I am trying to figure out how access all the
client area in an evt_paint in a scrolled window.
I have made a little demo program, where I try
to draw 2 parallel lines, and when scrolling
the lines, they should stay parallel and the
distance between them should increse.
But since only the ‘new’ area gets redrawen
the lines don’t become parallel.
How can I fix it so that they becomes parallel?