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label(n) Tk Built-In Commands label(n)
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NAME
label - Create and manipulate label widgets
SYNOPSIS
label pathName ?options?
STANDARD OPTIONS
-activebackground -disabledforeground -padx
-activeforeground -font -pady
-anchor -foreground -relief
-background -highlightbackground -takefocus
-bitmap -highlightcolor -text
-borderwidth -highlightthickness -textvariable
-compound -image -underline
-cursor -justify -wraplength
See the options manual entry for details on the standard options.
WIDGET-SPECIFIC OPTIONS
[-height 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 is not specified, the
label's desired height is computed from the size of the image or bitmap or text being dis-
played in it. [-state state] Specifies one of three states for the label: normal,
active, or disabled. In normal state the button 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. [-width 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 charac-
ters. If this option is not specified, the label's desired width is computed from the
size of the image or bitmap or text being displayed in it.
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DESCRIPTION
The label command creates a new window (given by the pathName 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 pathName argument. At the time
this command is invoked, there must not exist a window named pathName, but pathName's par-
ent must exist.
A label is a widget that displays a textual string, bitmap or image. If text is dis-
played, 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 com-
mands described below.
WIDGET COMMAND
The label command creates a new Tcl command whose name is pathName. This command may be
used to invoke various operations on the widget. It has the following general form:
pathName option ?arg arg ...?
Option and the args determine the exact behavior of the command. The following commands
are possible for label widgets:
pathName cget option
Returns the current value of the configuration option given by option. Option may
have any of the values accepted by the label command.
pathName configure ?option? ?value option value ...?
Query or modify the configuration options of the widget. If no option is speci-
fied, returns a list describing all of the available options for pathName (see
Tk_ConfigureInfo for information on the format of this list). If option is speci-
fied with no value, then the command returns a list describing the one named option
(this list will be identical to the corresponding sublist of the value returned if
no option is specified). If one or more option-value pairs are specified, then the
command modifies the given widget option(s) to have the given value(s); in this
case the command returns an empty string. Option may have any of the values
accepted by the label command.
BINDINGS
When a new label is created, it has no default event bindings: labels are not intended to
be interactive.
EXAMPLE
# Make the widgets
label .t -text "This widget is at the top" -bg red
label .b -text "This widget is at the bottom" -bg green
label .l -text "Left\nHand\nSide"
label .r -text "Right\nHand\nSide"
text .mid
.mid insert end "This layout is like Java's BorderLayout"
# Lay them out
pack .t -side top -fill x
pack .b -side bottom -fill x
pack .l -side left -fill y
pack .r -side right -fill y
pack .mid -expand 1 -fill both
SEE ALSO
labelframe(n), button(n), ttk::label(n)
KEYWORDS
label, widget
Tk 4.0 label(n)
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On Apache
Under GNU General Public License
2024-04-19 12:22 @3.138.33.87 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)