O'Reilly logo

Mastering Perl/Tk by Nancy Walsh, Stephen Lidie

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Translating Indexes

The index method translates an index specification (such as "active") into the numerical equivalent. For instance, if the Listbox contains 12 items, $index = $lb->index("end") sets the variable $index to 11. (Remember the first item in a Listbox is at index 0.)

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required