Brightness through to Tint are all accessed when using tonemap - ie set "ToneMapOn" to true;
Hue uses "HueOn" as true; and colored vignette uses "VigOn" as true;
Did you use these to test them before adjusting the sub properties ?
Viewing post in CopperCube - upgraded API's v2 comments
I don't get an error for VigOn or ToneMapOn but they still does not work.
I get the following errors for the others:
ccbSetSceneNodeProperty: Vig invalid for: Scene
ccbSetSceneNodeProperty: VigColor invalid for: Scene
ccbSetSceneNodeProperty: VigRadius invalid for: Scene
ccbSetSceneNodeProperty: Brightness invalid for: Scene
ccbSetSceneNodeProperty: Contrast invalid for: Scene
etc..