I really hope I haven't gone down a dead-end here. I have a Behaviour that gives the currently selected Color, and the current mouse coordinates, then carries out a task when the mouse is clicked. ...

This is a follow up question to this. I'm using a graphic library in Haskell called Threepenny-GUI. In this library the main function returns a UI monad object. I'm trying to execute a simple print...

I'm using a graphic library in Haskell called Threepenny-GUI. In this library the main function returns a UI monad object. This causes me much headache as when I attempt to unpack IO values into lo...

First of all a disclaimer, I might have misunderstood completely the way threepenny-gui works due to my not so advanced knowledge of Haskell, so take my assertions with a grain of salt. :-) It se...

I recently encountered an error while using threepenny-gui and it was solved by changing the code from pattern match in the do notation with <- to pattern matching with the let notation. Is th...