1 files changed, 13 insertions, 1 deletions
diff --git a/src/gui/kernel/qplatformnativeinterface_qpa.h b/src/gui/kernel/qplatformnativeinterface_qpa.h
index 6ea8104fa3..bfcf78813b 100644
--- a/src/gui/kernel/qplatformnativeinterface_qpa.h
+++ b/src/gui/kernel/qplatformnativeinterface_qpa.h
@@ -43,6 +43,8 @@
 #define QPLATFORMNATIVEINTERFACE_QPA_H
 
 #include <QtGui/qwindowdefs.h>
+#include <QtCore/QObject>
+#include <QtCore/QVariant>
 
 QT_BEGIN_HEADER
 
@@ -52,14 +54,24 @@ QT_MODULE(Gui)
 
 class QOpenGLContext;
 class QWindow;
+class QPlatformWindow;
 class QBackingStore;
 
-class Q_GUI_EXPORT QPlatformNativeInterface
+class Q_GUI_EXPORT QPlatformNativeInterface : public QObject
 {
+    Q_OBJECT
 public:
     virtual void *nativeResourceForContext(const QByteArray &resource, QOpenGLContext *context);
     virtual void *nativeResourceForWindow(const QByteArray &resource, QWindow *window);
     virtual void *nativeResourceForBackingStore(const QByteArray &resource, QBackingStore *backingStore);
+
+    virtual QVariantMap windowProperties(QPlatformWindow *window) const;
+    virtual QVariant windowProperty(QPlatformWindow *window, const QString &name) const;
+    virtual QVariant windowProperty(QPlatformWindow *window, const QString &name, const QVariant &defaultValue) const;
+    virtual void setWindowProperty(QPlatformWindow *window, const QString &name, const QVariant &value);
+
+Q_SIGNALS:
+    void windowPropertyChanged(QPlatformWindow *window, const QString &propertyName);
 };
 
 QT_END_NAMESPACE