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18.4 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 , -disabledforeground , -font , -foreground , -fg , -height , -highlightbackground , -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.

18.4.1 Button Methods

In addition to configure and cget , the following methods can be used for Button :

flash

Causes the button to flash from the normal to active state colors.

invoke

Invokes the callback command as if the button were clicked.











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