build an app on os x to clear the gamma lut of display 1 or 2

I need an app (which can have a UI or can run on the command line), very simple, that will clear the LUT of the graphic card of Display 1 or Display 2 attached to the mac ## Deliverables I don't necessarily need an app with a gui, just a shell command such as /usr/local/binresetlut 1 or? /usr/local/binresetlut 2 would fit me perfectly Apple has documented the ColorSync API here :? [login to view URL] the function that is interesting for us is? `<a href="[login to view URL]" style="color: rgb(0, 51, 102); text-decoration: none;">CMSetGammaByAVID</a>`? I have this sample code that might help you getting started. - (void) linearizeLUT: (id) sender { ? ? CMError? ? err? ? ? = noErr; ? ? CMVideoCardGamma? ? gamma; ? ? Fixed? ? baseGamma? ? = FloatToFixed(1.0); ? ? Fixed? ? minGamma? ? = FloatToFixed(0.0); ? ? Fixed? ? maxGamma? ? = FloatToFixed(1.0); ? ? ? ? ? [login to view URL] ? = cmVideoCardGammaFormulaType; ? ? [login to view URL] ? = baseGamma; ? ? [login to view URL] = minGamma; ? ? [login to view URL] = maxGamma; ? ? [login to view URL] ? = baseGamma; ? ? [login to view URL] ? = minGamma; ? ? [login to view URL] ? = maxGamma; ? ? [login to view URL] ? = baseGamma; ? ? [login to view URL] = minGamma; ? ? [login to view URL] = maxGamma; ? ? ? ? ? err = CMSetGammaByAVID((DisplayIDType)CGMainDisplayID(), &gamma); ? ? ? ? ? if ( err == noErr ) ? ? { ? gLUTCleared = true;? ? ? } }