[Lazarus] "unexpected feature" of TPaintBox

[Vincent Snijders]

Engelbert Buxbaum schreef:
> Hi,
> 
> the code below is part of a program to draw the Mandelbrot-set. It works, if the canvas is small (stamp-size). However, if the size is increased to 800x800, the middle 1/3 of the image is replaced by a vertical grey bar. Any ideas?
> 

What widgetset / OS do you use?

Maybe see: http://bugs.freepascal.org/view.php?id=15822

Vincent