We use FreeSans as our default font in our application. When we choose to display characters that aren't contained within the font discription, the standard little block is displayed.

In my xterminal, displaying similar texts will automatically select a different font that can display the chosen font. How can I achieve similar functionality in Qtopia? An alternative is to use a font as cyberbit or something else, but it would be the best if Qtopia can switch the font itself similar to my xterminal.