diff --git a/modules/gui/qt4/adapters/variables.hpp b/modules/gui/qt4/adapters/variables.hpp
index 04f286cda40b004970efc53669f9f14b8d6f7e72..fb0b4cb38d9293ca1a59a7a5b63aa0c6cddc8f8e 100644
--- a/modules/gui/qt4/adapters/variables.hpp
+++ b/modules/gui/qt4/adapters/variables.hpp
@@ -25,6 +25,8 @@
 # include <config.h>
 #endif
 
+#include "qt4.hpp"
+
 #include <QObject>
 #include <vlc_common.h>
 
@@ -47,7 +49,7 @@ class QVLCPointer : public QVLCVariable
 {
     Q_OBJECT
 private:
-    virtual void trigger (vlc_value_t, vlc_value_t);
+    void trigger (vlc_value_t, vlc_value_t) Q_DECL_OVERRIDE;
 
 public:
     QVLCPointer (vlc_object_t *, const char *, bool inherit = false);
@@ -62,7 +64,7 @@ class QVLCInteger : public QVLCVariable
 {
     Q_OBJECT
 private:
-    virtual void trigger (vlc_value_t, vlc_value_t);
+    void trigger (vlc_value_t, vlc_value_t) Q_DECL_OVERRIDE;
 
 public:
     QVLCInteger (vlc_object_t *, const char *, bool inherit = false);
@@ -77,7 +79,7 @@ class QVLCBool : public QVLCVariable
 {
     Q_OBJECT
 private:
-    virtual void trigger (vlc_value_t, vlc_value_t);
+   void trigger (vlc_value_t, vlc_value_t) Q_DECL_OVERRIDE;
 
 public:
     QVLCBool (vlc_object_t *, const char *, bool inherit = false);
@@ -92,7 +94,7 @@ class QVLCFloat : public QVLCVariable
 {
     Q_OBJECT
 private:
-    virtual void trigger (vlc_value_t, vlc_value_t);
+    void trigger (vlc_value_t, vlc_value_t) Q_DECL_OVERRIDE;
 
 public:
     QVLCFloat (vlc_object_t *, const char *, bool inherit = false);
@@ -107,7 +109,7 @@ class QVLCString : public QVLCVariable
 {
     Q_OBJECT
 private:
-    virtual void trigger (vlc_value_t, vlc_value_t);
+    void trigger (vlc_value_t, vlc_value_t) Q_DECL_OVERRIDE;
 
 public:
     QVLCString (vlc_object_t *, const char *, bool inherit = false);
diff --git a/modules/gui/qt4/components/controller.hpp b/modules/gui/qt4/components/controller.hpp
index b22e4301f7bb60c4d348f4d4625d4d688cb97905..3180bbcdcd8050325544235c8e09546eb4d802d8 100644
--- a/modules/gui/qt4/components/controller.hpp
+++ b/modules/gui/qt4/components/controller.hpp
@@ -275,14 +275,14 @@ public slots:
 protected:
     friend class MainInterface;
 
-    virtual void mouseMoveEvent( QMouseEvent *event );
-    virtual void mousePressEvent( QMouseEvent *event );
-    virtual void mouseReleaseEvent( QMouseEvent *event );
-    virtual void enterEvent( QEvent *event );
-    virtual void leaveEvent( QEvent *event );
-    virtual void keyPressEvent( QKeyEvent *event );
-
-    virtual void customEvent( QEvent *event );
+    void mouseMoveEvent( QMouseEvent *event ) Q_DECL_OVERRIDE;
+    void mousePressEvent( QMouseEvent *event ) Q_DECL_OVERRIDE;
+    void mouseReleaseEvent( QMouseEvent *event ) Q_DECL_OVERRIDE;
+    void enterEvent( QEvent *event ) Q_DECL_OVERRIDE;
+    void leaveEvent( QEvent *event ) Q_DECL_OVERRIDE;
+    void keyPressEvent( QKeyEvent *event ) Q_DECL_OVERRIDE;
+
+    void customEvent( QEvent *event ) Q_DECL_OVERRIDE;
 
 private slots:
     void showFSC();
diff --git a/modules/gui/qt4/components/controller_widget.hpp b/modules/gui/qt4/components/controller_widget.hpp
index 832017516e0c5feaf24c3a32f02b6fcc75c8001d..f969670ae760815add3f7ee065dc42a5603c74af 100644
--- a/modules/gui/qt4/components/controller_widget.hpp
+++ b/modules/gui/qt4/components/controller_widget.hpp
@@ -102,7 +102,7 @@ public:
     void setMuted( bool );
 
 protected:
-    virtual bool eventFilter( QObject *obj, QEvent *e );
+    bool eventFilter( QObject *obj, QEvent *e ) Q_DECL_OVERRIDE;
 
 private:
     intf_thread_t       *p_intf;
diff --git a/modules/gui/qt4/components/epg/EPGChannels.hpp b/modules/gui/qt4/components/epg/EPGChannels.hpp
index c22965714d2f67d6e4e280ee4df9d0ae584bb54a..7ed6cbd511bfdc0db66ba6fbec95ce29f96e6394 100644
--- a/modules/gui/qt4/components/epg/EPGChannels.hpp
+++ b/modules/gui/qt4/components/epg/EPGChannels.hpp
@@ -23,6 +23,8 @@
 #ifndef EPGCHANNELS_HPP
 #define EPGCHANNELS_HPP
 
+#include "qt4.hpp"
+
 #include <QWidget>
 
 class EPGView;
@@ -39,7 +41,7 @@ public slots:
     void removeChannel( QString );
 
 protected:
-    virtual void paintEvent( QPaintEvent *event );
+    void paintEvent( QPaintEvent *event ) Q_DECL_OVERRIDE;
 
 private:
     EPGView *m_epgView;
diff --git a/modules/gui/qt4/components/epg/EPGItem.hpp b/modules/gui/qt4/components/epg/EPGItem.hpp
index b4e1ea99206b8712fcee0f23116c4f156c751aef..f5f9d9cb8bc8aaf0d510f39f956cf04f380cd60e 100644
--- a/modules/gui/qt4/components/epg/EPGItem.hpp
+++ b/modules/gui/qt4/components/epg/EPGItem.hpp
@@ -40,8 +40,8 @@ class EPGItem : public QGraphicsItem
 public:
     EPGItem( vlc_epg_event_t *data, EPGView *view );
 
-    virtual QRectF boundingRect() const;
-    virtual void paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0 );
+    QRectF boundingRect() const Q_DECL_OVERRIDE;
+    void paint( QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0 ) Q_DECL_OVERRIDE;
 
     const QDateTime& start() const;
     QDateTime end() const;
@@ -60,9 +60,9 @@ public:
     bool playsAt( const QDateTime & ) const;
 
 protected:
-    virtual void focusInEvent( QFocusEvent * event );
-    virtual void hoverEnterEvent ( QGraphicsSceneHoverEvent * );
-    virtual void hoverLeaveEvent ( QGraphicsSceneHoverEvent * );
+    void focusInEvent( QFocusEvent * event ) Q_DECL_OVERRIDE;
+    void hoverEnterEvent ( QGraphicsSceneHoverEvent * ) Q_DECL_OVERRIDE;
+    void hoverLeaveEvent ( QGraphicsSceneHoverEvent * ) Q_DECL_OVERRIDE;
 
 private:
     EPGView     *m_view;
diff --git a/modules/gui/qt4/components/epg/EPGRuler.hpp b/modules/gui/qt4/components/epg/EPGRuler.hpp
index 25cbdb647c26cb90d68a8228b8892016e7ca41c8..2c69f12db2a7d2eb7db6f6224295f5bc34a55a7d 100644
--- a/modules/gui/qt4/components/epg/EPGRuler.hpp
+++ b/modules/gui/qt4/components/epg/EPGRuler.hpp
@@ -24,6 +24,8 @@
 #ifndef EPGRULER_H
 #define EPGRULER_H
 
+#include "qt4.hpp"
+
 #include <QWidget>
 #include <QDateTime>
 
@@ -42,7 +44,7 @@ public slots:
     void setOffset( int offset );
 
 protected:
-    virtual void paintEvent( QPaintEvent *event );
+    void paintEvent( QPaintEvent *event ) Q_DECL_OVERRIDE;
 
 private:
     qreal m_scale;
diff --git a/modules/gui/qt4/components/extended_panels.hpp b/modules/gui/qt4/components/extended_panels.hpp
index b4c71eae980de945e3c882606a06a9433936939e..006d60290f18117d1619974b1b13d8e423e11d06 100644
--- a/modules/gui/qt4/components/extended_panels.hpp
+++ b/modules/gui/qt4/components/extended_panels.hpp
@@ -31,6 +31,7 @@
 
