问题描述
这是我要开始工作的源代码:
Here is my source code I'm trying to get to work:
在 Main.hs 中:
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
在 Bindings.hs 中:
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 ()
如果我在我的代码中使用普通的 glut32.dll 并且没有任何 freeglut 扩展,它就可以工作,但我想使用 freeglut 扩展.
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.
当我使用 freeglut.dll 时,将其重命名为 glut32.dll,并将其与我的 .exe 放在同一文件夹中,它给了我错误:
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)
当我以同样的方式使用普通的 glut32.dll 时出现错误:
When I use the normal glut32.dll in the same way I get the error:
main: user error (unknown GLUT entry glutMouseWheelFunc)
推荐答案
必须使用 Mingw 的 freeglut .lib/.dll 或自己编译.
You have to use freeglut .lib/.dll from Mingw or compile it yourself.
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