Pad++ Programmer's Guide
PadDraw is contained in the draw subdirectory of the Pad++ distribution. It is intended to be both a sample application for experimenting with the Pad++ widget from a user's level - as well as being a model for the developer of new Pad++ applications. There are several files that may be useful to the application programmer. In particular, events.tcl contains all the event-handler code that can be used for creating panning and zooming behavior.
Copyright Computer Science Department, The University of New Mexico