I have pushed a patch to https://patch-tag.com/r/hamish/gtk2hs/home that
adds the missing "draw" event needed to use cairo. It uses the cairo
"Render" monad.
You should be able to replace "onExpose" events with something like...
someWidget `on` draw $ do
moveTo 0 0
lineTo 10 10
The patch also adds "Region" and "RectangleInt" cairo types.
If you have time, please try it out and let me know if it works
ok for you.
Thanks,
Hamish
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