Tk::Label (3)

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NAME

Tk::Label - Create and manipulate Label widgets

SYNOPSIS

$label = $parent->Label(?options?);

STANDARD OPTIONS

-activebackground -activeforeground -anchor -background -bitmap -borderwidth -compound -cursor -disabledforeground -font -foreground -highlightbackground -highlightcolor -highlightthickness -image -justify -padx -pady -relief -takefocus -text -textvariable -underline -wraplength

See Tk::options for details of the standard options.

WIDGET-SPECIFIC OPTIONS

Name:        height

Class:      Height

Switch:      -height

Specifies a desired height for the label.
If an image or bitmap is being displayed in the label then the value is in screen units (i.e. any of the forms acceptable to Tk_GetPixels); for text it is in lines of text. If this option isn't specified, the label's desired height is computed from the size of the image or bitmap or text being displayed in it.

Name:  state

Class:      State

Switch:      -state

Specifies one of three states for the label: normal, active, or
disabled. In normal state the label is displayed using the foreground and background options. In active state the label is displayed using the activeForeground and activeBackground options. In the disabled state the disabledForeground and background options determine how the button is displayed.

Name:  width

Class:      Width

Switch:      -width

Specifies a desired width for the label.
If an image or bitmap is being displayed in the label then the value is in screen units (i.e. any of the forms acceptable to Tk_GetPixels); for text it is in characters. If this option isn't specified, the label's desired width is computed from the size of the image or bitmap or text being displayed in it.

DESCRIPTION

The Label method creates a new window (given by the $widget argument) and makes it into a label widget. Additional options, described above, may be specified on the command line or in the option database to configure aspects of the label such as its colors, font, text, and initial relief. The label command returns its $widget argument. At the time this command is invoked, there must not exist a window named $widget, but $widget's parent must exist.

A label is a widget that displays a textual string, bitmap or image. If text is displayed, it must all be in a single font, but it can occupy multiple lines on the screen (if it contains newlines or if wrapping occurs because of the wrapLength option) and one of the characters may optionally be underlined using the underline option. The label can be manipulated in a few simple ways, such as changing its relief or text, using the commands described below.

WIDGET METHODS

The Label method creates a widget object. This object supports the configure and cget methods described in Tk::options which can be used to enquire and modify the options described above. The widget also inherits all the methods provided by the generic Tk::Widget class.

BINDINGS

When a new label is created, it has no default event bindings: labels are not intended to be interactive.

KEYWORDS

label, widget