560 lines
21 KiB
HTML
560 lines
21 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>gimpchannel</title>
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<link rel="chapter" href="libgimp-general.html" title="Functions not Related to Specific Images">
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<link rel="chapter" href="libgimp-image.html" title="Manupulating Images and their Properties">
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<link rel="chapter" href="libgimp-data.html" title="Data Objects">
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<link rel="chapter" href="libgimp-selectors.html" title="Controlling the Core's Selection Dialogs">
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<link rel="part" href="libgimpui.html" title="Part II. GIMP User Interface Library">
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<tr><td colspan="5" class="shortcuts"><nobr><a href="#libgimp-gimpchannel.synopsis" class="shortcut">Top</a>
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<a href="#libgimp-gimpchannel.description" class="shortcut">Description</a></nobr></td></tr>
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<div class="refentry" lang="en">
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<a name="libgimp-gimpchannel"></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><span class="refentrytitle"><a name="libgimp-gimpchannel.top_of_page"></a>gimpchannel</span></h2>
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<p>gimpchannel — Functions for manipulating channels.</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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<a name="libgimp-gimpchannel.synopsis"></a><h2>Synopsis</h2>
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<pre class="synopsis">
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gint32 <a class="link" href="libgimp-gimpchannel.html#gimp-channel-new" title="gimp_channel_new ()">gimp_channel_new</a> (gint32 image_ID,
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const <a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"
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>gchar</a> *name,
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"
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>guint</a> width,
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"
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>guint</a> height,
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"
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>gdouble</a> opacity,
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const <a
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href="../libgimpcolor/libgimpcolor-GimpRGB.html#GimpRGB"
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>GimpRGB</a> *color);
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gint32 <a class="link" href="libgimp-gimpchannel.html#gimp-channel-new-from-component" title="gimp_channel_new_from_component ()">gimp_channel_new_from_component</a> (gint32 image_ID,
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<a
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href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpChannelType"
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>GimpChannelType</a> component,
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const <a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"
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>gchar</a> *name);
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gint32 <a class="link" href="libgimp-gimpchannel.html#gimp-channel-copy" title="gimp_channel_copy ()">gimp_channel_copy</a> (gint32 channel_ID);
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> <a class="link" href="libgimp-gimpchannel.html#gimp-channel-get-show-masked" title="gimp_channel_get_show_masked ()">gimp_channel_get_show_masked</a> (gint32 channel_ID);
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> <a class="link" href="libgimp-gimpchannel.html#gimp-channel-set-show-masked" title="gimp_channel_set_show_masked ()">gimp_channel_set_show_masked</a> (gint32 channel_ID,
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> show_masked);
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"
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>gdouble</a> <a class="link" href="libgimp-gimpchannel.html#gimp-channel-get-opacity" title="gimp_channel_get_opacity ()">gimp_channel_get_opacity</a> (gint32 channel_ID);
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> <a class="link" href="libgimp-gimpchannel.html#gimp-channel-set-opacity" title="gimp_channel_set_opacity ()">gimp_channel_set_opacity</a> (gint32 channel_ID,
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"
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>gdouble</a> opacity);
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> <a class="link" href="libgimp-gimpchannel.html#gimp-channel-get-color" title="gimp_channel_get_color ()">gimp_channel_get_color</a> (gint32 channel_ID,
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<a
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href="../libgimpcolor/libgimpcolor-GimpRGB.html#GimpRGB"
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>GimpRGB</a> *color);
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> <a class="link" href="libgimp-gimpchannel.html#gimp-channel-set-color" title="gimp_channel_set_color ()">gimp_channel_set_color</a> (gint32 channel_ID,
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const <a
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href="../libgimpcolor/libgimpcolor-GimpRGB.html#GimpRGB"
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>GimpRGB</a> *color);
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> <a class="link" href="libgimp-gimpchannel.html#gimp-channel-combine-masks" title="gimp_channel_combine_masks ()">gimp_channel_combine_masks</a> (gint32 channel1_ID,
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gint32 channel2_ID,
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<a
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href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpChannelOps"
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>GimpChannelOps</a> operation,
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"
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>gint</a> offx,
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"
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>gint</a> offy);
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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="libgimp-gimpchannel.description"></a><h2>Description</h2>
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<p>
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Functions for manipulating channels.
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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="libgimp-gimpchannel.details"></a><h2>Details</h2>
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<div class="refsect2" lang="en">
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<a name="gimp-channel-new"></a><h3>gimp_channel_new ()</h3>
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<pre class="programlisting">gint32 gimp_channel_new (gint32 image_ID,
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const <a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"
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>gchar</a> *name,
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"
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>guint</a> width,
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"
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>guint</a> height,
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"
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>gdouble</a> opacity,
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const <a
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href="../libgimpcolor/libgimpcolor-GimpRGB.html#GimpRGB"
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>GimpRGB</a> *color);</pre>
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<p>
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Create a new channel.
