The tkx module provides yet another tk interface for perl. tk is a gui toolkit tied to the tcl language, and tkx provides a bridge to tcl that allows tk based applications to be written in perl.

the main idea behind tkx is that it is a very thin wrapper on top of tcl, i.e. that what you get is exactly the behaviour you read about in the tcl/tk documentation with no surprises added by the perl layer.

for a gentle introduction please read the tkx::tutorial. the tutorial at http://www.tkdocs.com/tutorial/ is also strongly recommended.