Luc Thomaere has released an open source Calendar Class to use in your
REALbasic projects. It is based on the canvas class and is compatible with
Mac OS 9.x, Mac OS X and Win. The download is accompanied by a sample
project to demonstrate the power of the calendar class. As it is open
source, you can use it, learn from it and change it as you like. Download
at: (http://www.thomaere.com/download).