NAME

focus − change or query keyboard focus

SYNOPSIS

focus ?what? 

DESCRIPTION

With no arguments, focus returns the name of the widget to which keyboard events are currently delivered, known as the keyboard focus. When given an argument, focus changes the keyboard focus.  If what is the name of a widget, that widget will be made the keyboard focus.  If what is next, the keyboard focus will be changed to the next item in the focus order for that window. If what is previous, the keyboard focus will be changed to the previous item in the focus order for that window. The focus order is determined automatically by Tk.