[libreoffice-users] How may I read the value of a cell into a macro variable?

This question has two parts: simple and more complex:

simple: I wish to read the value of the currently selected cell (in Calc,  
of course) into a variable in the macro language (Libre Basic).  Script  
example please. and thank you!

more complex: AFAIK the LibreHelp does not document the stuff like:

dispatcher.executeDispatch(document, ".uno:GoToCell", "", 0, args2())

I used to be pretty skilled at recording macros and then modifying them.  
Where do I go to find things related to "uno:GoToCell"?  Universal Network  
Objects?  Can't find the "starting point".

Thank you for an orientation,
--
David S. Crampton

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