On Thursday 13 November 2008 03:24:29 Conal Elliott wrote:
I'm looking for a way to use MainLoopReturns when freeglut is present and not when it isn't. I could use some help. I figure that the implementation has some way to generate that error message, and maybe we could similarly just do a standard ungraceful exit if freeglut is missing.
The great thing about MainLoopReturns is that it plays nicely with ghci. Closing a window returns to ghci for more fun.
Some more info at http://trac.haskell.org/FieldTrip/ticket/8 .
Any ideas?
Currently the GLUT binding uses dynamic lookup to get freeglut-only API entries (see /GLUT/Graphics/UI/GLUT/Extensions.hs, cbits/HsGLUT.c, include/HsGLUTExt.h) and uses throwIfNull to test for non-existent API entries. Therefore, e.g. actionOnWindowClose should throw an exception when "classic" GLUT is used. I am not sure if I understand your request: Do you want a new API entry for the GLUT binding or a different behavior of the current entries? Cheers, S.