 #include <vlc_common.h>
 
+#include "qt4.hpp"
 #include "ui/equalizer.h"
 #include "ui/video_effects.h"
 
@@ -71,7 +72,7 @@ class ExtV4l2 : public QWidget
 public:
     ExtV4l2( intf_thread_t *, QWidget * );
 
-    virtual void showEvent( QShowEvent *event );
+    void showEvent( QShowEvent *event ) Q_DECL_OVERRIDE;
 
 private:
     intf_thread_t *p_intf;
@@ -156,13 +157,13 @@ public:
                          const slider_data_t *p_data, int index );
 
 protected:
-    virtual float initialValue();
+    float initialValue() Q_DECL_OVERRIDE;
     int index;
     QStringList getBandsFromAout() const;
 
 public slots:
-    virtual void onValueChanged( int i ) const;
-    virtual void writeToConfig() const;
+    void onValueChanged( int i ) const Q_DECL_OVERRIDE;
+    void writeToConfig() const Q_DECL_OVERRIDE;
 };
 
 class Equalizer: public AudioFilterControlWidget
@@ -173,10 +174,10 @@ public:
     Equalizer( intf_thread_t *, QWidget * );
 
 protected:
-    virtual void build();
+    void build() Q_DECL_OVERRIDE;
 
 protected slots:
-    virtual void setSaveToConfig( bool );
+    void setSaveToConfig( bool ) Q_DECL_OVERRIDE;
 
 private:
     FilterSliderData *preamp;
diff --git a/modules/gui/qt4/components/info_panels.hpp b/modules/gui/qt4/components/info_panels.hpp
index 90c7b4a0654bf9ce2425bd33948a7f87124d446b..e2b7ac04c3855e94bfb1000a4f0a194404c16ddd 100644
--- a/modules/gui/qt4/components/info_panels.hpp
+++ b/modules/gui/qt4/components/info_panels.hpp
@@ -30,6 +30,8 @@
 # include "config.h"
 #endif
 
+#include "qt4.hpp"
+
 #include <vlc_common.h>
 #include <QWidget>
 
@@ -113,7 +115,7 @@ class InputStatsPanel: public QWidget
 public:
     InputStatsPanel( QWidget * );
 protected:
-    virtual void hideEvent( QHideEvent * );
+    void hideEvent( QHideEvent * ) Q_DECL_OVERRIDE;
 private:
     QTreeWidget *StatsTree;
     QTreeWidgetItem *input;
diff --git a/modules/gui/qt4/components/interface_widgets.hpp b/modules/gui/qt4/components/interface_widgets.hpp
index 520039f92ff047d24aa7c6c1bc6c667baeefb4cc..7796b2aff3a6b930e937bb7efccbc220dac84dbd 100644
--- a/modules/gui/qt4/components/interface_widgets.hpp
+++ b/modules/gui/qt4/components/interface_widgets.hpp
@@ -64,7 +64,7 @@ public:
     void  sync( void );
 
 protected:
-    virtual QPaintEngine *paintEngine() const
+    QPaintEngine *paintEngine() const Q_DECL_OVERRIDE
     {
         return NULL;
     }
@@ -95,10 +95,10 @@ private:
     bool b_expandPixmap;
     bool b_withart;
     QPropertyAnimation *fadeAnimation;
-    virtual void contextMenuEvent( QContextMenuEvent *event ); 
+    void contextMenuEvent( QContextMenuEvent *event ) Q_DECL_OVERRIDE;
 protected:
-    void paintEvent( QPaintEvent *e );
-    virtual void showEvent( QShowEvent * e );
+    void paintEvent( QPaintEvent *e ) Q_DECL_OVERRIDE;
+    void showEvent( QShowEvent * e ) Q_DECL_OVERRIDE;
     static const int MARGIN = 5;
     QString defaultArt;
 public slots:
@@ -118,10 +118,10 @@ public slots:
     void animate();
 
 protected:
-    void paintEvent( QPaintEvent *e );
-    void showEvent( QShowEvent *e );
-    void hideEvent( QHideEvent * );
-    void resizeEvent( QResizeEvent * );
+    void paintEvent( QPaintEvent *e ) Q_DECL_OVERRIDE;
+    void showEvent( QShowEvent *e ) Q_DECL_OVERRIDE;
+    void hideEvent( QHideEvent * ) Q_DECL_OVERRIDE;
+    void resizeEvent( QResizeEvent * ) Q_DECL_OVERRIDE;
 
 private slots:
     void spawnFlakes();
@@ -161,7 +161,7 @@ class ClickableQLabel : public QLabel
 {
     Q_OBJECT
 public:
-    virtual void mouseDoubleClickEvent( QMouseEvent *event )
+    void mouseDoubleClickEvent( QMouseEvent *event ) Q_DECL_OVERRIDE
     {
         Q_UNUSED( event );
         emit doubleClicked();
@@ -183,13 +183,13 @@ public:
 
     TimeLabel( intf_thread_t *_p_intf, TimeLabel::Display _displayType = TimeLabel::Both );
 protected:
-    virtual void mousePressEvent( QMouseEvent *event )
+    void mousePressEvent( QMouseEvent *event ) Q_DECL_OVERRIDE
     {
         if( displayType == TimeLabel::Elapsed ) return;
         toggleTimeDisplay();
         event->accept();
     }
-    virtual void mouseDoubleClickEvent( QMouseEvent *event )
+    void mouseDoubleClickEvent( QMouseEvent *event ) Q_DECL_OVERRIDE
     {
         if( displayType != TimeLabel::Both ) return;
         event->accept();
@@ -218,7 +218,7 @@ public:
     virtual ~SpeedLabel();
 
 protected:
-    virtual void mousePressEvent ( QMouseEvent * event )
+    void mousePressEvent ( QMouseEvent * event ) Q_DECL_OVERRIDE
     {
         showSpeedMenu( event->pos() );
     }
@@ -263,7 +263,7 @@ public:
     virtual ~CoverArtLabel();
 
 protected:
-    virtual void mouseDoubleClickEvent( QMouseEvent *event )
+    void mouseDoubleClickEvent( QMouseEvent *event ) Q_DECL_OVERRIDE
     {
         if( ! p_item && qobject_cast<MetaPanel *>(this->window()) == NULL )
         {
diff --git a/modules/gui/qt4/components/open_panels.hpp b/modules/gui/qt4/components/open_panels.hpp
index 4f541a1877a82d4eb62aba3ceb384b86ba606851..01c5b889bfabaed457f0a255a69bb623fee7d829 100644
--- a/modules/gui/qt4/components/open_panels.hpp
+++ b/modules/gui/qt4/components/open_panels.hpp
@@ -102,7 +102,7 @@ class FileOpenPanel: public OpenPanel
 public:
     FileOpenPanel( QWidget *, intf_thread_t * );
     virtual ~FileOpenPanel();
-    virtual void clear() ;
+    void clear() Q_DECL_OVERRIDE;
     virtual void accept() ;
 protected:
     bool eventFilter(QObject *, QEvent *event)
@@ -115,16 +115,16 @@ protected:
         }
         return false;
     }
-    virtual void dropEvent( QDropEvent *);
-    virtual void dragEnterEvent( QDragEnterEvent * );
-    virtual void dragMoveEvent( QDragMoveEvent * );
-    virtual void dragLeaveEvent( QDragLeaveEvent * );
+    void dropEvent( QDropEvent *) Q_DECL_OVERRIDE;
+    void dragEnterEvent( QDragEnterEvent * ) Q_DECL_OVERRIDE;
+    void dragMoveEvent( QDragMoveEvent * ) Q_DECL_OVERRIDE;
+    void dragLeaveEvent( QDragLeaveEvent * ) Q_DECL_OVERRIDE;
 private:
     Ui::OpenFile ui;
     FileOpenBox *dialogBox;
     void BuildOldPanel();
 public slots:
-    virtual void updateMRL();
+    void updateMRL() Q_DECL_OVERRIDE;
 private slots:
     void browseFileSub();
     void browseFile();
@@ -138,14 +138,14 @@ class NetOpenPanel: public OpenPanel
 public:
     NetOpenPanel( QWidget *, intf_thread_t * );
     virtual ~NetOpenPanel();
-    virtual void clear() ;
-    virtual void onFocus();
-    virtual void onAccept();
+    void clear()  Q_DECL_OVERRIDE;
+    void onFocus() Q_DECL_OVERRIDE;
+    void onAccept() Q_DECL_OVERRIDE;
 private:
     Ui::OpenNetwork ui;
     bool b_recentList;
 public slots:
-    virtual void updateMRL();
+    void updateMRL() Q_DECL_OVERRIDE;
 };
 
