165 lines
15 KiB
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165 lines
15 KiB
HTML
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>gimpgradients</title><meta name="generator" content="DocBook XSL Stylesheets V1.66.1"><link rel="start" href="index.html" title="GIMP Library Reference Manual"><link rel="up" href="libgimp-data.html" title="Data Objects"><link rel="prev" href="libgimp-gimpgradient.html" title="gimpgradient"><link rel="next" href="libgimp-gimppalette.html" title="gimppalette"><meta name="generator" content="GTK-Doc V1.3 (XML mode)"><link rel="stylesheet" href="style.css" type="text/css"><link rel="part" href="gimpdefinitions.html" title="Part I. GIMP Constants"><link rel="part" href="libgimp.html" title="Part II. GIMP Library"><link rel="chapter" href="libgimp-general.html" title="Functions not Related to Specific Images"><link rel="chapter" href="libgimp-image.html" title="Manupulating Images and all their Properties"><link rel="chapter" href="libgimp-data.html" title="Data Objects"><link rel="chapter" href="libgimp-selectors.html" title="Controlling the Core's Selection Dialogs"><link rel="part" href="libgimpui.html" title="Part III. GIMP User Interface Library"><link rel="chapter" href="libgimpui-hierarchy.html" title="Object Hierarchy"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="libgimp-gimpgradient.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td><td><a accesskey="u" href="libgimp-data.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td><td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td><th width="100%" align="center">GIMP Library Reference Manual</th><td><a accesskey="n" href="libgimp-gimppalette.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td></tr></table><div class="refentry" lang="en"><a name="libgimp-gimpgradients"></a><div class="titlepage"></div><div class="refnamediv"><table width="100%"><tr><td valign="top"><h2><span class="refentrytitle">gimpgradients</span></h2><p>gimpgradients — Operations related to gradients.</p></td><td valign="top" align="right"></td></tr></table></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
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<a
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href="../glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> <a href="libgimp-gimpgradients.html#gimp-gradients-refresh">gimp_gradients_refresh</a> (void);
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<a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a>** <a href="libgimp-gimpgradients.html#gimp-gradients-get-list">gimp_gradients_get_list</a> (const <a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a> *filter,
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<a
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href="../glib/glib-Basic-Types.html#gint"
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>gint</a> *num_gradients);
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<a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a>* <a href="libgimp-gimpgradients.html#gimp-gradients-get-gradient">gimp_gradients_get_gradient</a> (void);
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<a
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href="../glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> <a href="libgimp-gimpgradients.html#gimp-gradients-set-gradient">gimp_gradients_set_gradient</a> (const <a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a> *name);
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<a
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href="../glib/glib-Basic-Types.html#gdouble"
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>gdouble</a>* <a href="libgimp-gimpgradients.html#gimp-gradients-sample-uniform">gimp_gradients_sample_uniform</a> (<a
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href="../glib/glib-Basic-Types.html#gint"
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>gint</a> num_samples,
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<a
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href="../glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> reverse);
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<a
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href="../glib/glib-Basic-Types.html#gdouble"
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>gdouble</a>* <a href="libgimp-gimpgradients.html#gimp-gradients-sample-custom">gimp_gradients_sample_custom</a> (<a
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href="../glib/glib-Basic-Types.html#gint"
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>gint</a> num_samples,
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const <a
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href="../glib/glib-Basic-Types.html#gdouble"
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>gdouble</a> *positions,
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<a
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href="../glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> reverse);
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<a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a>* <a href="libgimp-gimpgradients.html#gimp-gradients-get-gradient-data">gimp_gradients_get_gradient_data</a>
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(const <a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a> *name,
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<a
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href="../glib/glib-Basic-Types.html#gint"
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>gint</a> sample_size,
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<a
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href="../glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> reverse,
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<a
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href="../glib/glib-Basic-Types.html#gint"
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>gint</a> *width,
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<a
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href="../glib/glib-Basic-Types.html#gdouble"
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>gdouble</a> **grad_data);
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</pre></div><div class="refsect1" lang="en"><a name="id2639727"></a><h2>Description</h2><p>
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Operations related to gradients.
