Re: [Haskell-beginners] help with type error in a wxHaskell program

Thank you both for the help. There was another mistake after this piece. The let s = map... led to a [IO (StaticText())] and it had to be changed as below. The below code works. Thanks again. module Main where import Graphics.UI.WX main :: IO () main = start gui gui :: IO () gui = do f <- frame [text := "First Fix!"] ss <- mapM (\t -> staticText f [text := show t]) [1..10] set f [layout := margin 10 ( row 2 $ map (\x -> (widget x)) ss)] Jason On Sat, Nov 21, 2015 at 10:52 PM, Kim-Ee Yeoh wrote:

On Sat, Nov 21, 2015 at 8:28 PM, Jason J. Corso wrote:

...

But, I get a type error that I do not understand

Couldn't match expected type ‘IO (Window a0)’ with actual type ‘[Prop (Frame ())] -> IO (Frame ())’ Probable cause: ‘frame’ is applied to too few arguments

This is a consequence of the line "f <- frame" in

gui :: IO () gui = do f <- frame let s = map (\t -> staticText f [text := show t]) [1..10] set f [layout := margin 10 ( row 2 $ map (\x -> (widget x)) s)]

I have no experience at all with wxHaskell. But for the sake of forward motion, substituting with "f <- frame []" should work.

-- Kim-Ee

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