 class DiscOpenPanel: public OpenPanel
@@ -162,8 +162,8 @@ class DiscOpenPanel: public OpenPanel
 public:
     DiscOpenPanel( QWidget *, intf_thread_t * );
     virtual ~DiscOpenPanel();
-    virtual void clear() ;
-    virtual void accept() ;
+    void clear() Q_DECL_OVERRIDE;
+    virtual void accept();
 #if defined( _WIN32 ) || defined( __OS2__ )
     virtual void onFocus();
 #endif
@@ -172,7 +172,7 @@ private:
     char *psz_dvddiscpath, *psz_vcddiscpath, *psz_cddadiscpath;
     DiscType m_discType;
 public slots:
-    virtual void updateMRL() ;
+    void updateMRL() Q_DECL_OVERRIDE;
 private slots:
     void browseDevice();
     void updateButtons() ;
@@ -186,7 +186,7 @@ class CaptureOpenPanel: public OpenPanel
 public:
     CaptureOpenPanel( QWidget *, intf_thread_t * );
     virtual ~CaptureOpenPanel();
-    virtual void clear() ;
+    void clear() Q_DECL_OVERRIDE;
 private:
     Ui::OpenCapture ui;
     bool isInitialized;
@@ -213,7 +213,7 @@ private:
     QDoubleSpinBox *screenFPS;
 
 public slots:
-    virtual void updateMRL();
+    void updateMRL() Q_DECL_OVERRIDE;
     void initialize();
 private slots:
     void updateButtons();
diff --git a/modules/gui/qt4/components/playlist/playlist.hpp b/modules/gui/qt4/components/playlist/playlist.hpp
index 533a056228b78014fdfcc3746f82de65ed8c435b..ca71f7a1c245ecba6087ebcaab7162056a043458 100644
--- a/modules/gui/qt4/components/playlist/playlist.hpp
+++ b/modules/gui/qt4/components/playlist/playlist.hpp
@@ -72,9 +72,9 @@ private:
 
 protected:
     PlaylistWidget( intf_thread_t *_p_i, QWidget * );
-    virtual void dropEvent( QDropEvent *);
-    virtual void dragEnterEvent( QDragEnterEvent * );
-    virtual void closeEvent( QCloseEvent * );
+    void dropEvent( QDropEvent *) Q_DECL_OVERRIDE;
+    void dragEnterEvent( QDragEnterEvent * ) Q_DECL_OVERRIDE;
+    void closeEvent( QCloseEvent * ) Q_DECL_OVERRIDE;
 private slots:
     void changeView( const QModelIndex& index );
 
@@ -100,10 +100,10 @@ public:
     SplitterHandle( Qt::Orientation orientation, QSplitter * parent );
 
 protected:
-    virtual void paintEvent ( QPaintEvent * );
+    void paintEvent ( QPaintEvent * ) Q_DECL_OVERRIDE;
 
 private:
-    virtual QSize sizeHint () const;
+    QSize sizeHint () const Q_DECL_OVERRIDE;
 };
 #endif /* __APPLE__ */
 
@@ -111,9 +111,9 @@ class LocationButton : public QPushButton
 {
 public:
     LocationButton( const QString &, bool bold, bool arrow, QWidget * parent = NULL );
-    virtual QSize sizeHint() const;
+    QSize sizeHint() const Q_DECL_OVERRIDE;
 protected:
-    virtual void paintEvent ( QPaintEvent * event );
+    void paintEvent ( QPaintEvent * event ) Q_DECL_OVERRIDE;
 private:
     bool b_arrow;
 };
@@ -128,9 +128,9 @@ public:
     LocationBar( VLCModel * );
     void setIndex( const QModelIndex & );
     void setModel( VLCModel * _model ) { model = _model; };
-    virtual QSize sizeHint() const;
+    QSize sizeHint() const Q_DECL_OVERRIDE;
 protected:
-    virtual void resizeEvent ( QResizeEvent * event );
+    void resizeEvent ( QResizeEvent * event ) Q_DECL_OVERRIDE;
 
 private:
     void layOut( const QSize& size );
diff --git a/modules/gui/qt4/components/playlist/playlist_model.hpp b/modules/gui/qt4/components/playlist/playlist_model.hpp
index f9d1d0c3b32bae40c8ba1ed255bbf7bbecbc2339..b70b93d269aed8e026f91f2378c23e98fba7fda0 100644
--- a/modules/gui/qt4/components/playlist/playlist_model.hpp
+++ b/modules/gui/qt4/components/playlist/playlist_model.hpp
@@ -73,39 +73,39 @@ public:
     /*** QAbstractItemModel subclassing ***/
 
     /* Data structure */
-    virtual QVariant data( const QModelIndex &index, const int role ) const;
-    virtual int rowCount( const QModelIndex &parent = QModelIndex() ) const;
-    virtual Qt::ItemFlags flags( const QModelIndex &index ) const;
-    virtual QModelIndex index( const int r, const int c, const QModelIndex &parent ) const;
-    virtual QModelIndex parent( const QModelIndex &index ) const;
+    QVariant data( const QModelIndex &index, const int role ) const Q_DECL_OVERRIDE;
+    int rowCount( const QModelIndex &parent = QModelIndex() ) const Q_DECL_OVERRIDE;
+    Qt::ItemFlags flags( const QModelIndex &index ) const Q_DECL_OVERRIDE;
+    QModelIndex index( const int r, const int c, const QModelIndex &parent ) const Q_DECL_OVERRIDE;
+    QModelIndex parent( const QModelIndex &index ) const Q_DECL_OVERRIDE;
 
     /* Drag and Drop */
-    virtual Qt::DropActions supportedDropActions() const;
-    virtual QMimeData* mimeData( const QModelIndexList &indexes ) const;
-    virtual bool dropMimeData( const QMimeData *data, Qt::DropAction action,
-                      int row, int column, const QModelIndex &target );
-    virtual QStringList mimeTypes() const;
+    Qt::DropActions supportedDropActions() const Q_DECL_OVERRIDE;
+    QMimeData* mimeData( const QModelIndexList &indexes ) const Q_DECL_OVERRIDE;
+    bool dropMimeData( const QMimeData *data, Qt::DropAction action,
+              int row, int column, const QModelIndex &target );
+    QStringList mimeTypes() const Q_DECL_OVERRIDE;
 
     /* Sort */
-    virtual void sort( const int column, Qt::SortOrder order = Qt::AscendingOrder );
+    void sort( const int column, Qt::SortOrder order = Qt::AscendingOrder ) Q_DECL_OVERRIDE;
 
     /*** VLCModelSubInterface subclassing ***/
-    virtual void rebuild( playlist_item_t * p = NULL );
-    virtual void doDelete( QModelIndexList selected );
-    virtual void createNode( QModelIndex index, QString name );
-    virtual void renameNode( QModelIndex index, QString name );
-    virtual void removeAll();
+    void rebuild( playlist_item_t * p = NULL ) Q_DECL_OVERRIDE;
+    void doDelete( QModelIndexList selected ) Q_DECL_OVERRIDE;
+    void createNode( QModelIndex index, QString name ) Q_DECL_OVERRIDE;
+    void renameNode( QModelIndex index, QString name ) Q_DECL_OVERRIDE;
+    void removeAll();
 
