I did on the C64, prob more than 1K mind you. It allowed you to create a bordered window of any size and colour, write text directly to it and when it was clos

I did on the C64, prob more than 1K mind you. It allowed you to create a bordered window of any size and colour, write text directly to it and when it was closed, as if by magic, the text that was behind it was still there! I think you could have 8 such windows open at the same time. I was rather pleased with it at the time.