RosettaCodeData/Task/Draw-a-pixel/FutureBasic/draw-a-pixel.basic

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void local fn BuildWindow
CGRect r = fn CGRectMake( 0, 0, 320, 240 )
window 1, @"Single Pixel", r, NSWindowStyleMaskTitled + NSWindowStyleMaskClosable
oval fill fn CGRectMake( 100-0.5, 100-0.5, 1, 1 ), fn ColorRed
end fn
void local fn DoDialog( ev as long, tag as long, wnd as long )
select ( ev )
case _windowWillClose : end
end select
end fn
on dialog fn DoDialog
fn BuildWindow
HandleEvents