Here is my source code I'm trying to get to work:
In Main.hs:
import Graphics.Rendering.OpenGL
import Graphics.UI.GLUT
import Bindings
import Data.IORef
main = do
(progname,_) <- getArgsAndInitialize
createWindow "Hello World"
reshapeCallback $= Just reshape
keyboardMouseCallback $= Just keyboardMouse
angle <- newIORef 0.0
displayCallback $= display
idleCallback $= Just idle
mouseWheelCallback $= Just mouseWheel
mainLoop
In Bindings.hs:
module Bindings where
import Graphics.Rendering.OpenGL
import Graphics.UI.GLUT
display :: IO ()
display = return ()
overlayDisplay :: IO ()
overlayDisplay = return ()
visibility :: Visibility -> IO ()
visibility v = return ()
reshape :: Size -> IO ()
reshape s@(Size w h) = do
viewport $= (Position 0 0, s)
close :: IO ()
close = return ()
keyboardMouse :: Key -> KeyState -> Modifiers -> Position -> IO ()
keyboardMouse key state modifiers position = return ()
mouseWheel :: WheelNumber -> WheelDirection -> Position -> IO ()
mouseWheel wn wd p = return ()
idle :: IO ()
idle = return ()
It works if I use normal glut32.dll and none of the freeglut extensions in my code, but I want to use the freeglut extensions.
When I use freeglut.dll, rename it to glut32.dll, and put it in the same folder as my .exe, it gives me the error:
main: user error (unknown GLUT entry glutInit)
When I use the normal glut32.dll in the same way I get the error:
main: user error (unknown GLUT entry glutMouseWheelFunc)