     /* Lookups */
-    virtual QModelIndex rootIndex() const;
-    virtual void filter( const QString& search_text, const QModelIndex & root, bool b_recursive );
-    virtual QModelIndex currentIndex() const;
-    virtual QModelIndex indexByPLID( const int i_plid, const int c ) const;
-    virtual QModelIndex indexByInputItemID( const int i_inputitem_id, const int c ) const;
-    virtual bool isTree() const;
-    virtual bool canEdit() const;
-    virtual bool action( QAction *action, const QModelIndexList &indexes );
-    virtual bool isSupportedAction( actions action, const QModelIndex & ) const;
+    QModelIndex rootIndex() const Q_DECL_OVERRIDE;
+    void filter( const QString& search_text, const QModelIndex & root, bool b_recursive ) Q_DECL_OVERRIDE;
+    QModelIndex currentIndex() const Q_DECL_OVERRIDE;
+    QModelIndex indexByPLID( const int i_plid, const int c ) const Q_DECL_OVERRIDE;
+    QModelIndex indexByInputItemID( const int i_inputitem_id, const int c ) const Q_DECL_OVERRIDE;
+    bool isTree() const Q_DECL_OVERRIDE;
+    bool canEdit() const Q_DECL_OVERRIDE;
+    bool action( QAction *action, const QModelIndexList &indexes ) Q_DECL_OVERRIDE;
+    bool isSupportedAction( actions action, const QModelIndex & ) const Q_DECL_OVERRIDE;
 
 protected:
     /* VLCModel subclassing */
diff --git a/modules/gui/qt4/components/playlist/selector.hpp b/modules/gui/qt4/components/playlist/selector.hpp
index 1c3ac1fb2157803dbffe2aa16b55ef2490065a58..e21916d828e9d6d67cc1fae5dc0513fcfa4f8ad9 100644
--- a/modules/gui/qt4/components/playlist/selector.hpp
+++ b/modules/gui/qt4/components/playlist/selector.hpp
@@ -74,7 +74,7 @@ enum ItemAction {
 class SelectorActionButton : public QFramelessButton
 {
 protected:
-    virtual void paintEvent( QPaintEvent * );
+    void paintEvent( QPaintEvent * ) Q_DECL_OVERRIDE;
 };
 
 class PLSelItem : public QWidget
@@ -124,11 +124,11 @@ public:
     int getCurrentItemCategory();
 
 protected:
-    virtual void drawBranches ( QPainter *, const QRect &, const QModelIndex & ) const;
-    virtual void dragMoveEvent ( QDragMoveEvent * event );
-    virtual bool dropMimeData ( QTreeWidgetItem *, int, const QMimeData *, Qt::DropAction );
-    virtual QStringList mimeTypes () const;
-    virtual void wheelEvent(QWheelEvent *e);
+    void drawBranches ( QPainter *, const QRect &, const QModelIndex & ) const Q_DECL_OVERRIDE;
+    void dragMoveEvent ( QDragMoveEvent * event ) Q_DECL_OVERRIDE;
+    bool dropMimeData ( QTreeWidgetItem *, int, const QMimeData *, Qt::DropAction ) Q_DECL_OVERRIDE;
+    QStringList mimeTypes () const Q_DECL_OVERRIDE;
+    void wheelEvent(QWheelEvent *e) Q_DECL_OVERRIDE;
 
 private:
     void createItems();
diff --git a/modules/gui/qt4/components/playlist/standardpanel.hpp b/modules/gui/qt4/components/playlist/standardpanel.hpp
index 57ab0aef3c5ea82c868f5371a052f8bf7ca1ef20..7b1aa04193735464ead893df43c752e0b37b23bf 100644
--- a/modules/gui/qt4/components/playlist/standardpanel.hpp
+++ b/modules/gui/qt4/components/playlist/standardpanel.hpp
@@ -75,7 +75,7 @@ public:
 
 protected:
     VLCModel *model;
-    virtual void wheelEvent( QWheelEvent *e );
+    void wheelEvent( QWheelEvent *e ) Q_DECL_OVERRIDE;
     bool popup( const QPoint &point );
 
 private:
diff --git a/modules/gui/qt4/components/playlist/views.hpp b/modules/gui/qt4/components/playlist/views.hpp
index c34aa2a5103ce912e1e6789c2a8289ff62ccc801..a1083be853f8e9c2d2e3ec01e3388daef625e347 100644
--- a/modules/gui/qt4/components/playlist/views.hpp
+++ b/modules/gui/qt4/components/playlist/views.hpp
@@ -52,9 +52,9 @@ class PlIconViewItemDelegate : public AbstractPlViewItemDelegate
 
 public:
     PlIconViewItemDelegate(QWidget *parent = 0) : AbstractPlViewItemDelegate( parent ) {}
-    virtual void paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const;
-    virtual QSize sizeHint ( const QStyleOptionViewItem & option = QStyleOptionViewItem(),
-                     const QModelIndex & index = QModelIndex() ) const;
+    void paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const Q_DECL_OVERRIDE;
+    QSize sizeHint ( const QStyleOptionViewItem & option = QStyleOptionViewItem(),
+                     const QModelIndex & index = QModelIndex() ) const Q_DECL_OVERRIDE;
 };
 
 class PlListViewItemDelegate : public AbstractPlViewItemDelegate
@@ -64,8 +64,8 @@ class PlListViewItemDelegate : public AbstractPlViewItemDelegate
 public:
     PlListViewItemDelegate(QWidget *parent = 0) : AbstractPlViewItemDelegate(parent) {}
 
-    virtual void paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const;
-    virtual QSize sizeHint ( const QStyleOptionViewItem & option, const QModelIndex & index ) const;
+    void paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const Q_DECL_OVERRIDE;
+    QSize sizeHint ( const QStyleOptionViewItem & option, const QModelIndex & index ) const Q_DECL_OVERRIDE;
 };
 
 class PlTreeViewItemDelegate : public AbstractPlViewItemDelegate
@@ -75,7 +75,7 @@ class PlTreeViewItemDelegate : public AbstractPlViewItemDelegate
 public:
     PlTreeViewItemDelegate(QWidget *parent = 0) : AbstractPlViewItemDelegate(parent) {}
 
-    virtual void paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const;
+    void paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const Q_DECL_OVERRIDE;
 };
 
 class CellPixmapDelegate : public QStyledItemDelegate
@@ -84,7 +84,7 @@ class CellPixmapDelegate : public QStyledItemDelegate
 
 public:
     CellPixmapDelegate(QWidget *parent = 0) : QStyledItemDelegate(parent) {}
-    virtual void paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const;
+    void paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const Q_DECL_OVERRIDE;
 };
 
 class PlIconView : public QListView
@@ -94,9 +94,9 @@ class PlIconView : public QListView
 public:
     PlIconView( QAbstractItemModel *model, QWidget *parent = 0 );
 protected:
-    virtual void startDrag ( Qt::DropActions supportedActions );
-    virtual void dragMoveEvent ( QDragMoveEvent * event );
-    virtual bool viewportEvent ( QEvent * );
+    void startDrag ( Qt::DropActions supportedActions ) Q_DECL_OVERRIDE;
+    void dragMoveEvent ( QDragMoveEvent * event ) Q_DECL_OVERRIDE;
+    bool viewportEvent ( QEvent * ) Q_DECL_OVERRIDE;
 };
 
 class PlListView : public QListView
@@ -106,10 +106,10 @@ class PlListView : public QListView
 public:
     PlListView( QAbstractItemModel *model, QWidget *parent = 0 );
 protected:
-    virtual void startDrag ( Qt::DropActions supportedActions );
-    virtual void dragMoveEvent ( QDragMoveEvent * event );
-    virtual void keyPressEvent( QKeyEvent *event );
-    virtual bool viewportEvent ( QEvent * );
+    void startDrag ( Qt::DropActions supportedActions ) Q_DECL_OVERRIDE;
+    void dragMoveEvent ( QDragMoveEvent * event ) Q_DECL_OVERRIDE;
+    void keyPressEvent( QKeyEvent *event ) Q_DECL_OVERRIDE;
+    bool viewportEvent ( QEvent * ) Q_DECL_OVERRIDE;
 };
 
 class PlTreeView : public QTreeView
@@ -119,10 +119,10 @@ class PlTreeView : public QTreeView
 public:
     PlTreeView( QAbstractItemModel *, QWidget *parent = 0 );
 protected:
-    virtual void startDrag ( Qt::DropActions supportedActions );
-    virtual void dragMoveEvent ( QDragMoveEvent * event );
-    virtual void keyPressEvent( QKeyEvent *event );
-    virtual void setModel( QAbstractItemModel * );
+    void startDrag ( Qt::DropActions supportedActions ) Q_DECL_OVERRIDE;
+    void dragMoveEvent ( QDragMoveEvent * event ) Q_DECL_OVERRIDE;
+    void keyPressEvent( QKeyEvent *event ) Q_DECL_OVERRIDE;
+    void setModel( QAbstractItemModel * ) Q_DECL_OVERRIDE;
 };
 
 class PicFlowView : public QAbstractItemView
@@ -131,19 +131,19 @@ class PicFlowView : public QAbstractItemView
 public:
     PicFlowView( QAbstractItemModel *model, QWidget *parent = 0 );
 
