RE: Evaluate hypothesis of using GDI+ for the Windows platform - [General Use]
"'MacArthur, Ian (Leonardo, UK)' via fltk.coredev"
Mar 04, 2021
This effect is visible regardless of selected scheme, so the underlying issue may be the window buffering - basically it would seem that GDI+ really only works for double_windows...
We may say that few FLTK window redraws can use as many antialiased oblique lines as with test/doublebuffer.exe,
so the time delay introduced by GDI+ should be hardly perceivable.
OK - on this laptop it is *very* perceivable!
I'll try and grab a video, if I can remember what I did before…
See attached - TBH this doesn't really show the full effect - I think the screen capture is only getting "some" of the frames - in "real life" I see a much more
"progressive" fill, with each line visible.
The double_window version is basically instant; much faster than this.
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