Practical Programming in Tcl & Tk, Third Edition By Brent B. Welch
Table of Contents
Chapter 53. Tcl/Tk 8.2
The Web Browser plugin requires changes to the event loop mechanism because Tcl is embedded in an application with its own event loop. While the C APIs have supported this since Tcl 8.0.3, it has been dificult to do this sort of embedding wthout recompiling Tcl. The Tcl_SetNotifier API was added to support embedding a "stock" Tcl interpreter.