-    virtual QRect visualRect(const QModelIndex&) const;
-    virtual void scrollTo(const QModelIndex&, QAbstractItemView::ScrollHint);
-    virtual QModelIndex indexAt(const QPoint&) const;
-    virtual void setModel(QAbstractItemModel *model);
+    QRect visualRect(const QModelIndex&) const Q_DECL_OVERRIDE;
+    void scrollTo(const QModelIndex&, QAbstractItemView::ScrollHint) Q_DECL_OVERRIDE;
+    QModelIndex indexAt(const QPoint&) const Q_DECL_OVERRIDE;
+    void setModel(QAbstractItemModel *model) Q_DECL_OVERRIDE;
 
 protected:
-    virtual int horizontalOffset() const;
-    virtual int verticalOffset() const;
-    virtual QModelIndex moveCursor(QAbstractItemView::CursorAction, Qt::KeyboardModifiers);
-    virtual bool isIndexHidden(const QModelIndex&) const;
-    virtual QRegion visualRegionForSelection(const QItemSelection&) const;
-    virtual void setSelection(const QRect&, QFlags<QItemSelectionModel::SelectionFlag>);
-    virtual bool viewportEvent ( QEvent * );
+    int horizontalOffset() const Q_DECL_OVERRIDE;
+    int verticalOffset() const Q_DECL_OVERRIDE;
+    QModelIndex moveCursor(QAbstractItemView::CursorAction, Qt::KeyboardModifiers) Q_DECL_OVERRIDE;
+    bool isIndexHidden(const QModelIndex&) const Q_DECL_OVERRIDE;
+    QRegion visualRegionForSelection(const QItemSelection&) const Q_DECL_OVERRIDE;
+    void setSelection(const QRect&, QFlags<QItemSelectionModel::SelectionFlag>) Q_DECL_OVERRIDE;
+    bool viewportEvent ( QEvent * ) Q_DECL_OVERRIDE;
 
 private:
     PictureFlow *picFlow;
diff --git a/modules/gui/qt4/components/playlist/vlc_model.hpp b/modules/gui/qt4/components/playlist/vlc_model.hpp
index 8ef4f920ccb8dd0e0b0583410ee87c6e8bea7900..b23b07644b6ed681b0ed2540344af406f5f13843 100644
--- a/modules/gui/qt4/components/playlist/vlc_model.hpp
+++ b/modules/gui/qt4/components/playlist/vlc_model.hpp
@@ -124,14 +124,14 @@ public:
     virtual ~VLCModel();
 
     /*** QAbstractItemModel subclassing ***/
-    virtual int columnCount( const QModelIndex &parent = QModelIndex() ) const;
-    QVariant headerData( int, Qt::Orientation, int ) const;
+    int columnCount( const QModelIndex &parent = QModelIndex() ) const Q_DECL_OVERRIDE;
+    QVariant headerData( int, Qt::Orientation, int ) const Q_DECL_OVERRIDE;
 
     /*** VLCModelSubInterface subclassing ***/
-    virtual int itemId( const QModelIndex &, int type ) const;
-    virtual QString getURI( const QModelIndex &index ) const;
-    virtual input_item_t *getInputItem( const QModelIndex & ) const;
-    virtual QString getTitle( const QModelIndex &index ) const;
+    int itemId( const QModelIndex &, int type ) const Q_DECL_OVERRIDE;
+    QString getURI( const QModelIndex &index ) const Q_DECL_OVERRIDE;
+    input_item_t *getInputItem( const QModelIndex & ) const Q_DECL_OVERRIDE;
+    QString getTitle( const QModelIndex &index ) const Q_DECL_OVERRIDE;
 
     /* Custom */
     static int columnToMeta( int _column );
@@ -141,7 +141,7 @@ public:
 
 public slots:
     /* slots handlers */
-    virtual void ensureArtRequested( const QModelIndex &index );
+    void ensureArtRequested( const QModelIndex &index ) Q_DECL_OVERRIDE;
 
 signals:
     void currentIndexChanged( const QModelIndex& );
diff --git a/modules/gui/qt4/components/preferences_widgets.hpp b/modules/gui/qt4/components/preferences_widgets.hpp
index 18d495504752bc1cbebc0cb969a7944414698b70..714f688389f46bec6756a9f079f2296e04d9998b 100644
--- a/modules/gui/qt4/components/preferences_widgets.hpp
+++ b/modules/gui/qt4/components/preferences_widgets.hpp
@@ -118,7 +118,7 @@ class VIntConfigControl : public ConfigControl
 Q_OBJECT
 public:
     virtual int getValue() const = 0;
-    virtual int getType() const;
+    int getType() const Q_DECL_OVERRIDE;
     virtual void doApply();
 protected:
     VIntConfigControl( vlc_object_t *a, module_config_t *b ) :
@@ -132,15 +132,15 @@ public:
     IntegerConfigControl( vlc_object_t *, module_config_t *, QWidget * );
     IntegerConfigControl( vlc_object_t *, module_config_t *,
                           QLabel*, QSpinBox* );
-    virtual int getValue() const;
+    int getValue() const Q_DECL_OVERRIDE;
 protected:
     QSpinBox *spin;
-    virtual void changeVisibility( bool b )
+     void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         spin->setVisible( b );
         if ( label ) label->setVisible( b );
     }
-    virtual void fillGrid( QGridLayout*, int );
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
 private:
     QLabel *label;
     void finish();
@@ -165,10 +165,10 @@ class IntegerRangeSliderConfigControl : public VIntConfigControl
 public:
     IntegerRangeSliderConfigControl( vlc_object_t *, module_config_t *,
                                 QLabel *, QSlider * );
-    virtual int getValue() const;
+    int getValue() const Q_DECL_OVERRIDE;
 protected:
     QSlider *slider;
-    virtual void changeVisibility( bool b )
+    void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         slider->setVisible( b );
         if ( label ) label->setVisible( b );
@@ -185,14 +185,14 @@ public:
     IntegerListConfigControl( vlc_object_t *, module_config_t *, QWidget *, bool );
     IntegerListConfigControl( vlc_object_t *, module_config_t *, QLabel *,
                               QComboBox*, bool );
-    virtual int getValue() const;
+    int getValue() const Q_DECL_OVERRIDE;
 protected:
-    virtual void changeVisibility( bool b )
+    void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         combo->setVisible( b );
         if ( label ) label->setVisible( b );
     }
-    virtual void fillGrid( QGridLayout*, int );
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
 private:
     void finish(module_config_t * );
     QLabel *label;
@@ -207,14 +207,14 @@ public:
     BoolConfigControl( vlc_object_t *, module_config_t *, QWidget * );
     BoolConfigControl( vlc_object_t *, module_config_t *,
                        QLabel *, QAbstractButton* );
-    virtual int getValue() const;
-    virtual int getType() const;
+    int getValue() const Q_DECL_OVERRIDE;
+    int getType() const Q_DECL_OVERRIDE;
 protected:
-    virtual void changeVisibility( bool b )
+    void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         checkbox->setVisible( b );
     }
-    virtual void fillGrid( QGridLayout*, int );
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
 private:
     QAbstractButton *checkbox;
     void finish();
@@ -228,14 +228,14 @@ public:
     ColorConfigControl( vlc_object_t *, module_config_t *,
                         QLabel *, QAbstractButton* );
     virtual ~ColorConfigControl() { delete color_px; }
-    virtual int getValue() const;
+    int getValue() const Q_DECL_OVERRIDE;
 protected:
-    virtual void changeVisibility( bool b )
+    void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         color_but->setVisible( b );
         if ( label ) label->setVisible( b );
     }
-    virtual void fillGrid( QGridLayout*, int );
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
 private:
     QLabel *label;
     QAbstractButton *color_but;
@@ -254,8 +254,8 @@ class VFloatConfigControl : public ConfigControl
     Q_OBJECT
 public:
     virtual float getValue() const = 0;
-    virtual int getType() const;
-    virtual void doApply();
+    int getType() const Q_DECL_OVERRIDE;
+    void doApply() Q_DECL_OVERRIDE;
 protected:
     VFloatConfigControl( vlc_object_t *a, module_config_t *b ) :
                 ConfigControl(a,b) {};
@@ -268,15 +268,15 @@ public:
     FloatConfigControl( vlc_object_t *, module_config_t *, QWidget * );
     FloatConfigControl( vlc_object_t *, module_config_t *,
                         QLabel*, QDoubleSpinBox* );
-    virtual float getValue() const;
+    float getValue() const Q_DECL_OVERRIDE;
 
