Is there something like `on-display-functions'?

[Alan Mackenzie]

Hi, Emacs,

Is there some hook called each time something's about to be displayed on
the screen (regardless of whether or not font-lock is enabled)?

If there is, I could use it to apply the appropriate text properties to
C++ template delimiters as they're about to be displayed, thus
potentially speeding up startup for C++ (and like languages).

Yes, I've tried searching for it and not found it.

-- 
Alan Mackenzie (Nuremberg, Germany).