Tk: A User Interface Tcl Extension

Tk is a Tcl extension that supports Motif-compliant GUI widgets.

• Object oriented: new widgets are new commands.
• Widgets are arranged in a hierarchy.
• Configuration of a widget can be changed at any time.
• Geometry managers place widgets relative to one another.
• User interaction mediated through callbacks.

 
• Widgets and User Interaction
• Hello World in Tk
• An Extended Tk Example