Added QScreen::refreshRate() to get the vertical refresh rate.

To give applications that want it the option to use a fixed timestep for
animations, and to avoid having values of 60 hard-coded (we have a
couple of those in qtdeclarative/src/quick already), we need to know the
refresh rates of the screens we are rendering to.

Change-Id: Ife49162e830440ad7eab563a27e8aebbbafc5fc5
Reviewed-by: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/plugins/platforms/windows/qwindowsscreen.h b/src/plugins/platforms/windows/qwindowsscreen.h
index 56e9ab304e..615d4faf15 100644
--- a/src/plugins/platforms/windows/qwindowsscreen.h
+++ b/src/plugins/platforms/windows/qwindowsscreen.h
@@ -70,6 +70,7 @@ struct QWindowsScreenData
     unsigned flags;
     QString name;
     Qt::ScreenOrientation orientation;
+    qreal refreshRateHz;
 };
 
 class QWindowsScreen : public QPlatformScreen
@@ -87,6 +88,7 @@ public:
     virtual QImage::Format format() const { return m_data.format; }
     virtual QSizeF physicalSize() const { return m_data.physicalSizeMM; }
     virtual QDpi logicalDpi() const { return m_data.dpi; }
+    virtual qreal refreshRate() const { return m_data.refreshRateHz; }
     virtual QString name() const { return m_data.name; }
     virtual Qt::ScreenOrientation primaryOrientation() { return m_data.orientation; }
     virtual QList<QPlatformScreen *> virtualSiblings() const;