gtk2hs

I am trying cabal install glib-0.12.3 under my Ubuntu 11.10 using cabal-install 0.10.2. However, it shows the following error messages: setup: The program gtk2hsC2hs version >=0.13.5 is required but the version found at /usr/bin/gtk2hsC2hs is version 0.13.4 cabal: Error: some packages failed to install: glib-0.12.3 failed during the configure step. The exception was: ExitFailure 1 After half an hour's search, I cannot find where this gtk2hsC2hs is. I dug into places like http://code.haskell.org/gtk2hs/tools/c2hs/ , but could not seem to find the right version. How could I upgrade my gtk2hsC2hs

Which is better for developing GUI applications with Haskell, wxWidgets (via wxHaskell ) or GTK (via Gtk2HS )? What are the pros and cons of each? Does it vary depending on which platform you are targeting (I would primarily be working on OS X but would like my programs to work on Linux and Windows too)? [Disclaimer: I am a wxHaskell maintainer] Both are stable and fairly complete GUI bindings, and you could choose either for most projects with confidence. Both have some degree of 'higher-level' Haskell bindings, but in both cases you will need to drop into rather imperative 'C' style coding

I'm not sure if I should say hi or not, being this my first post here. Anyway, I am following the glade tutorial from the gtk2hs website . The code compiled properly but when I try to execute it I get this error. (hellogtk2hs:8670): libglade-WARNING **: Expected <glade-interface>. Got <interface>. (hellogtk2hs:8670): libglade-WARNING **: did not finish in PARSER_FINISH state hellogtk2hs: user error (Pattern match failure in do expression at HelloGtk2Hs.hs:8:8-15) This is my glade file. <?xml version="1.0" encoding="UTF-8"?> <interface> <!-- interface-requires gtk+ 3.0 --> <object class=

I'm trying to make a toy application, just to get my head around how to write event driven programs in Haskell. What I'm trying to do is draw a line to a canvas which moves forward every time a key is pressed (so it's sort of a primordial cursor in a text editor). My problem is I can't work out what the best way to count the number of times the user has pressed a key. Obviously I can't use a global variable like I would in an imperative program so presumably I need to pass the state around on the call stack, but in GTK execution descends into the main loop after each event handler returns and

I did: cabal update cabal install gtk2hs-buildtools But stuck here: >cabal install gtk Resolving dependencies... [1 of 2] Compiling SetupWrapper ( C:\Users\1\AppData\Local\Temp\gtk-0.12.5.4 -4000\gtk-0.12.5.4\SetupWrapper.hs, C:\Users\1\AppData\Local\Temp\gtk-0.12.5.4-4 000\gtk-0.12.5.4\dist\setup\SetupWrapper.o ) [2 of 2] Compiling Main ( C:\Users\1\AppData\Local\Temp\gtk-0.12.5.4 -4000\gtk-0.12.5.4\Setup.hs, C:\Users\1\AppData\Local\Temp\gtk-0.12.5.4-4000\gtk -0.12.5.4\dist\setup\Main.o ) Linking C:\Users\1\AppData\Local\Temp\gtk-0.12.5.4-4000\gtk-0.12.5.4\dist\setup\ setup.exe ... [1 of 2]