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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.4 $ -->
<!-- splitted from ./en/functions/ps.xml, last change in rev 1.12 -->
<refentry id="function.ps-get-value">
<refnamediv>
<refname>ps_get_value</refname>
<refpurpose>Gets certain values</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>float</type><methodname>ps_get_value</methodname>
<methodparam><type>resource</type><parameter>psdoc</parameter></methodparam>
<methodparam><type>string</type><parameter>name</parameter></methodparam>
<methodparam choice="opt"><type>float</type><parameter>modifier</parameter></methodparam>
</methodsynopsis>
<para>Gets several values which were set by
<function>ps_set_value</function>. Values are by definition float values.
</para>
<para>
The parameter <parameter>name</parameter> can have the following values.
</para>
<para>
<variablelist>
<varlistentry>
<term><literal>fontsize</literal></term>
<listitem>
<para>
The size of the currently active font or the font whose
identifier is passed in parameter <parameter>modifier</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>font</literal></term>
<listitem>
<para>
The currently active font itself.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>imagewidth</literal></term>
<listitem>
<para>
The width of the image whose id is passed in the parameter
<parameter>modifier</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>imageheight</literal></term>
<listitem>
<para>
The height of the image whose id is passed in the parameter
<parameter>modifier</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>capheight</literal></term>
<listitem>
<para>
The height of a capital M in the currently active font or the font
whose identifier is passed in parameter
<parameter>modifier</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>ascender</literal></term>
<listitem>
<para>
The ascender of the currently active font or the font
whose identifier is passed in parameter
<parameter>modifier</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>descender</literal></term>
<listitem>
<para>
The descender of the currently active font or the font
whose identifier is passed in parameter
<parameter>modifier</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>italicangle</literal></term>
<listitem>
<para>
The italicangle of the currently active font or the font
whose identifier is passed in parameter
<parameter>modifier</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>underlineposition</literal></term>
<listitem>
<para>
The underlineposition of the currently active font or the font
whose identifier is passed in parameter
<parameter>modifier</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>underlinethickness</literal></term>
<listitem>
<para>
The underlinethickness of the currently active font or the font
whose identifier is passed in parameter
<parameter>modifier</parameter>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>textx</literal></term>
<listitem>
<para>
The current x-position for text output.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>texty</literal></term>
<listitem>
<para>
The current y-position for text output.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>textrendering</literal></term>
<listitem>
<para>
The current mode for text rendering.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>textrise</literal></term>
<listitem>
<para>
The space by which text is risen above the base line.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>leading</literal></term>
<listitem>
<para>
The distance between text lines in points.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>wordspacing</literal></term>
<listitem>
<para>
The space between words as a multiple of the width of a space char.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>charspacing</literal></term>
<listitem>
<para>
The space between chars. If charspacing is != 0.0 ligatures will
always be dissolved.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>hyphenminchars</literal></term>
<listitem>
<para>
Minimum number of chars hyphenated at the end of a word.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>parindent</literal></term>
<listitem>
<para>
Indention of the first n line in a paragraph.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>numindentlines</literal></term>
<listitem>
<para>
Number of line in a paragraph to indent if parindent != 0.0.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>parskip</literal></term>
<listitem>
<para>
Distance between paragraphs.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>linenumberspace</literal></term>
<listitem>
<para>
Overall space in front of each line for the line number.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>linenumbersep</literal></term>
<listitem>
<para>
Space between the line and the line number.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>major</literal></term>
<listitem>
<para>
The major version number of pslib.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>minor</literal></term>
<listitem>
<para>
The minor version number of pslib.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>subminor</literal>, <literal>revision</literal></term>
<listitem>
<para>
The subminor version number of pslib.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>psdoc</parameter></term>
<listitem>
<para>
Resource identifier of the postscript file
as returned by <function>ps_new</function>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>name</parameter></term>
<listitem>
<para>
Name of the value.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>modifier</parameter></term>
<listitem>
<para>
The parameter <parameter>modifier</parameter> specifies the resource
for which the value is to be retrieved. This can be the id of a font or
an image.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
Returns the value of the parameter or &false;.
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>ps_set_value</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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