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</p>
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<p>
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This procedure creates a new channel with the specified width and
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height. Name, opacity, and color are also supplied parameters. The
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new channel still needs to be added to the image, as this is not
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automatic. Add the new channel with the 'gimp_image_add_channel'
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command. Other attributes such as channel show masked, should be set
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with explicit procedure calls. The channel's contents are undefined
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initially.</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><p><span class="term"><em class="parameter"><code>image_ID</code></em> :</span></p></td>
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<td> The image to which to add the channel.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
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<td> The channel name.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><em class="parameter"><code>width</code></em> :</span></p></td>
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<td> The channel width.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><em class="parameter"><code>height</code></em> :</span></p></td>
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<td> The channel height.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><em class="parameter"><code>opacity</code></em> :</span></p></td>
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<td> The channel opacity.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><em class="parameter"><code>color</code></em> :</span></p></td>
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<td> The channel compositing color.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
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<td> The newly created channel.
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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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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="gimp-channel-new-from-component"></a><h3>gimp_channel_new_from_component ()</h3>
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<pre class="programlisting">gint32 gimp_channel_new_from_component (gint32 image_ID,
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<a
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href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpChannelType"
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>GimpChannelType</a> component,
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const <a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"
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>gchar</a> *name);</pre>
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<p>
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Create a new channel from a color component
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</p>
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<p>
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This procedure creates a new channel from a color component.</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><p><span class="term"><em class="parameter"><code>image_ID</code></em> :</span></p></td>
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<td> The image to which to add the channel.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><em class="parameter"><code>component</code></em> :</span></p></td>
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<td> The image component.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
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<td> The channel name.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
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<td> The newly created channel.
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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 class="since">Since GIMP 2.4
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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="gimp-channel-copy"></a><h3>gimp_channel_copy ()</h3>
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<pre class="programlisting">gint32 gimp_channel_copy (gint32 channel_ID);</pre>
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<p>
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Copy a channel.
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</p>
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<p>
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This procedure copies the specified channel and returns the copy.</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><p><span class="term"><em class="parameter"><code>channel_ID</code></em> :</span></p></td>
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<td> The channel to copy.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
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<td> The newly copied channel.
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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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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="gimp-channel-get-show-masked"></a><h3>gimp_channel_get_show_masked ()</h3>
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<pre class="programlisting"><a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> gimp_channel_get_show_masked (gint32 channel_ID);</pre>
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<p>
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Get the composite method of the specified channel.
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</p>
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<p>
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This procedure returns the specified channel's composite method. If
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it is TRUE, then the channel is composited with the image so that
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masked regions are shown. Otherwise, selected regions are shown.</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><p><span class="term"><em class="parameter"><code>channel_ID</code></em> :</span></p></td>
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<td> The channel.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
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<td> The channel composite method.
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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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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="gimp-channel-set-show-masked"></a><h3>gimp_channel_set_show_masked ()</h3>
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<pre class="programlisting"><a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> gimp_channel_set_show_masked (gint32 channel_ID,
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<a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
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>gboolean</a> show_masked);</pre>
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<p>
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Set the composite method of the specified channel.
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</p>
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<p>
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This procedure sets the specified channel's composite method. If it
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is TRUE, then the channel is composited with the image so that
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masked regions are shown. Otherwise, selected regions are shown.</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><p><span class="term"><em class="parameter"><code>channel_ID</code></em> :</span></p></td>
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<td> The channel.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><em class="parameter"><code>show_masked</code></em> :</span></p></td>
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<td> The new channel composite method.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
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<td> TRUE on success.
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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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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="gimp-channel-get-opacity"></a><h3>gimp_channel_get_opacity ()</h3>
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<pre class="programlisting"><a
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href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"
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>gdouble</a> gimp_channel_get_opacity (gint32 channel_ID);</pre>
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<p>
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Get the opacity of the specified channel.
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</p>
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<p>
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This procedure returns the specified channel's opacity.</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><p><span class="term"><em class="parameter"><code>channel_ID</code></em> :</span></p></td>
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<td> The channel.
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</td>
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</tr>
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<tr>
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<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
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<td> The channel opacity.
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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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</div>
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<hr>
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<div class="refsect2" lang="en">
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<a name="gimp-channel-set-opacity"></a><h3>gimp_channel_set_opacity ()</h3>
|
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<pre class="programlisting"><a
|
||
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
|
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>gboolean</a> gimp_channel_set_opacity (gint32 channel_ID,
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<a
|
||
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gdouble"
|
||
>gdouble</a> opacity);</pre>
|
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<p>
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Set the opacity of the specified channel.
|
||
</p>
|
||
<p>
|
||
This procedure sets the specified channel's opacity.</p>
|
||
<p>
|
||
|
||
</p>
|
||
<div class="variablelist"><table border="0">
|
||
<col align="left" valign="top">
|
||
<tbody>
|
||
<tr>
|
||
<td><p><span class="term"><em class="parameter"><code>channel_ID</code></em> :</span></p></td>
|
||
<td> The channel.
