Thread Subject: Virtual keyboard for a GUI

I've developed a GUI that runs on a computer with a touchscreen, which is used as a prototype demo for product. I'd lilke to add a keyboard to the touchscreen. This is a little off-topic for this newsgroup, but does anyone know of a Java virtual keyboard that I could embedd in a MATLAB GUI?

Something like this, but in English rather than Arabic:
http://sourceforge.net/projects/virtualkey/

I'm assuming if it was Java graphics object, then I could use it in a MATLAB GUI because I have seen examples of this on the file exchange, but I have never done any programming in Java. I need it to work on Mac, but perferably Mac and Windows.

If I can't find anything, I'll just go back to laying out the keyboard using Pushbuttons.

Thanks.