 protected:
-    virtual void changeVisibility( bool b )
+    void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         spin->setVisible( b );
         if ( label ) label->setVisible( b );
     }
-    virtual void fillGrid( QGridLayout*, int );
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
     QDoubleSpinBox *spin;
 
 private:
@@ -303,8 +303,8 @@ class VStringConfigControl : public ConfigControl
     Q_OBJECT
 public:
     virtual QString getValue() const = 0;
-    virtual int getType() const;
-    virtual void doApply();
+    int getType() const Q_DECL_OVERRIDE;
+    void doApply() Q_DECL_OVERRIDE;
 protected:
     VStringConfigControl( vlc_object_t *a, module_config_t *b ) :
                 ConfigControl(a,b) {};
@@ -318,14 +318,14 @@ public:
                          QWidget *, bool pwd );
     StringConfigControl( vlc_object_t *, module_config_t *, QLabel *,
                          QLineEdit*,  bool pwd );
-    virtual QString getValue() const { return text->text(); };
+    QString getValue() const Q_DECL_OVERRIDE { return text->text(); };
 protected:
-    virtual void changeVisibility( bool b )
+    void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         text->setVisible( b );
         if ( label ) label->setVisible( b );
     }
-    virtual void fillGrid( QGridLayout*, int );
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
 private:
     void finish();
     QLineEdit *text;
@@ -339,17 +339,17 @@ public:
     FileConfigControl( vlc_object_t *, module_config_t *, QWidget * );
     FileConfigControl( vlc_object_t *, module_config_t *, QLabel *,
                        QLineEdit *, QPushButton * );
-    virtual QString getValue() const { return text->text(); };
+    QString getValue() const Q_DECL_OVERRIDE { return text->text(); };
 public slots:
     virtual void updateField();
 protected:
-    virtual void changeVisibility( bool b )
+    void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         text->setVisible( b );
         browse->setVisible( b );
         if ( label ) label->setVisible( b );
     }
-    virtual void fillGrid( QGridLayout*, int );
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
     void finish();
     QLineEdit *text;
     QLabel *label;
@@ -364,7 +364,7 @@ public:
     DirectoryConfigControl( vlc_object_t *, module_config_t *, QLabel *,
                             QLineEdit *, QPushButton * );
 public slots:
-    virtual void updateField();
+    void updateField() Q_DECL_OVERRIDE;
 };
 
 class FontConfigControl : public VStringConfigControl
@@ -374,14 +374,14 @@ public:
     FontConfigControl( vlc_object_t *, module_config_t *, QWidget * );
     FontConfigControl( vlc_object_t *, module_config_t *, QLabel *,
                        QFontComboBox *);
-    virtual QString getValue() const { return font->currentFont().family(); }
+    QString getValue() const Q_DECL_OVERRIDE  { return font->currentFont().family(); }
 protected:
-    virtual void changeVisibility( bool b )
+    void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         font->setVisible( b );
         if ( label ) label->setVisible( b );
     }
-    virtual void fillGrid( QGridLayout*, int );
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
     QLabel *label;
     QFontComboBox *font;
 };
@@ -393,14 +393,14 @@ public:
     ModuleConfigControl( vlc_object_t *, module_config_t *, QWidget * );
     ModuleConfigControl( vlc_object_t *, module_config_t *, QLabel *,
                          QComboBox* );
-    virtual QString getValue() const;
+    QString getValue() const Q_DECL_OVERRIDE;
 protected:
-    virtual void changeVisibility( bool b )
+    void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         combo->setVisible( b );
         if ( label ) label->setVisible( b );
     }
-    virtual void fillGrid( QGridLayout*, int );
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
 private:
     void finish( );
     QLabel *label;
@@ -421,12 +421,12 @@ public:
 //    ModuleListConfigControl( vlc_object_t *, module_config_t *, QLabel *,
 //                         QComboBox*, bool );
     virtual ~ModuleListConfigControl();
-    virtual QString getValue() const;
+    QString getValue() const Q_DECL_OVERRIDE;
 public slots:
     void onUpdate();
 protected:
-    virtual void changeVisibility( bool );
-    virtual void fillGrid( QGridLayout*, int );
+    void changeVisibility( bool ) Q_DECL_OVERRIDE;
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
 private:
     void finish( bool );
     void checkbox_lists(module_t*);
@@ -443,14 +443,14 @@ public:
     StringListConfigControl( vlc_object_t *, module_config_t *, QWidget * );
     StringListConfigControl( vlc_object_t *, module_config_t *, QLabel *,
                              QComboBox*, bool );
-    virtual QString getValue() const;
+    QString getValue() const Q_DECL_OVERRIDE;
 protected:
-    virtual void changeVisibility( bool b )
+    void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         combo->setVisible( b );
         if ( label ) label->setVisible( b );
     }
-    virtual void fillGrid( QGridLayout*, int );
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
     QComboBox *combo;
 private:
     void finish(module_config_t * );
@@ -476,7 +476,7 @@ public:
     StringConfigControl( vlc_object_t *, module_config_t *, QWidget *, bool
                          bycat );
     virtual ~StringConfigControl();
-    virtual QString getValue();
+    QString getValue() Q_DECL_OVERRIDE;
 private:
     QVector<ModuleCheckBox> checkboxes;
     QLineEdit *text;
@@ -494,17 +494,17 @@ class KeySelectorControl : public ConfigControl
 
 public:
     KeySelectorControl( vlc_object_t *, module_config_t *, QWidget * );
-    virtual int getType() const;
-    virtual void doApply();
+    int getType() const Q_DECL_OVERRIDE;
+    void doApply() Q_DECL_OVERRIDE;
 
 protected:
-    virtual bool eventFilter( QObject *, QEvent * );
-    virtual void changeVisibility( bool b )
+    bool eventFilter( QObject *, QEvent * ) Q_DECL_OVERRIDE;
+    void changeVisibility( bool b ) Q_DECL_OVERRIDE
     {
         table->setVisible( b );
         if ( label ) label->setVisible( b );
     }
-    virtual void fillGrid( QGridLayout*, int );
+    void fillGrid( QGridLayout*, int ) Q_DECL_OVERRIDE;
 
