PureBasic Forums - English

Restored from previous forum. Originally posted by PB.

I'm using a window callback procedure to redraw some lines on my window after
they're covered, but I've run into a problem when I open a second window with
lines: they are not redrawn when covered. I have two callback procedures, one
for each window, and each with different names, but they don't seem to work
together, leading me to conclude that a single app can only have one callback.

Is that right? Or am I doing something wrong? Can someone show me how to open
two windows with a line on each, and have the lines redrawn after being covered?

Thanks!

PB - Registered PureBasic Coder