504 lines
20 KiB
HTML
504 lines
20 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
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<title>GimpPreview</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.72.0">
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<link rel="start" href="index.html" title="GIMP Widgets Library Reference Manual">
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<link rel="up" href="libgimpwidgets-widgets.html" title="Part I. GIMP Widgets">
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<link rel="prev" href="GimpPreviewArea.html" title="GimpPreviewArea">
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<link rel="next" href="libgimpwidgets-GimpScrolledPreview.html" title="GimpScrolledPreview">
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<meta name="generator" content="GTK-Doc V1.7 (XML mode)">
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<link rel="stylesheet" href="style.css" type="text/css">
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<link rel="part" href="libgimpwidgets-widgets.html" title="Part I. GIMP Widgets">
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<link rel="chapter" href="libgimpwidgets-hierarchy.html" title="Object Hierarchy">
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<link rel="chapter" href="libgimpwidgets-cell-renderers.html" title="Cell Renderers for GtkTreeView">
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<link rel="part" href="libgimpwidgets-colordisplay.html" title="Part II. GIMP Display Filters">
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<link rel="part" href="libgimpwidgets-colorselector.html" title="Part III. GIMP Color Selectors">
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<link rel="part" href="libgimpwidgets-controller.html" title="Part IV. GIMP Controllers">
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<link rel="part" href="libgimpwidgets-utils.html" title="Part V. GIMP Widgets Utilities">
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<link rel="part" href="libgimpwidgets-deprecated.html" title="Part VI. Deprecated API">
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</head>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2">
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<tr valign="middle">
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<td><a accesskey="p" href="GimpPreviewArea.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
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<td><a accesskey="u" href="libgimpwidgets-widgets.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
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<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
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<th width="100%" align="center">GIMP Widgets Library Reference Manual</th>
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<td><a accesskey="n" href="libgimpwidgets-GimpScrolledPreview.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
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</tr>
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<tr><td colspan="5" class="shortcuts"><nobr><a href="#id2563478" class="shortcut">Top</a>
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 | 
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<a href="#id2614553" class="shortcut">Description</a>
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 | 
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<a href="#id2610406" class="shortcut">Object Hierarchy</a>
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 | 
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<a href="#id2610467" class="shortcut">Implemented Interfaces</a>
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 | 
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<a href="#id2614450" class="shortcut">Properties</a>
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 | 
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<a href="#id2614480" class="shortcut">Style Properties</a>
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 | 
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<a href="#id2614511" class="shortcut">Signals</a></nobr></td></tr>
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</table>
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<div class="refentry" lang="en">
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<a name="GimpPreview"></a><div class="titlepage"></div>
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<div class="refnamediv"><table width="100%"><tr>
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<td valign="top">
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<h2>
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<a name="id2563478"></a><span class="refentrytitle">GimpPreview</span>
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</h2>
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<p>GimpPreview — A widget providing a <a href="GimpPreviewArea.html" title="GimpPreviewArea"><span class="type">GimpPreviewArea</span></a> plus framework to update the preview.</p>
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</td>
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<td valign="top" align="right"></td>
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</tr></table></div>
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<div class="refsynopsisdiv">
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<h2>Synopsis</h2>
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<pre class="synopsis">
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<a href="GimpPreview.html#GimpPreview-struct">GimpPreview</a>;
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gboolean <a href="GimpPreview.html#gimp-preview-get-update">gimp_preview_get_update</a> (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview);
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void <a href="GimpPreview.html#gimp-preview-set-update">gimp_preview_set_update</a> (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
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gboolean update);
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void <a href="GimpPreview.html#gimp-preview-set-bounds">gimp_preview_set_bounds</a> (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
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gint xmin,
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gint ymin,
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gint xmax,
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gint ymax);
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void <a href="GimpPreview.html#gimp-preview-get-size">gimp_preview_get_size</a> (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