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</p></div><div class="refsect1" lang="en"><a name="id2639737"></a><h2>Details</h2><div class="refsect2" lang="en"><a name="id2628731"></a><h3><a name="gimp-gradients-refresh"></a>gimp_gradients_refresh ()</h3><a class="indexterm" name="id2628739"></a><pre class="programlisting"><a
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href="../glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> gimp_gradients_refresh (void);</pre><p>
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Refresh current gradients. This function always succeeds.
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</p><p>
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This procedure retrieves all gradients currently in the user's
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gradient path and updates the gradient dialogs accordingly.</p><p>
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</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> TRUE on success.
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</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2628776"></a><h3><a name="gimp-gradients-get-list"></a>gimp_gradients_get_list ()</h3><a class="indexterm" name="id2628785"></a><pre class="programlisting"><a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a>** gimp_gradients_get_list (const <a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a> *filter,
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<a
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href="../glib/glib-Basic-Types.html#gint"
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>gint</a> *num_gradients);</pre><p>
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Retrieve the list of loaded gradients.
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</p><p>
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This procedure returns a list of the gradients that are currently
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loaded. You can later use the 'gimp_context_set_gradient' function
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to set the active gradient.</p><p>
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</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>filter</tt></i> :</span></td><td> An optional regular expression used to filter the list.
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</td></tr><tr><td><span class="term"><i class="parameter"><tt>num_gradients</tt></i> :</span></td><td> The number of loaded gradients.
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</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> The list of gradient names.
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</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2628856"></a><h3><a name="gimp-gradients-get-gradient"></a>gimp_gradients_get_gradient ()</h3><a class="indexterm" name="id2641658"></a><pre class="programlisting"><a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a>* gimp_gradients_get_gradient (void);</pre><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p><tt class="literal">gimp_gradients_get_gradient</tt> is deprecated and should not be used in newly-written code.</p></div><p>
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This procedure is deprecated! Use <a href="libgimp-gimpcontext.html#gimp-context-get-gradient"><tt class="function">gimp_context_get_gradient()</tt></a> instead.</p><p>
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</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> The name of the active gradient.
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</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2641706"></a><h3><a name="gimp-gradients-set-gradient"></a>gimp_gradients_set_gradient ()</h3><a class="indexterm" name="id2641714"></a><pre class="programlisting"><a
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href="../glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> gimp_gradients_set_gradient (const <a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a> *name);</pre><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p><tt class="literal">gimp_gradients_set_gradient</tt> is deprecated and should not be used in newly-written code.</p></div><p>
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This procedure is deprecated! Use <a href="libgimp-gimpcontext.html#gimp-context-set-gradient"><tt class="function">gimp_context_set_gradient()</tt></a> instead.</p><p>
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</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>name</tt></i> :</span></td><td> The name of the gradient to set.
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</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> TRUE on success.
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</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2641777"></a><h3><a name="gimp-gradients-sample-uniform"></a>gimp_gradients_sample_uniform ()</h3><a class="indexterm" name="id2641785"></a><pre class="programlisting"><a
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href="../glib/glib-Basic-Types.html#gdouble"
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>gdouble</a>* gimp_gradients_sample_uniform (<a
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href="../glib/glib-Basic-Types.html#gint"
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>gint</a> num_samples,
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<a
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href="../glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> reverse);</pre><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p><tt class="literal">gimp_gradients_sample_uniform</tt> is deprecated and should not be used in newly-written code.</p></div><p>
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This procedure is deprecated! Use
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<a href="libgimp-gimpgradient.html#gimp-gradient-get-uniform-samples"><tt class="function">gimp_gradient_get_uniform_samples()</tt></a> instead.</p><p>
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</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>num_samples</tt></i> :</span></td><td> The number of samples to take.
