Gamma?

BlitzMax Forums/BlitzMax Beginners Area/Gamma?

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You can do it on Windows using the GetDeviceGammaRamp() and SetDeviceGammaRamp() methods from Gdi32.lib. More here:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/icm/icm_8ckw.asp

No idea how you might do it on Mac and Linux tho.