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td><p><span class="term"><em class="parameter"><code>opacity</code></em> :</span></p></td>
|
||
<td> The new channel opacity.
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
|
||
<td> TRUE on success.
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table></div>
|
||
</div>
|
||
<hr>
|
||
<div class="refsect2" lang="en">
|
||
<a name="gimp-channel-get-color"></a><h3>gimp_channel_get_color ()</h3>
|
||
<pre class="programlisting"><a
|
||
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
|
||
>gboolean</a> gimp_channel_get_color (gint32 channel_ID,
|
||
<a
|
||
href="../libgimpcolor/libgimpcolor-GimpRGB.html#GimpRGB"
|
||
>GimpRGB</a> *color);</pre>
|
||
<p>
|
||
Get the compositing color of the specified channel.
|
||
</p>
|
||
<p>
|
||
This procedure returns the specified channel's compositing color.</p>
|
||
<p>
|
||
|
||
</p>
|
||
<div class="variablelist"><table border="0">
|
||
<col align="left" valign="top">
|
||
<tbody>
|
||
<tr>
|
||
<td><p><span class="term"><em class="parameter"><code>channel_ID</code></em> :</span></p></td>
|
||
<td> The channel.
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td><p><span class="term"><em class="parameter"><code>color</code></em> :</span></p></td>
|
||
<td> The channel compositing color.
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
|
||
<td> TRUE on success.
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table></div>
|
||
</div>
|
||
<hr>
|
||
<div class="refsect2" lang="en">
|
||
<a name="gimp-channel-set-color"></a><h3>gimp_channel_set_color ()</h3>
|
||
<pre class="programlisting"><a
|
||
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
|
||
>gboolean</a> gimp_channel_set_color (gint32 channel_ID,
|
||
const <a
|
||
href="../libgimpcolor/libgimpcolor-GimpRGB.html#GimpRGB"
|
||
>GimpRGB</a> *color);</pre>
|
||
<p>
|
||
Set the compositing color of the specified channel.
|
||
</p>
|
||
<p>
|
||
This procedure sets the specified channel's compositing color.</p>
|
||
<p>
|
||
|
||
</p>
|
||
<div class="variablelist"><table border="0">
|
||
<col align="left" valign="top">
|
||
<tbody>
|
||
<tr>
|
||
<td><p><span class="term"><em class="parameter"><code>channel_ID</code></em> :</span></p></td>
|
||
<td> The channel.
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td><p><span class="term"><em class="parameter"><code>color</code></em> :</span></p></td>
|
||
<td> The new channel compositing color.
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
|
||
<td> TRUE on success.
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table></div>
|
||
</div>
|
||
<hr>
|
||
<div class="refsect2" lang="en">
|
||
<a name="gimp-channel-combine-masks"></a><h3>gimp_channel_combine_masks ()</h3>
|
||
<pre class="programlisting"><a
|
||
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"
|
||
>gboolean</a> gimp_channel_combine_masks (gint32 channel1_ID,
|
||
gint32 channel2_ID,
|
||
<a
|
||
href="../libgimpbase/libgimpbase-gimpbaseenums.html#GimpChannelOps"
|
||
>GimpChannelOps</a> operation,
|
||
<a
|
||
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"
|
||
>gint</a> offx,
|
||
<a
|
||
href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"
|
||
>gint</a> offy);</pre>
|
||
<p>
|
||
Combine two channel masks.
|
||
</p>
|
||
<p>
|
||
This procedure combines two channel masks. The result is stored in
|
||
the first channel.</p>
|
||
<p>
|
||
|
||
</p>
|
||
<div class="variablelist"><table border="0">
|
||
<col align="left" valign="top">
|
||
<tbody>
|
||
<tr>
|
||
<td><p><span class="term"><em class="parameter"><code>channel1_ID</code></em> :</span></p></td>
|
||
<td> The channel1.
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td><p><span class="term"><em class="parameter"><code>channel2_ID</code></em> :</span></p></td>
|
||
<td> The channel2.
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td><p><span class="term"><em class="parameter"><code>operation</code></em> :</span></p></td>
|
||
<td> The selection operation.
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td><p><span class="term"><em class="parameter"><code>offx</code></em> :</span></p></td>
|
||
<td> x offset between upper left corner of channels: (second - first).
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td><p><span class="term"><em class="parameter"><code>offy</code></em> :</span></p></td>
|
||
<td> y offset between upper left corner of channels: (second - first).
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
|
||
<td> TRUE on success.
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table></div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="footer">
|
||
<hr>
|
||
Generated by GTK-Doc V1.10</div>
|
||
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|
||
</html>
|