TclSigX is a client for the SigX dynamic signature image system. It gathers infomation from your computer and sends it to the SigX server. TclSigX works best on Linux but also works on other POSIX systems. SigX info can be found at http://sigx.yuriy.net
QuickTimeTcl is an extension package to Tcl/Tk that runs on Mac OS Classic, Mac OS X, and Windows. It provides a high level interface to QuickTime from Tcl for both application development and scripting from console.