in the line-drawing program from §14.5 and get it to run.
Modify the program to use a pop-up menu as described in §14.5.2 and get it to run.
Modify the program to have a second menu for choosing line styles and get it to run.