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

The type of frame according to the documentation is frame :: [Prop http://hackage.haskell.org/package/wx-0.92.1.0/docs/Graphics-UI-WX-Attribute... (Frame http://hackage.haskell.org/package/wx-0.92.1.0/docs/Graphics-UI-WX-Frame.htm... ())] -> IO http://hackage.haskell.org/package/base-4.8.1.0/docs/System-IO.html#t:IO ( Frame http://hackage.haskell.org/package/wx-0.92.1.0/docs/Graphics-UI-WX-Frame.htm... ()). Maybe the documentation you are looking at is out of date? On Sat, Nov 21, 2015 at 8:28 AM, Jason J. Corso wrote:

Hi:

I'm new to Haskell and to wxHaskell (but found playing with wxHaskell to be a nice mid-ground between my years of imperative experience and the pure functional). Thanks for the help.

I wrote the following code to create a set of staticText widgets by mapping the layout over a list. Easy enough...

module Main where import Graphics.UI.WX main :: IO () main = start gui 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)]

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

Thank you in advance, Jason _______________________________________________ Beginners mailing list Beginners@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/beginners