Re: Cast from and to CChar
Marcin 'Qrczak' Kowalczyk wrote: This is the same - instance Show Char displays non-ASCII characters that way. You get the same effect if you just type ''. Thanks to you and John for the hints. But what is the good reason that show is doing it that way? Wouldn't it be better to output the '' as a '' instead of a code? I thought that Char in Haskell is working with Unicodes? christian ___ Haskell-Cafe mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell-cafe
gtk2hs
Hi! I tried to implement a simple counter with gtk2hs. To increase my counter I defined following event: onClicked btn $ do si - textBufferGetStartIter tb ei - textBufferGetEndIter tb val - textBufferGetText tb si ei False textBufferSetText tb $ show $ (+1) $ read val But now I don't want always read the textfield to get my counter-value, I would like to save the state of my increased value and would like to pass it to the next call of the function. How can I do this? thanks Christian This is the complete code: import Gtk quitDialog :: IO Bool quitDialog = . main :: IO () main = do initGUI --main window win - windowNew onDelete win (\_-(quitDialog= (return . not ))) onDestroy win mainQuit vb - vBoxNew True 5 hb - hBoxNew True 5 btn - buttonNewFromStock stockExecute btn2 - buttonNewFromStock stockQuit tv - textViewNew tb - textBufferNew Nothing textBufferSetText tb 0 textViewSetEditable tv False textViewSetCursorVisible tv False textViewSetBuffer tv tb boxPackStartDefaults vb tv boxPackStartDefaults vb hb boxPackStartDefaults hb btn boxPackStartDefaults hb btn2 hgf - onClicked btn $ do si - textBufferGetStartIter tb ei - textBufferGetEndIter tb val - textBufferGetText tb si ei False textBufferSetText tb $ show $ (+1) $ read val disconnect hgf onClicked btn2 $ do quit - quitDialog if quit then widgetDestroy win else return () containerAdd win vb widgetShowAll win mainGUI ___ Haskell-Cafe mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell-cafe
Fudgets
Hi! Is there any easy way to display an IO String with Fudgets? I know how to display a String: import Fudgets main :: IO () main = fudlogue (shellF Prog showMe) showMe = (Hello `labLeftOfF` displayF) == mapF getString == (buttonF ClickMe!) getString :: Click - String getString Click = World! But if I change the getString-function to: getString :: Click - IO String getString Click = return World! --or any other kind of function which returns an IO String I get an error message. Is there any way, without using unsafePerformIO, to display my IO String? thanks Christian Buschmann ___ Haskell-Cafe mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell-cafe
