allout-exposure-change-hook

allout-exposure-change-hook is a variable defined in `allout.el'.
Its value is

nil

• This variable is an alias for `allout-exposure-change-functions'.
• This variable is obsolete since 24.3;
  use `allout-exposure-change-functions' instead.
• This variable may be risky if used as a file-local variable.

Documentation:
Abnormal hook run after allout outline subtree exposure changes.
It is run at the conclusion of `allout-flag-region'.

Functions on the hook must take three arguments:

- FROM -- integer indicating the point at the start of the change.
- TO -- integer indicating the point of the end of the change.
- FLAG -- change mode: nil for exposure, otherwise concealment.

This hook might be invoked multiple times by a single command.

You can customize this variable.