How can I pass a callback to a Libre office macro

Question

Is it possible to pass a callback procedure to a Libre Office macro written in basic? For example, (a) to write a macro that applies processing specified by the caller to every cell in a range determined by the macro or (b) to compare strings using a passed function to determine whether two characters should be considered equivalent.

Given that in my macros I can call Calc functions by their names with com.sun.star.sheet.FunctionAccess and Uno functions with com.sun.star.frame.DispatchHelper, I thought I might be able to do something similar to call my own macros, and so pass in the name of the macro, but I have been unable to find anything about this. I also tried using sheet.FunctionAccess to call my own macros, but (perhaps unsurprisingly) could not get that to work.