Here the instruction on how to install Gtk+ for Perl on Windows.
There are two options:
1. Simply download and setup CamelBox:
2. Using ActivePerl:
+ Download and install ActivePerl: https://www.activestate.com/activeperl/downloads/
+ Download and install Gtk+ Environment for Windows: http://cdnetworks-kr-2.dl.sourceforge.net/project/gladewin32/gtk%2B-win32-runtime/2.8.20/gtk-2.8.20-win32-1.exe
+ Open command and type:
ppm repo add http://www.lostmind.de/gtk2-perl/ppm/
ppm install Gtk2
+ Finally, restart your Windows
There are many ways but those two are the best options of all that I prefer.
Have fun!