Exciting! But on a mac, I can't get the window to become focussed or accept input. Tips ? I don't have a Mac, but I heard that GLFW is not without problems there, so maybe it's the culprit this time too. Do other GLFW apps work on your machine?

Gergely -- http://www.fastmail.fm - IMAP accessible web-mail

Seems like today FRP is the last word in game programming with Haskell. Do you know something that could be a good tutorial, or at least introduction to FRP ? Something that could somewhat help me learn the ropes, 'cause I'm afraid if I dive directly into your code I'm gonna be lost. I don't think there's any material on FRP that could be considered a general tutorial, because there are many flavours with smaller and bigger differences, and no-one really seems to know how to program in this manner beyond toy examples. So, for the time being, I'd probably start with the original Fran paper [1], which is quite accessible in my opinion, and even though some of the details are obsolete, it explains the basics reasonably well. The Yampa Arcade [2] is probably the best introduction to the arrow-based approach (AFRP). The new Reactive paper [3] is not beginner friendly, but if you already grokked Fran, it shouldn't be too hard to follow, and it describes a way to design an applicative style reactive library with a much cleaner interface than that of Fran.

Gergely [1] http://conal.net/papers/icfp97/ [2] http://www.haskell.org/yale/papers/haskell-workshop03/index.html [3] http://conal.net/papers/push-pull-frp/ -- http://www.fastmail.fm - A fast, anti-spam email service.

On Feb 12, 4:22 am, Simon Michael wrote:

Exciting! But on a mac, I can't get the window to become focussed or accept input. Tips ?

Tips: $ cabal install mkbndl $ cd ~/.cabal/bin $ mkbndl dow $ open Dow.app Ok, but you need to click the right control key to select stuff on the menu, and you probably only have a left control key, so: $ cd $ tar xvzf ~/.cabal/packages/hackage.haskell.org/dow/0.1.0/ dow-0.1.0.tar.gz $ cd dow-0.1.0/src $ head -n 86 Main.hs > tmp $ echo " kt1 <- getKey ' '" >> tmp $ tail -n 7 Main.hs >> tmp $ cp tmp Main.hs $ cd .. $ cabal install $ cd ~/.cabal/bin $ mkbndl -f dow $ open Dow.app

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On Sat, Feb 13, 2010 at 09:49:53PM +0100, Henk-Jan van Tuyl wrote:

I tried it, but after briefly displaying a window, the program terminates with the message: dow: user error (unknown OpenGL extension entry glTexParameteri, check for OpenGL 3.1)

I suppose the program needs a newer version than is supplied with Windows (opengl.org states that Microsoft always includes an old version of OpenGL [1]) Does anybody know how to deal with this?

Just a thought: maybe it is something else. That function appears to exist since Windows 95 according msdn[1] and OpenGL 1.1[2]. [1] http://msdn.microsoft.com/en-us/library/dd368641(VS.85).aspx [2] http://www.talisman.org/opengl-1.1/Reference/glTexParameter.html HTH, -- Felipe.