Qt Qpa Plugin !!install!! Jun 2026

To build a plugin, you must inherit from a few key classes.

Manages deeper integration like system fonts, icons, and native dialogs. qt qpa plugin

// A dummy window class QDummyWindow : public QPlatformWindow { public: QDummyWindow(QWindow *w) : QPlatformWindow(w) {} void setGeometry(const QRect &rect) override QPlatformWindow::setGeometry(rect); }; To build a plugin, you must inherit from a few key classes

// A dummy backing store that does nothing (for this example) class QDummyBackingStore : public QPlatformBackingStore { public: QDummyBackingStore(QWindow *win) : QPlatformBackingStore(win) {} QPaintDevice *paintDevice() override return nullptr; void flush(QWindow *, const QRegion &, const QPoint &) override {} void resize(const QSize &, const QRegion &) override {} }; To build a plugin

Q_OBJECT Q_PLUGIN_METADATA(IID QPlatformIntegrationFactoryInterface_iid FILE "minimal.json") public: QPlatformIntegration *create(const QString &system, const QStringList ¶mList) override

# Name the output file so Qt recognizes it as a platform plugin DESTDIR = $$[QT_INSTALL_PLUGINS]/platforms