Practical Programming in Tcl & Tk, Third Edition By Brent B. Welch
Table of Contents
Chapter 48. Tcl 7.4/Tk 4.0
The selection support has been generalized in Tk 4.0 to allow use of other selections such as the CLIPBOARD and SECONDARY selections. The changes do not break anything, but you should check out the new clipboard command. Some other toolkits, notably OpenLook, can only paste data from the clipboard. Chapter 35 describes the selection starting at page 507.
