windows - Can't load OpenGL procs, but only from Haskell -


I have a problem after changing Haskell to some C ++ code on Windows. The code works fine in C ++, but fails to load an OpenGL function in Haskell, i.e. 

  user error (unknown openGL extension entry glagvertxerre, checking of openGL 3.1) < / Code>

While the function works fine in C ++ (where I am using glLoadGen). I have loaded both in depend.exe and there is no difference in the use of OpenGL 32.dll.

I am using OpenGLRaw-1.3. 0.0 .

This was trying to call the GL function before calling Graphics .UI .GLFW.makeContextCurrent . An existing reference is required before a GL function is available.


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