Okay, I'm at last home, and so I wrote the small example of the calculator. (sorry, javascript can't create correct link in ibrowse) There is the executable (http://www.tbs-software.com/powerd/mui/calc), small grab (http://www.tbs-software.com/powerd/mui/calc.png) and the sourcecode itself (http://www.tbs-software.com/powerd/mui/calc.d) in PowerD... It's comment free, I suppose, that for basic comparation it's useless to write comments...

Bye, MarK.