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To redraw the screen, the easiest way (and perhaps the better after calculating a zone filling) is just: DrawPanel->Refresh() from your function what fills the zone;
Thanks a lot, I'll do the corrections.One more thing: can you confirm that zone segments generated by Genere_Zone_Segments() are ALWAYS in the top->bottom or left->right direction (i.e. segments with bottom->up or right->left direction are never generated). Because if this is true, I can skip some checks in optimizations I'm writing.
Best regards, Gabriele.
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