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<a name="GdkDisplayManager-display-opened"></a><h3>The <code class="literal">"display-opened"</code> signal</h3>
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<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="GdkDisplayManager.html" title="GdkDisplayManager"><span class="type">GdkDisplayManager</span></a> *display_manager,
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<a class="link" href="GdkDisplay.html" title="GdkDisplay"><span class="type">GdkDisplay</span></a> *display,
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The ::display_opened signal is emitted when a display is opened.