 private:
     void buildAppHotkeysList( QWidget *rootWidget );
diff --git a/modules/gui/qt4/components/sout/profile_selector.hpp b/modules/gui/qt4/components/sout/profile_selector.hpp
index 5afcc13bf26aa872b69f49f6c365039ebc3ca028..1b732b1bb2e2f9f0c33c0dd8157088f60f43556f 100644
--- a/modules/gui/qt4/components/sout/profile_selector.hpp
+++ b/modules/gui/qt4/components/sout/profile_selector.hpp
@@ -82,7 +82,7 @@ private:
     void loadCapabilities();
     void reset();
 protected slots:
-    virtual void close();
+    void close() Q_DECL_OVERRIDE;
 private slots:
     void muxSelected();
     void codecSelected();
diff --git a/modules/gui/qt4/components/sout/sout_widgets.hpp b/modules/gui/qt4/components/sout/sout_widgets.hpp
index a03c32fe96cd84a1a353f56af87b10624c4c9359..1c3e6a7411342addc50deb6723b88f584d420ba8 100644
--- a/modules/gui/qt4/components/sout/sout_widgets.hpp
+++ b/modules/gui/qt4/components/sout/sout_widgets.hpp
@@ -66,7 +66,7 @@ class FileDestBox: public VirtualDestBox
     Q_OBJECT
     public:
         FileDestBox( QWidget *_parent = NULL, intf_thread_t * = NULL );
-        virtual QString getMRL( const QString& );
+        QString getMRL( const QString& ) Q_DECL_OVERRIDE;
     private:
         QLineEdit *fileEdit;
         intf_thread_t *p_intf;
@@ -79,7 +79,7 @@ class HTTPDestBox: public VirtualDestBox
     Q_OBJECT
     public:
         HTTPDestBox( QWidget *_parent = NULL );
-        virtual QString getMRL( const QString& );
+        QString getMRL( const QString& ) Q_DECL_OVERRIDE;
     private:
         QLineEdit *HTTPEdit;
         QSpinBox *HTTPPort;
@@ -90,7 +90,7 @@ class MMSHDestBox: public VirtualDestBox
     Q_OBJECT
     public:
         MMSHDestBox( QWidget *_parent = NULL );
-        virtual QString getMRL( const QString& );
+        QString getMRL( const QString& ) Q_DECL_OVERRIDE;
     private:
         QLineEdit *MMSHEdit;
         QSpinBox *MMSHPort;
@@ -101,7 +101,7 @@ class RTSPDestBox: public VirtualDestBox
     Q_OBJECT
     public:
         RTSPDestBox( QWidget *_parent = NULL );
-        virtual QString getMRL( const QString& );
+        QString getMRL( const QString& ) Q_DECL_OVERRIDE;
     private:
         QLineEdit *RTSPEdit;
         QSpinBox *RTSPPort;
@@ -112,7 +112,7 @@ class UDPDestBox: public VirtualDestBox
     Q_OBJECT
     public:
         UDPDestBox( QWidget *_parent = NULL );
-        virtual QString getMRL( const QString& );
+        QString getMRL( const QString& ) Q_DECL_OVERRIDE;
     private:
         QLineEdit *UDPEdit;
         QSpinBox *UDPPort;
@@ -123,7 +123,7 @@ class RTPDestBox: public VirtualDestBox
     Q_OBJECT
     public:
         RTPDestBox( QWidget *_parent = NULL, const char *mux = NULL );
-        virtual QString getMRL( const QString& );
+        QString getMRL( const QString& ) Q_DECL_OVERRIDE;
     private:
         QLineEdit *RTPEdit;
         QSpinBox *RTPPort;
@@ -136,7 +136,7 @@ class ICEDestBox: public VirtualDestBox
     Q_OBJECT
     public:
         ICEDestBox( QWidget *_parent = NULL );
-        virtual QString getMRL( const QString& );
+        QString getMRL( const QString& ) Q_DECL_OVERRIDE;
     private:
         QLineEdit *ICEEdit;
         QLineEdit *ICEMountEdit;
diff --git a/modules/gui/qt4/dialogs/convert.hpp b/modules/gui/qt4/dialogs/convert.hpp
index c2b6a380efc71947ca84ee4fbabd494520d8cc92..9a9727e69e9d9cb3c1fd6cdaf2f5f7a717ccaa9c 100644
--- a/modules/gui/qt4/dialogs/convert.hpp
+++ b/modules/gui/qt4/dialogs/convert.hpp
@@ -50,8 +50,8 @@ private:
     VLCProfileSelector *profile;
     QString mrl;
 private slots:
-    virtual void close();
-    virtual void cancel();
+    void close() Q_DECL_OVERRIDE;
+    void cancel() Q_DECL_OVERRIDE;
     void fileBrowse();
     void setDestinationFileExtension();
     void validate();
diff --git a/modules/gui/qt4/dialogs/extensions.hpp b/modules/gui/qt4/dialogs/extensions.hpp
index c4ae0378fcdcb3afaa6b524a17c31aec81ae086b..63c49ca43fc59ec96ee41288feb0eeedc0f77016 100644
--- a/modules/gui/qt4/dialogs/extensions.hpp
+++ b/modules/gui/qt4/dialogs/extensions.hpp
@@ -106,8 +106,8 @@ private:
     void DestroyWidget( extension_widget_t *p_widget, bool b_cond = true );
 
 protected:
-    virtual void closeEvent( QCloseEvent* );
-    virtual void keyPressEvent( QKeyEvent* );
+    void closeEvent( QCloseEvent* ) Q_DECL_OVERRIDE;
+    void keyPressEvent( QKeyEvent* ) Q_DECL_OVERRIDE;
 
 private slots:
     int TriggerClick( QObject *object );
diff --git a/modules/gui/qt4/dialogs/gototime.hpp b/modules/gui/qt4/dialogs/gototime.hpp
index 59e1fb03252cc7b432ecd81551dab9b8271c5334..9f980b221a8ad4fbbc1a702ebc22a3f7c67298d1 100644
--- a/modules/gui/qt4/dialogs/gototime.hpp
+++ b/modules/gui/qt4/dialogs/gototime.hpp
@@ -37,8 +37,8 @@ private:
     virtual ~GotoTimeDialog();
     QTimeEdit *timeEdit;
 private slots:
-    void close();
-    void cancel();
+    void close() Q_DECL_OVERRIDE;
+    void cancel() Q_DECL_OVERRIDE;
     void reset();
 
     friend class    Singleton<GotoTimeDialog>;
diff --git a/modules/gui/qt4/dialogs/help.hpp b/modules/gui/qt4/dialogs/help.hpp
index 3ef58fee45f31c058f30d38d44fbfd2d270fbab8..79851bdc4efbbdc3963133086245363791cc9688 100644
--- a/modules/gui/qt4/dialogs/help.hpp
+++ b/modules/gui/qt4/dialogs/help.hpp
@@ -45,7 +45,7 @@ private:
     virtual ~HelpDialog();
 
 public slots:
-    virtual void close() { toggleVisible(); }
+    void close() Q_DECL_OVERRIDE { toggleVisible(); }
 
     friend class    Singleton<HelpDialog>;
 };
@@ -62,7 +62,7 @@ public slots:
 
 protected:
     bool eventFilter(QObject *obj, QEvent *event);
-    virtual void showEvent ( QShowEvent * );
+    void showEvent ( QShowEvent * ) Q_DECL_OVERRIDE;
 
 private:
     bool b_advanced;
@@ -93,7 +93,7 @@ private:
     bool b_checked;
 
 private slots:
-    virtual void close() { toggleVisible(); }
+    void close() Q_DECL_OVERRIDE { toggleVisible(); }
 
     void UpdateOrDownload();
 
diff --git a/modules/gui/qt4/dialogs/mediainfo.hpp b/modules/gui/qt4/dialogs/mediainfo.hpp
index f6f9af73a908b1833716330c7d7aaea3dc3aa286..7740208ff721adff5d89cc89ee3d32d8af5b09a2 100644
--- a/modules/gui/qt4/dialogs/mediainfo.hpp
+++ b/modules/gui/qt4/dialogs/mediainfo.hpp
@@ -70,7 +70,7 @@ private slots:
     void updateAllTabs( input_item_t * );
     void clearAllTabs();
 
-    virtual void close();
+    void close() Q_DECL_OVERRIDE;
 
     void saveMeta();
     void updateButtons( int i_tab );
diff --git a/modules/gui/qt4/dialogs/openurl.hpp b/modules/gui/qt4/dialogs/openurl.hpp
index 3fb0929322b913c37b9362f31dc10750d789cd09..8522f93611b274e3b075a97d8e15dd3331fbf7a6 100644
--- a/modules/gui/qt4/dialogs/openurl.hpp
+++ b/modules/gui/qt4/dialogs/openurl.hpp
@@ -56,7 +56,7 @@ public:
     void showEvent( QShowEvent *ev );
 
 public slots:
-    virtual void close() { play(); };
+    void close() Q_DECL_OVERRIDE { play(); };
 
 };
 
diff --git a/modules/gui/qt4/dialogs/playlist.hpp b/modules/gui/qt4/dialogs/playlist.hpp
index f7a2e49f3017f0b90b0a815fd53b3e94416b78b0..a5fb283872a6965c43c3e198d95974b9b5627f74 100644
--- a/modules/gui/qt4/dialogs/playlist.hpp
+++ b/modules/gui/qt4/dialogs/playlist.hpp
@@ -46,7 +46,7 @@ public:
     bool hasPlaylistWidget();
 
 protected:
-    virtual void hideEvent( QHideEvent * );
+    void hideEvent( QHideEvent * ) Q_DECL_OVERRIDE;
 
 private:
     PlaylistWidget *playlistWidget;
diff --git a/modules/gui/qt4/dialogs/plugins.hpp b/modules/gui/qt4/dialogs/plugins.hpp
index d49c70c97296be92d3f1d3e953a41bfd8e206eb8..9b3523e6346b08c654abe08e34787044b69e3a9b 100644
--- a/modules/gui/qt4/dialogs/plugins.hpp
+++ b/modules/gui/qt4/dialogs/plugins.hpp
@@ -87,7 +87,7 @@ public:
     };
 
 protected:
-    virtual void keyPressEvent( QKeyEvent *keyEvent );
+    void keyPressEvent( QKeyEvent *keyEvent ) Q_DECL_OVERRIDE;
 
 private:
     PluginTab( intf_thread_t *p_intf );
@@ -108,7 +108,7 @@ class ExtensionTab : public QVLCFrame
     Q_OBJECT
 
 protected:
-    virtual void keyPressEvent( QKeyEvent *keyEvent );
+    void keyPressEvent( QKeyEvent *keyEvent ) Q_DECL_OVERRIDE;
 
 private:
     ExtensionTab( intf_thread_t *p_intf );
@@ -195,10 +195,10 @@ public:
         FilenameRole
     };
 