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gint *width,
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gint *height);
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void <a href="GimpPreview.html#gimp-preview-get-position">gimp_preview_get_position</a> (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
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gint *x,
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gint *y);
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void <a href="GimpPreview.html#gimp-preview-draw">gimp_preview_draw</a> (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview);
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void <a href="GimpPreview.html#gimp-preview-draw-buffer">gimp_preview_draw_buffer</a> (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
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const guchar *buffer,
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gint rowstride);
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void <a href="GimpPreview.html#gimp-preview-invalidate">gimp_preview_invalidate</a> (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview);
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void <a href="GimpPreview.html#gimp-preview-set-default-cursor">gimp_preview_set_default_cursor</a> (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
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GdkCursor *cursor);
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</pre>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2610406"></a><h2>Object Hierarchy</h2>
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<pre class="synopsis">
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GObject
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+----GInitiallyUnowned
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+----GtkObject
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+----GtkWidget
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+----GtkContainer
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+----GtkBox
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+----GtkVBox
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+----GimpPreview
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</pre>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2610467"></a><h2>Implemented Interfaces</h2>
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<p>
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GimpPreview implements
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AtkImplementorIface.</p>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2614450"></a><h2>Properties</h2>
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<pre class="synopsis">
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"<a href="GimpPreview.html#GimpPreview--update">update</a>" gboolean : Read / Write / Construct
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</pre>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2614480"></a><h2>Style Properties</h2>
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<pre class="synopsis">
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"<a href="GimpPreview.html#GimpPreview--size">size</a>" gint : Read
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</pre>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2614511"></a><h2>Signals</h2>
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<pre class="synopsis">
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"<a href="GimpPreview.html#GimpPreview-invalidated">invalidated</a>"
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void user_function (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *gimppreview,
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gpointer user_data) : Run first
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</pre>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2614553"></a><h2>Description</h2>
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<p>
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A widget providing a <a href="GimpPreviewArea.html" title="GimpPreviewArea"><span class="type">GimpPreviewArea</span></a> plus framework to update the preview.
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</p>
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</div>
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<div class="refsect1" lang="en">
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<a name="id2614576"></a><h2>Details</h2>
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<div class="refsect2" lang="en">
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<a name="id2614587"></a><h3>
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<a name="GimpPreview-struct"></a>GimpPreview</h3>
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<a class="indexterm" name="id2614600"></a><pre class="programlisting">typedef struct _GimpPreview GimpPreview;</pre>
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<p>
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</p>
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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="id2614616"></a><h3>
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<a name="gimp-preview-get-update"></a>gimp_preview_get_update ()</h3>
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<a class="indexterm" name="id2614629"></a><pre class="programlisting">gboolean gimp_preview_get_update (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview);</pre>
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<p>
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</p>
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<p>
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</p>
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<div class="variablelist"><table border="0">
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<col align="left" valign="top">
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<tbody>
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<tr>
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<td><span class="term"><em class="parameter"><code>preview</code></em> :</span></td>
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<td> a <a href="GimpPreview.html" title="GimpPreview"><span class="type">GimpPreview</span></a> widget
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</td>
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</tr>
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<tr>
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<td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td>
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<td> the state of the "Preview" check button.
