I want to use the phrase "on-screen" correctly, so I have looked it up on online dictionaries and found it defined as an adverb or adjective but not a prepositional phrase which is a bit confusing considering the results I found in Google Books and the example in the Collins Dictionary which is:
on a screen, esp a computer screen
A simple help menu is available on-screen.
If it is an adverb in the example above, then what does it change/describe?
In the Cambridge Dictionary, it means:
On-screen: adjective, adverb [ not gradable ] US
on the screen of a television or computer:
I easily adjusted the colors by using the on-screen menu.
As it means literally on the screen of a computer, would the sentence be correct if it was rewritten like this:
I easily adjusted the colors by using the menu on-screen.
Does in its original version act as an adjective, and would it act in the second one as an adverb or prepositional phrase?
The sentence I want to use the phrase in:
Her eyes would be set on-screen.
Is this a correct usage of the phrase, and what would it function as?