Can the Apache detect infrared (IR) lock? Can the Apache, regardless if it's the AH-64E/D (US) or AH1 Longbow (UK), detect IR lock?

I am aware that the Wildcat AH1, Merlin HC3/4 and AH1 Longbow share the same defensive systems that can detect IR missile launch. However, I have yet to find any information suggesting any of these aircraft can detect an IR lock from a fire control system of another aircraft.
I think I have answered my own question from a little bit of research. 

Warfare systems such as Laser and Radar are detectable because they are active emissions (i.e. They have to make their own emission, wait for it to reflect back, then lock onto it).

Visual and Infrared are not easily detectable because they are passive. The IR Launcher or TV-Guided missile only requires the targets emission to lock onto, not its own in the example above, so there is no way you can detect being locked onto.