On Sun, 2008-05-18 at 19:26 +0100, Ben Arnold wrote:
I'm running Windows Vista and I've been trying to set up an environment for writing GUI applications.
A Google search pointed me at two major GUI toolkits for Haskell: gtk2hs and wxHaskell.
I started with gtk2hs. The installation instructions were straightfoward and easy to follow, but they just didn't work. The installer did nothing. It opened a command window and immediately terminated. When I ran it from a command window it terminated immediately, apparently doing nothing at all. Running as Administrator didn't help. There was no error message, the log file option didn't generate a log file and Googling for a solution didn't come up with anything.
There's definitely something weird going on there. I've not personally tested on Vista but I've not heard any other reports of it not working. Are you sure the download of the installed completed successfully? If it exits immediately it sounds like a busted download. Do you have any way of checking it? Perhaps just the file length if there's no easy way of doing md5 on windows. Since you're now using ghc 6.8.2 you'll want this build of gtk2hs which works with that version of ghc: http://haskell.org/~duncan/gtk2hs/gtk2hs-0.9.12.1.exe length: 13,651,002 bytes md5: e48ea30426396bf162106ffcda02847f
Which is nice, except that when I call "main" twice in succession from GHCi, ghc.exe crashes. So I have no confidence in the wxHaskell libraries either. I don't want to invest time in programming with libraries that perform illegal operations on my operating system.
Note that Gtk2Hs does not suffer from the problem of calling main twice in ghci. Duncan