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</td>
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</tr>
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</tbody>
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</table></div>
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<p>Since GIMP 2.2
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</p>
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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="id2559378"></a><h3>
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<a name="gimp-preview-set-update"></a>gimp_preview_set_update ()</h3>
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<a class="indexterm" name="id2559392"></a><pre class="programlisting">void gimp_preview_set_update (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
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gboolean update);</pre>
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<p>
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Sets the state of the "Preview" check button.</p>
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<p>
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</p>
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<div class="variablelist"><table border="0">
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<col align="left" valign="top">
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<tbody>
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<tr>
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<td><span class="term"><em class="parameter"><code>preview</code></em> :</span></td>
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<td> a <a href="GimpPreview.html" title="GimpPreview"><span class="type">GimpPreview</span></a> widget
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</td>
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</tr>
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<tr>
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<td><span class="term"><em class="parameter"><code>update</code></em> :</span></td>
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<td> <code class="literal">TRUE</code> if the preview should invalidate itself when being
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scrolled or when <a href="GimpPreview.html#gimp-preview-invalidate"><code class="function">gimp_preview_invalidate()</code></a> is being called
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</td>
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</tr>
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</tbody>
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</table></div>
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<p>Since GIMP 2.2
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</p>
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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="id2559494"></a><h3>
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<a name="gimp-preview-set-bounds"></a>gimp_preview_set_bounds ()</h3>
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<a class="indexterm" name="id2559508"></a><pre class="programlisting">void gimp_preview_set_bounds (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
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gint xmin,
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gint ymin,
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gint xmax,
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gint ymax);</pre>
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<p>
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Sets the lower and upper limits for the previewed area. The
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difference between the upper and lower value is used to set the
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maximum size of the <a href="GimpPreviewArea.html" title="GimpPreviewArea"><span class="type">GimpPreviewArea</span></a> used in the <em class="parameter"><code>preview</code></em>.</p>
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<p>
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</p>
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<div class="variablelist"><table border="0">
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<col align="left" valign="top">
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<tbody>
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<tr>
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<td><span class="term"><em class="parameter"><code>preview</code></em> :</span></td>
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<td> a <a href="GimpPreview.html" title="GimpPreview"><span class="type">GimpPreview</span></a> widget
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</td>
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</tr>
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<tr>
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<td><span class="term"><em class="parameter"><code>xmin</code></em> :</span></td>
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<td>
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</td>
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</tr>
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<tr>
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<td><span class="term"><em class="parameter"><code>ymin</code></em> :</span></td>
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<td>
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</td>
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</tr>
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<tr>
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<td><span class="term"><em class="parameter"><code>xmax</code></em> :</span></td>
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<td>
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</td>
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</tr>
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<tr>
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<td><span class="term"><em class="parameter"><code>ymax</code></em> :</span></td>
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<td>
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</td>
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</tr>
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</tbody>
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</table></div>
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<p>Since GIMP 2.2
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</p>
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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="id2617768"></a><h3>
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<a name="gimp-preview-get-size"></a>gimp_preview_get_size ()</h3>
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<a class="indexterm" name="id2617781"></a><pre class="programlisting">void gimp_preview_get_size (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
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gint *width,
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gint *height);</pre>
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<p>
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</p>
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<p>
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</p>
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<div class="variablelist"><table border="0">
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<col align="left" valign="top">
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<tbody>
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<tr>
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<td><span class="term"><em class="parameter"><code>preview</code></em> :</span></td>
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<td> a <a href="GimpPreview.html" title="GimpPreview"><span class="type">GimpPreview</span></a> widget
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</td>
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</tr>
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<tr>
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<td><span class="term"><em class="parameter"><code>width</code></em> :</span></td>
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<td> return location for the preview area width
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</td>
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</tr>
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<tr>
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<td><span class="term"><em class="parameter"><code>height</code></em> :</span></td>
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<td> return location for the preview area height
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</td>
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</tr>
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</tbody>
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</table></div>
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<p>Since GIMP 2.2
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</p>
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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="id2617874"></a><h3>
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<a name="gimp-preview-get-position"></a>gimp_preview_get_position ()</h3>
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<a class="indexterm" name="id2617886"></a><pre class="programlisting">void gimp_preview_get_position (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
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gint *x,
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gint *y);</pre>
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<p>
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</p>
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<p>
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</p>
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<div class="variablelist"><table border="0">
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<col align="left" valign="top">
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<tbody>
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<tr>
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<td><span class="term"><em class="parameter"><code>preview</code></em> :</span></td>
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<td> a <a href="GimpPreview.html" title="GimpPreview"><span class="type">GimpPreview</span></a> widget
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</td>
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</tr>
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<tr>
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<td><span class="term"><em class="parameter"><code>x</code></em> :</span></td>
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<td> return location for the horizontal offset
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</td>
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</tr>
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<tr>
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<td><span class="term"><em class="parameter"><code>y</code></em> :</span></td>
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<td> return location for the vertical offset
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</td>
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</tr>
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</tbody>
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</table></div>
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<p>Since GIMP 2.2
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</p>
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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="id2617989"></a><h3>
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<a name="gimp-preview-draw"></a>gimp_preview_draw ()</h3>
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<a class="indexterm" name="id2618003"></a><pre class="programlisting">void gimp_preview_draw (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview);</pre>
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<p>
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Calls the GimpPreview::draw method. GimpPreview itself doesn't
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implement a default draw method so the behaviour is determined by
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the derived class implementing this method.
