12-06-2022, 05:42 AM
Indeed. QBasic needed tricks to make up for lack of speed. Page flipping allowed the next animation to be built in the background, and then flipped to the visual page. The effect avoided flickering. QB64 is so much faster the flipping, although still available, is not often needed. In QBasic, I even used page flipping on SCREEN 0. Without it, even simple menus had some noticeable flickering.
Pete
Pete