Excellent, thank you Marc your advice worked perfectly. For reference the corrected code reads:
import Graphics.UI.GLUT main = do getArgsAndInitialize createWindow "" actionOnWindowClose $= ContinueExectuion mainLoop
Dave,
On 31/07/07, Marc A. Ziegert
in old glut, the main loop was the core of the single threaded program. exiting it did mean to exit the program completely. in freeglut, you have alternatives. but for compatibility, it defaults to the old behaviour.
http://haskell.org/ghc/docs/latest/html/libraries/GLUT/Graphics-UI-GLUT-Begi...
- marc
Am Dienstag, 31. Juli 2007 19:16 schrieb Dave Tapley:
Hi everyone, I have the following skeleton GLUT code:
import Graphics.UI.GLUT main = do getArgsAndInitialize createWindow "" mainLoop
It loads into both hugs and ghci fine and when 'main' is evaluated an empty window opens as expected. However when closing the window (clicking the window manager's x button) both hugs and ghci exit with the window, as opposed to returning to the the 'Main>' prompt.
I suspect I need some callback to exit the GUI cleanly?
Cheers, Dave _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe