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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<refentry xml:id="function.ncurses-init-color" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>ncurses_init_color</refname>
<refpurpose>Define a terminal color</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>int</type><methodname>ncurses_init_color</methodname>
<methodparam><type>int</type><parameter>color</parameter></methodparam>
<methodparam><type>int</type><parameter>r</parameter></methodparam>
<methodparam><type>int</type><parameter>g</parameter></methodparam>
<methodparam><type>int</type><parameter>b</parameter></methodparam>
</methodsynopsis>
<para>
Defines or redefines the given color. When this function is called, all
occurrences of the given color on the screen, if any, immediately change
to the new definition.
</para>
<para>
Color capabilities must be supported by the terminal and initialized using
<function>ncurses_start_color</function> prior to calling this function.
In addition, the terminal must have color changing capabilities; use
<function>ncurses_can_change_color</function> to check for this.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>color</parameter></term>
<listitem>
<para>
The identification number of the color to redefine. It may be one of
the default color constants.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>r</parameter></term>
<listitem>
<para>
A color value, between 0 and 1000, for the red component.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>g</parameter></term>
<listitem>
<para>
A color value, between 0 and 1000, for the green component.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>b</parameter></term>
<listitem>
<para>
A color value, between 0 and 1000, for the blue component.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns <literal>-1</literal> if the function was successful,
and <literal>0</literal> if ncurses or terminal
color capabilities have not been initialized or the terminal does not
have color changing capabilities.
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>ncurses_color_content</function></member>
<member><function>ncurses_start_color</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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