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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>BtApplication: Buzztrax Bt-Core Reference Manual</title>
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<a href="#BtApplication.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span>
<a href="#BtApplication.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_properties"> <span class="dim">|</span>
<a href="#BtApplication.properties" class="shortcut">Properties</a></span>
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<a name="BtApplication"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="BtApplication.top_of_page"></a>BtApplication</span></h2>
<p>BtApplication — base class for a buzztrax based application</p>
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<div class="refsect1">
<a name="BtApplication.properties"></a><h2>Properties</h2>
<div class="informaltable"><table border="0">
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<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
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<td class="property_type">
<a href="/usr/share/gtk-doc/html/gstreamer-1.0GstBin.html#GstBin-struct"><span class="type">GstBin</span></a> *</td>
<td class="property_name"><a class="link" href="BtApplication.html#BtApplication--bin" title="The “bin” property">bin</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type">
<a class="link" href="BtSettings.html" title="BtSettings"><span class="type">BtSettings</span></a> *</td>
<td class="property_name"><a class="link" href="BtApplication.html#BtApplication--settings" title="The “settings” property">settings</a></td>
<td class="property_flags">Read</td>
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<div class="refsect1">
<a name="BtApplication.other"></a><h2>Types and Values</h2>
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<col width="150px" class="name">
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<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="BtApplication.html#BtApplication-struct" title="struct BtApplication">BtApplication</a></td>
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</table></div>
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<div class="refsect1">
<a name="BtApplication.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
<span class="lineart">╰──</span> BtApplication
</pre>
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<div class="refsect1">
<a name="BtApplication.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <libbtcore/core.h>
</pre>
</div>
<div class="refsect1">
<a name="BtApplication.description"></a><h2>Description</h2>
<p>Every application using the libbtcore library should inherit from this class.
Implementations should implement the singleton pattern.</p>
<p>The base class automatically creates a <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstBin.html#GstBin-struct"><span class="type">GstBin</span></a> element as a container for the
song. This can be retrieved via the <a class="link" href="BtApplication.html#BtApplication--bin" title="The “bin” property"><span class="type">“bin”</span></a> property.
When creating <a class="link" href="BtSong.html" title="BtSong"><span class="type">BtSong</span></a> instances, the <a class="link" href="BtApplication.html" title="BtApplication"><span class="type">BtApplication</span></a> instance needs to be
passed to the <a class="link" href="BtSong.html#bt-song-new" title="bt_song_new ()"><code class="function">bt_song_new()</code></a> constructor, so that it can retrieve the <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstBin.html#GstBin-struct"><span class="type">GstBin</span></a>
element.</p>
<div class="informalexample">
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<td class="listing_lines" align="right"><pre>1
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<td class="listing_code"><pre class="programlisting"><span class="usertype">BtApplication</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">app</span><span class="symbol">;</span>
<span class="usertype">BtSong</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">song</span><span class="symbol">;</span>
<span class="symbol">...</span>
<span class="normal">song</span><span class="symbol">=</span><span class="function"><a href="../html/BtSong.html#bt-song-new">bt_song_new</a></span><span class="symbol">(</span><span class="normal">app</span><span class="symbol">);</span></pre></td>
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<p></p>
<p>Another module the application base class maintains is a settings instance (see
<a class="link" href="BtSettings.html" title="BtSettings"><span class="type">BtSettings</span></a>), that manages application preferences.</p>
</div>
<div class="refsect1">
<a name="BtApplication.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="BtApplication.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="BtApplication-struct"></a><h3>struct BtApplication</h3>
<pre class="programlisting">struct BtApplication;</pre>
<p>base object for a buzztrax based application</p>
</div>
</div>
<div class="refsect1">
<a name="BtApplication.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="BtApplication--bin"></a><h3>The <code class="literal">“bin”</code> property</h3>
<pre class="programlisting"> “bin” <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstBin.html#GstBin-struct"><span class="type">GstBin</span></a> *</pre>
<p>The top-level gstreamer element for the song, e.g. a <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstPipeline.html#GstPipeline-struct"><span class="type">GstPipeline</span></a> or
<a href="/usr/share/gtk-doc/html/gstreamer-1.0GstBin.html#GstBin-struct"><span class="type">GstBin</span></a>.</p>
<p>Flags: Read</p>
</div>
<hr>
<div class="refsect2">
<a name="BtApplication--settings"></a><h3>The <code class="literal">“settings”</code> property</h3>
<pre class="programlisting"> “settings” <a class="link" href="BtSettings.html" title="BtSettings"><span class="type">BtSettings</span></a> *</pre>
<p>applications configuration settings.</p>
<p>Flags: Read</p>
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