1 files changed, 13 insertions, 1 deletions
diff --git a/src/plugins/platforms/cocoa/qcocoascreen.h b/src/plugins/platforms/cocoa/qcocoascreen.h
index 3d59c3de79..9ded98df32 100644
--- a/src/plugins/platforms/cocoa/qcocoascreen.h
+++ b/src/plugins/platforms/cocoa/qcocoascreen.h
@@ -75,7 +75,11 @@ public:
     // Additional methods
     void setVirtualSiblings(const QList<QPlatformScreen *> &siblings) { m_siblings = siblings; }
     NSScreen *nativeScreen() const;
-    void updateGeometry();
+    void updateProperties();
+
+    void requestUpdate();
+    void deliverUpdateRequests();
+    bool isRunningDisplayLink() const;
 
     static QCocoaScreen *primaryScreen();
 
@@ -96,6 +100,10 @@ public:
     QSizeF m_physicalSize;
     QCocoaCursor *m_cursor;
     QList<QPlatformScreen *> m_siblings;
+
+    CVDisplayLinkRef m_displayLink = nullptr;
+    dispatch_source_t m_displayLinkSource = nullptr;
+    QAtomicInt m_pendingUpdates;
 };
 
 #ifndef QT_NO_DEBUG_STREAM
@@ -104,5 +112,9 @@ QDebug operator<<(QDebug debug, const QCocoaScreen *screen);
 
 QT_END_NAMESPACE
 
+@interface NSScreen (QtExtras)
+@property(readonly) CGDirectDisplayID qt_displayId;
+@end
+
 #endif