drawWindowGetPointer raises "NonExhaustivePattern" or something...

[guest]

..when called inside a callback for onScroll... anyways in Events.hsc there is that little function "toModifier" which is used for everything else and that works. It have a nice comment:

-- Turn an int into a modifier.
--
-- * Use instead of (toFlags . fromIntegral) since the latter will fail
--   if flags are set for which no constructor exists
--

which is exactly what gets done in DrawWindow.hsc.pp, and then the error. I would gladly post a patch, but I'm not very skilled on making patches. The obvious fix however worked for me:

• Export toModifier in the Events module
• import it in DrawWindow
• change (toEnum (fromIntegral m) ) by toModifier (... m). The three dots represents my ugly hack for converting a Word to a CInt.

[axel]

I remember that we've fixed this. Duplicate of #1125.

[Alvaro]

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