On 08.05.2008, at 21:18, Lukasz wrote:
> As to motivation, I'm doing some weird stuff because I want to have  
> nice
> crosshairs on the plot without any jerkiness.


Oh, yes, that can get quite involved.

Did you look at Fl_Overlay_Window though? Maybe you can draw the  
crosshair in the overlay and then never be bothered with it again?

Matthias

----
http://robowerk.com/


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