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</td></tr><tr><td><span class="term"><i class="parameter"><tt>reverse</tt></i> :</span></td><td> Use the reverse gradient.
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</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> Color samples: { R1, G1, B1, A1, ..., Rn, Gn, Bn, An }.
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</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2646020"></a><h3><a name="gimp-gradients-sample-custom"></a>gimp_gradients_sample_custom ()</h3><a class="indexterm" name="id2646031"></a><pre class="programlisting"><a
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href="../glib/glib-Basic-Types.html#gdouble"
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>gdouble</a>* gimp_gradients_sample_custom (<a
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href="../glib/glib-Basic-Types.html#gint"
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>gint</a> num_samples,
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const <a
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href="../glib/glib-Basic-Types.html#gdouble"
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>gdouble</a> *positions,
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<a
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href="../glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> reverse);</pre><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p><tt class="literal">gimp_gradients_sample_custom</tt> is deprecated and should not be used in newly-written code.</p></div><p>
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This procedure is deprecated! Use <a href="libgimp-gimpgradient.html#gimp-gradient-get-custom-samples"><tt class="function">gimp_gradient_get_custom_samples()</tt></a>
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instead.</p><p>
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</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>num_samples</tt></i> :</span></td><td> The number of samples to take.
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</td></tr><tr><td><span class="term"><i class="parameter"><tt>positions</tt></i> :</span></td><td> The list of positions to sample along the gradient.
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</td></tr><tr><td><span class="term"><i class="parameter"><tt>reverse</tt></i> :</span></td><td> Use the reverse gradient.
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</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> Color samples: { R1, G1, B1, A1, ..., Rn, Gn, Bn, An }.
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</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><a name="id2646134"></a><h3><a name="gimp-gradients-get-gradient-data"></a>gimp_gradients_get_gradient_data ()</h3><a class="indexterm" name="id2646145"></a><pre class="programlisting"><a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a>* gimp_gradients_get_gradient_data
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(const <a
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href="../glib/glib-Basic-Types.html#gchar"
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>gchar</a> *name,
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<a
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href="../glib/glib-Basic-Types.html#gint"
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>gint</a> sample_size,
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<a
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href="../glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> reverse,
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<a
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href="../glib/glib-Basic-Types.html#gint"
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>gint</a> *width,
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<a
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href="../glib/glib-Basic-Types.html#gdouble"
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>gdouble</a> **grad_data);</pre><div class="warning" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Warning</h3><p><tt class="literal">gimp_gradients_get_gradient_data</tt> is deprecated and should not be used in newly-written code.</p></div><p>
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This procedure is deprecated! Use
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<a href="libgimp-gimpgradient.html#gimp-gradient-get-uniform-samples"><tt class="function">gimp_gradient_get_uniform_samples()</tt></a> instead.</p><p>
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</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i class="parameter"><tt>name</tt></i> :</span></td><td> The gradient name (\"\" means current active gradient).
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</td></tr><tr><td><span class="term"><i class="parameter"><tt>sample_size</tt></i> :</span></td><td> Size of the sample to return when the gradient is changed.
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</td></tr><tr><td><span class="term"><i class="parameter"><tt>reverse</tt></i> :</span></td><td> Use the reverse gradient.
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</td></tr><tr><td><span class="term"><i class="parameter"><tt>width</tt></i> :</span></td><td> The gradient sample width (r,g,b,a).
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</td></tr><tr><td><span class="term"><i class="parameter"><tt>grad_data</tt></i> :</span></td><td> The gradient sample data.
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</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> The gradient name.
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</td></tr></tbody></table></div></div></div></div><table class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="0"><tr valign="middle"><td align="left"><a accesskey="p" href="libgimp-gimpgradient.html"><b><< gimpgradient</b></a></td><td align="right"><a accesskey="n" href="libgimp-gimppalette.html"><b>gimppalette >></b></a></td></tr></table></body></html>
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