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</p>
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<p>
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<a
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href="../libgimp/GimpDrawablePreview.html"
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><span class="type">GimpDrawablePreview</span></a> implements <a href="GimpPreview.html#gimp-preview-draw"><code class="function">gimp_preview_draw()</code></a> by drawing the
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original, unmodified drawable to the <em class="parameter"><code>preview</code></em>.</p>
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<p>
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</p>
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<div class="variablelist"><table border="0">
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<col align="left" valign="top">
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<tbody><tr>
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<td><span class="term"><em class="parameter"><code>preview</code></em> :</span></td>
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<td> a <a href="GimpPreview.html" title="GimpPreview"><span class="type">GimpPreview</span></a> widget
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</td>
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</tr></tbody>
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</table></div>
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<p>Since GIMP 2.2
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</p>
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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="id2618095"></a><h3>
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<a name="gimp-preview-draw-buffer"></a>gimp_preview_draw_buffer ()</h3>
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<a class="indexterm" name="id2618109"></a><pre class="programlisting">void gimp_preview_draw_buffer (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
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const guchar *buffer,
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gint rowstride);</pre>
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<p>
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Calls the GimpPreview::draw_buffer method. GimpPreview itself
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doesn't implement this method so the behaviour is determined by the
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derived class implementing this method.</p>
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<p>
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</p>
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<div class="variablelist"><table border="0">
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<col align="left" valign="top">
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<tbody>
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<tr>
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<td><span class="term"><em class="parameter"><code>preview</code></em> :</span></td>
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<td> a <a href="GimpPreview.html" title="GimpPreview"><span class="type">GimpPreview</span></a> widget
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</td>
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</tr>
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<tr>
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<td><span class="term"><em class="parameter"><code>buffer</code></em> :</span></td>
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<td> a pixel buffer the size of the preview
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</td>
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</tr>
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<tr>
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<td><span class="term"><em class="parameter"><code>rowstride</code></em> :</span></td>
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<td> the <em class="parameter"><code>buffer</code></em>'s rowstride
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</td>
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</tr>
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</tbody>
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</table></div>
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<p>Since GIMP 2.2
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</p>
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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="id2618221"></a><h3>
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<a name="gimp-preview-invalidate"></a>gimp_preview_invalidate ()</h3>
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<a class="indexterm" name="id2618235"></a><pre class="programlisting">void gimp_preview_invalidate (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview);</pre>
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<p>
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This function starts or renews a short low-priority timeout. When
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the timeout expires, the GimpPreview::invalidated signal is emitted
|
|
which will usually cause the <em class="parameter"><code>preview</code></em> to be updated.
|
|
</p>
|
|
<p>
|
|
This function does nothing unless the "Preview" button is checked.
