Get windows build number in Haskell

Question

How can I get windows build number in Haskell? I think I can use readProcess and ver, but maybe there are more clear methods.

score 2 · Answer 1 · answered Mar 09 '19 at 15:31

2

Is there a native C function in WinAPI that returns Windows build number?

If yes, you can easily call it from Haskell using ForeignFunctionInterface extension.

answered Mar 09 '19 at 15:31

arrowd

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score 1 · Accepted Answer · answered Mar 09 '19 at 18:59

1

The Win32 package seems to allow to access the build number, within the IO monad. Untested.

import System.Win32.Info.Version -- from Win32 package

main :: IO ()
main = do
   osVersionInfo <- getVersionEx
   print (dwBuildNumber osVersionInfo)

answered Mar 09 '19 at 18:59

chi

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Isn't it an overkill for such simple task? – Malyutin Egor Mar 10 '19 at 09:06
@MalyutinEgor Overkill? Why do you think that? It couldn't be much simpler than that: importing a single library and using one library function to query OS information. Further, it's also way more efficient than spawning an external process to call `ver`, and parsing the output. – chi Mar 10 '19 at 09:23

Get windows build number in Haskell

2 Answers2