This chapter describes Commodities Exchange, the library of routines used
to add a custom input handler to the Amiga.  With Commodities Exchange,
any program function can be associated with key combinations or other
input events globally allowing the creation utility programs that run in
the background for all tasks.

 custom input handlers                           cxobject errors 
 cxobjects                                       uniqueness 
 installing a broker object                      signal cxobjects 
 cxmessages                                      custom cxobjects 
 commodity tool types                            debug cxobjects 
 filter objects and input description strings    the ix structure 
 connecting cxobjects                            controlling cxmessages 
 sender cxobjects                                new input events 
 translate cxobjects                             function reference