Proper way to program GUI's using object oriented programming

File: guiprogramming.png (103KB, 771x741px)

103KB, 771x741px

When one is programming a GUI interface using object oriented programming (in this case, gtk libraries) what is the preferred method to creating multiple consecutive windows?

For example, user has to do a step 1 2 and 3, and all 3 steps are being done using separate windows.

Should i create separate classes for each window and then just overwrite the memory used by the old window every time I instantiate a new window? (Creating 3 consecutive objects from smaller classes, one for each window, with each object overwriting the previous when constructed)

or

Should I instead destroy the original window and redraw the new window in its place, thus reusing the original object over and over? (This method uses one large object construct from one class which handles all 3 windows within itself)