tk_setPalette(3tk) Tk Built-In Commands tk_setPalette(3tk)
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NAME
tk_setPalette, tk_bisque - Modify the Tk color palette
SYNOPSIS
tk_setPalette background
tk_setPalette name value ?name value ...?
tk_bisque
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DESCRIPTION
The tk_setPalette procedure changes the color scheme for Tk. It does
this by modifying the colors of existing widgets and by changing the
option database so that future widgets will use the new color scheme.
If tk_setPalette is invoked with a single argument, the argument is the
name of a color to use as the normal background color; tk_setPalette
will compute a complete color palette from this background color. Al-
ternatively, the arguments to tk_setPalette may consist of any number
of name-value pairs, where the first argument of the pair is the name
of an option in the Tk option database and the second argument is the
new value to use for that option. The following database names are
currently supported:
activeBackground foregroundselectColor
activeForeground highlightBackgroundselectBackground
background highlightColor selectForeground
disabledForeground insertBackgroundtroughColor
tk_setPalette tries to compute reasonable defaults for any options that
you do not specify. You can specify options other than the above ones
and Tk will change those options on widgets as well. This feature may
be useful if you are using custom widgets with additional color op-
tions.
Once it has computed the new value to use for each of the color op-
tions, tk_setPalette scans the widget hierarchy to modify the options
of all existing widgets. For each widget, it checks to see if any of
the above options is defined for the widget. If so, and if the op-
tion's current value is the default, then the value is changed; if the
option has a value other than the default, tk_setPalette will not
change it. The default for an option is the one provided by the widget
([lindex [$w configure $option] 3]) unless tk_setPalette has been run
previously, in which case it is the value specified in the previous in-
vocation of tk_setPalette.
After modifying all the widgets in the application, tk_setPalette adds
options to the option database to change the defaults for widgets cre-
ated in the future. The new options are added at priority widgetDe-
fault, so they will be overridden by options from the .Xdefaults file
or options specified on the command-line that creates a widget.
The procedure tk_bisque is provided for backward compatibility: it re-
stores the application's colors to the light brown (“bisque”) color
scheme used in Tk 3.6 and earlier versions.
KEYWORDS
bisque, color, palette
Tk 4.0 tk_setPalette(3tk)
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