I'm a electro-mechanical student and for I currently work on my degree's project.
I have to make an GUI application which is much like the Whiteboard. Your's is really very very good. But I don't know how to save the canvas content as a file which could be edited next time, and just like the '.can' of the whiteboard. And my programmation language is also Tcl.
Did you have any tips to help me out ? Or did you have the source code of the whiteboard, I promise I'll not copy it,and just learn how to do it, then make another one.