I have to manage detection when serial (print) device is off (automtic power down for example).
However, when I define permanent paired connection between IPAQ and this device, neither I get any exception when trying to write to temporaray unavailable device, neither anything else..
(I tried to use 1. try..except on assignfile to com port and rewrite/writeln, 2. ioresult with $i-/$i+ directives, 3. fileexists() ...)