Perl in a Nutshell, 2nd Edition

The Button Widget

Create a simple button with the Button method:

$parentwidget->Button (options)

The standard configuration options that apply to Button are: -activebackground, -activeforeground, -anchor, -background, -bg, -bitmap, -borderwidth, -bd, -cursor, -default, -disabledforeground, -font, -foreground, -fg, -height, -highlight-background, -highlightcolor, -highlightthickness, -image, -justify, -padx, -pady, -relief, -state, -takefocus, -underline, -width, and -wraplength.

Other options are:

-command => callback

Pointer to a function that will be called when the button is pressed.

-text => ' text '

Defines the text string displayed on the button. See also -textvariable.

-textvariable => \$ variable

Points to the variable containing text to be displayed in the button. Button text will change as $ variable does.