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Qt 5.3.2 Reference Documentation</li>
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<h1 class="title">Qt Platform Abstraction</h1>
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<p>The Qt Platform Abstraction (QPA) is the platform abstraction layer for Qt 5 and replaces Qt for Embedded Linux and the platform ports from Qt 4.</p>
<p>QPA plugins are implemented by subclassing various QPlatform* classes. There are two “root” classes: <a href="../qtgui/qplatformintegration.html">QPlatformIntegration</a> for window system integration and <a href="../qtgui/qplatformtheme.html">QPlatformTheme</a> for deeper platform theming and integration. <a href="../qtwidgets/qstyle.html">QStyle</a> is not a part of QPA.</p>
<p>There are no source or binary compatibility guarantees for the QPA classes, meaning that a platform plugin is only guaranteed to work with the Qt version it was developed against. API changes will however only be made in minor releases. (5.1, 5.2, and so on.)</p>
<p>There is no detailed tutorial documentation for writing QPA plugins at this time. However, there are two example plugins shipped with Qt5:</p>
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<li><tt>qtbase/src/plugins/platforms/minimal/</tt></li>
<li><tt>qtbase/src/plugins/platforms/minimalegl/</tt></li>
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<h2>Class Overview</h2>
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<li><a href="../qtgui/qplatformintegration.html">QPlatformIntegration</a><ul>
<li><a href="../qtgui/qplatformwindow.html">QPlatformWindow</a></li>
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<li>platform palettes</li>
<li>platform fonts</li>
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<p><tt>qtbase/src/platformsupport</tt> contains several helper classes for implementing platform plugins on Unix-like systems.</p>
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