|
|
</p>
|
|
<p>
|
|
During the emission of the signal a busy cursor is set on the
|
|
toplevel window containing the <em class="parameter"><code>preview</code></em> and on the preview area
|
|
itself.</p>
|
|
<p>
|
|
|
|
</p>
|
|
<div class="variablelist"><table border="0">
|
|
<col align="left" valign="top">
|
|
<tbody><tr>
|
|
<td><span class="term"><em class="parameter"><code>preview</code></em> :</span></td>
|
|
<td> a <a href="GimpPreview.html" title="GimpPreview"><span class="type">GimpPreview</span></a> widget
|
|
</td>
|
|
</tr></tbody>
|
|
</table></div>
|
|
<p>Since GIMP 2.2
|
|
</p>
|
|
</div>
|
|
<hr>
|
|
<div class="refsect2" lang="en">
|
|
<a name="id2618321"></a><h3>
|
|
<a name="gimp-preview-set-default-cursor"></a>gimp_preview_set_default_cursor ()</h3>
|
|
<a class="indexterm" name="id2618337"></a><pre class="programlisting">void gimp_preview_set_default_cursor (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *preview,
|
|
GdkCursor *cursor);</pre>
|
|
<p>
|
|
Sets the default mouse cursor for the preview. Note that this will
|
|
be overriden by a <code class="literal">GDK_FLEUR</code> if the preview has scrollbars, or by a
|
|
<code class="literal">GDK_WATCH</code> when the preview is invalidated.</p>
|
|
<p>
|
|
|
|
</p>
|
|
<div class="variablelist"><table border="0">
|
|
<col align="left" valign="top">
|
|
<tbody>
|
|
<tr>
|
|
<td><span class="term"><em class="parameter"><code>preview</code></em> :</span></td>
|
|
<td> a <a href="GimpPreview.html" title="GimpPreview"><span class="type">GimpPreview</span></a> widget
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><span class="term"><em class="parameter"><code>cursor</code></em> :</span></td>
|
|
<td> a <span class="type">GdkCursor</span> or <code class="literal">NULL</code>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table></div>
|
|
<p>Since GIMP 2.2
|
|
</p>
|
|
</div>
|
|
</div>
|
|
<div class="refsect1" lang="en">
|
|
<a name="id2618459"></a><h2>Property Details</h2>
|
|
<div class="refsect2" lang="en">
|
|
<a name="id2618469"></a><h3>
|
|
<a name="GimpPreview--update"></a>The "<code class="literal">update</code>" property</h3>
|
|
<a class="indexterm" name="id2618484"></a><pre class="programlisting"> "update" gboolean : Read / Write / Construct</pre>
|
|
<p></p>
|
|
<p>Default value: TRUE</p>
|
|
</div>
|
|
</div>
|
|
<div class="refsect1" lang="en">
|
|
<a name="id2618510"></a><h2>Style Property Details</h2>
|
|
<div class="refsect2" lang="en">
|
|
<a name="id2618520"></a><h3>
|
|
<a name="GimpPreview--size"></a>The "<code class="literal">size</code>" style property</h3>
|
|
<a class="indexterm" name="id2618535"></a><pre class="programlisting"> "size" gint : Read</pre>
|
|
<p></p>
|
|
<p>Allowed values: [1,1024]</p>
|
|
<p>Default value: 150</p>
|
|
</div>
|
|
</div>
|
|
<div class="refsect1" lang="en">
|
|
<a name="id2618564"></a><h2>Signal Details</h2>
|
|
<div class="refsect2" lang="en">
|
|
<a name="id2618575"></a><h3>
|
|
<a name="GimpPreview-invalidated"></a>The "invalidated" signal</h3>
|
|
<a class="indexterm" name="id2618582"></a><pre class="programlisting">void user_function (<a href="GimpPreview.html" title="GimpPreview">GimpPreview</a> *gimppreview,
|
|
gpointer user_data) : Run first</pre>
|
|
<p>
|
|
|
|
</p>
|
|
<div class="variablelist"><table border="0">
|
|
<col align="left" valign="top">
|
|
<tbody>
|
|
<tr>
|
|
<td><span class="term"><em class="parameter"><code>gimppreview</code></em> :</span></td>
|
|
<td>the object which received the signal.
|
|
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td><span class="term"><em class="parameter"><code>user_data</code></em> :</span></td>
|
|
<td>user data set when the signal handler was connected.</td>
|
|
</tr>
|
|
</tbody>
|
|
</table></div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html>
|