XPLMGetAvionicsBrightnessRheo

XPLMGetAvionicsBrightnessRheo

XPLM_API float      XPLMGetAvionicsBrightnessRheo(
                         XPLMAvionicsID       inHandle);

Returns the brightness setting value, between 0 and 1, for the screen of the cockpit device with the given handle.

    If the device is bound to the current aircraft, this is a shortcut to getting the brightness rheostat value from the `sim/cockpit2/electrical/instrument_brightness_ratio` dataref; this gets the slot in the `instrument_brightness_ratio` array to which the device is bound.

    If the device is not currently bound, this returns the device's own brightness rheostat value.