-    virtual QVariant data( const QModelIndex& index, int role ) const;
-    virtual QModelIndex index( int row, int column = 0,
-                               const QModelIndex& = QModelIndex() ) const;
-    virtual int rowCount( const QModelIndex& = QModelIndex() ) const;
+    QVariant data( const QModelIndex& index, int role ) const Q_DECL_OVERRIDE;
+    QModelIndex index( int row, int column = 0,
+                       const QModelIndex& = QModelIndex() ) const Q_DECL_OVERRIDE;
+    int rowCount( const QModelIndex& = QModelIndex() ) const Q_DECL_OVERRIDE;
 
 protected slots:
     void updateList();
@@ -214,12 +214,12 @@ class AddonsListModel: public ExtensionListModel
 
 public:
     AddonsListModel( AddonsManager *AM, QObject *parent = 0 );
-    virtual QVariant data( const QModelIndex& index, int role ) const;
-    virtual QModelIndex index( int row, int column = 0,
-                               const QModelIndex& = QModelIndex() ) const;
-    virtual int rowCount( const QModelIndex& = QModelIndex() ) const;
-    virtual Qt::ItemFlags flags( const QModelIndex &index ) const;
-    virtual bool setData( const QModelIndex &index, const QVariant &value, int role );
+    QVariant data( const QModelIndex& index, int role ) const Q_DECL_OVERRIDE;
+    QModelIndex index( int row, int column = 0,
+                       const QModelIndex& = QModelIndex() ) const Q_DECL_OVERRIDE;
+    int rowCount( const QModelIndex& = QModelIndex() ) const Q_DECL_OVERRIDE;
+    Qt::ItemFlags flags( const QModelIndex &index ) const Q_DECL_OVERRIDE;
+    bool setData( const QModelIndex &index, const QVariant &value, int role ) Q_DECL_OVERRIDE;
 
     enum
     {
@@ -268,7 +268,7 @@ public slots:
     virtual void setStatusFilter( int );
 
 protected:
-    virtual bool filterAcceptsRow( int, const QModelIndex & ) const;
+    bool filterAcceptsRow( int, const QModelIndex & ) const Q_DECL_OVERRIDE;
 
 private:
     int i_type_filter;
@@ -283,13 +283,13 @@ public:
     ExtensionItemDelegate( QObject *parent );
     virtual ~ExtensionItemDelegate();
 
-    virtual void paint( QPainter *painter,
-                        const QStyleOptionViewItem &option,
-                        const QModelIndex &index ) const;
-    virtual QSize sizeHint( const QStyleOptionViewItem &option,
-                            const QModelIndex &index ) const;
-    virtual void initStyleOption( QStyleOptionViewItem *option,
-                                  const QModelIndex &index ) const;
+    void paint( QPainter *painter,
+                const QStyleOptionViewItem &option,
+                const QModelIndex &index ) const Q_DECL_OVERRIDE;
+    QSize sizeHint( const QStyleOptionViewItem &option,
+                    const QModelIndex &index ) const Q_DECL_OVERRIDE;
+    void initStyleOption( QStyleOptionViewItem *option,
+                          const QModelIndex &index ) const Q_DECL_OVERRIDE;
 
 protected:
     QMargins margins;
@@ -304,15 +304,15 @@ public:
     AddonItemDelegate( QObject *parent );
     ~AddonItemDelegate();
 
-    virtual void paint( QPainter *painter,
-                        const QStyleOptionViewItem &option,
-                        const QModelIndex &index ) const;
-    virtual QSize sizeHint( const QStyleOptionViewItem &option,
-                            const QModelIndex &index ) const;
-    virtual QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const;
-    virtual void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const;
-    virtual void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const;
-    virtual void setEditorData(QWidget *editor, const QModelIndex &index) const;
+    void paint( QPainter *painter,
+                const QStyleOptionViewItem &option,
+                const QModelIndex &index ) const Q_DECL_OVERRIDE;
+    QSize sizeHint( const QStyleOptionViewItem &option,
+                    const QModelIndex &index ) const Q_DECL_OVERRIDE;
+    QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const Q_DECL_OVERRIDE;
+    void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const Q_DECL_OVERRIDE;
+    void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const Q_DECL_OVERRIDE;
+    void setEditorData(QWidget *editor, const QModelIndex &index) const Q_DECL_OVERRIDE;
 
     void setAnimator( DelegateAnimationHelper *animator );
 
diff --git a/modules/gui/qt4/dialogs/toolbar.hpp b/modules/gui/qt4/dialogs/toolbar.hpp
index 276decb2001857542e1321466b6cf5967841d29f..c2073d8b913c06605e56591a4491d49f33731470 100644
--- a/modules/gui/qt4/dialogs/toolbar.hpp
+++ b/modules/gui/qt4/dialogs/toolbar.hpp
@@ -59,8 +59,8 @@ public slots:
     void setBarsTopPosition( int b );
 
 protected:
-    virtual void paintEvent(QPaintEvent *);
-    virtual bool eventFilter(QObject *obj, QEvent *event);
+    void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;
+    bool eventFilter(QObject *obj, QEvent *event) Q_DECL_OVERRIDE;
 
 private:
     QWidget * bars[3];
@@ -73,7 +73,7 @@ class WidgetListing : public QListWidget
 public:
     WidgetListing( intf_thread_t *, QWidget *_parent = 0 );
 protected:
-    virtual void startDrag( Qt::DropActions /*supportedActions*/ );
+    void startDrag( Qt::DropActions /*supportedActions*/ ) Q_DECL_OVERRIDE;
 private:
     ToolbarEditDialog *parent;
 };
@@ -114,16 +114,16 @@ public:
 
     void resetLine( const QString& );
 protected:
-    virtual void createAndAddWidget( QBoxLayout *controlLayout, int i_index,
-            buttonType_e i_type, int i_option );
-    virtual void dragEnterEvent ( QDragEnterEvent * event );
-    virtual void dragMoveEvent(QDragMoveEvent *event);
-    virtual void dropEvent ( QDropEvent * event );
-    virtual void dragLeaveEvent ( QDragLeaveEvent * event );
+    void createAndAddWidget( QBoxLayout *controlLayout, int i_index,
+                             buttonType_e i_type, int i_option ) Q_DECL_OVERRIDE;
+    void dragEnterEvent ( QDragEnterEvent * event ) Q_DECL_OVERRIDE;
+    void dragMoveEvent(QDragMoveEvent *event) Q_DECL_OVERRIDE;
+    void dropEvent ( QDropEvent * event ) Q_DECL_OVERRIDE;
+    void dragLeaveEvent ( QDragLeaveEvent * event ) Q_DECL_OVERRIDE;
 
     virtual void doAction( int );
 
-    virtual bool eventFilter( QObject *, QEvent * );
+    bool eventFilter( QObject *, QEvent * ) Q_DECL_OVERRIDE;
 
 private:
     struct doubleInt
diff --git a/modules/gui/qt4/dialogs/vlm.hpp b/modules/gui/qt4/dialogs/vlm.hpp
index a3c6e5df84174a3955edcaefc38feb4203215c0f..2bdd20e4e7ef342315482e7eb5c88c5f04890520 100644
--- a/modules/gui/qt4/dialogs/vlm.hpp
+++ b/modules/gui/qt4/dialogs/vlm.hpp
@@ -187,7 +187,7 @@ public:
     VLMBroadcast( const QString& name, const QString& input,
                   const QString& inputOptions, const QString& output,
                   bool _enable, bool _loop, VLMDialog *parent );
-    void update();
+    void update() Q_DECL_OVERRIDE;
 private:
     bool b_looped;
     bool b_playing;
diff --git a/modules/gui/qt4/main_interface.hpp b/modules/gui/qt4/main_interface.hpp
index 73ff968927ce3ba1dbf549bf4efdb743b1466392..12ddd0d586da1c17154b7e84f100159041553523 100644
--- a/modules/gui/qt4/main_interface.hpp
+++ b/modules/gui/qt4/main_interface.hpp
@@ -96,15 +96,15 @@ protected:
 #ifdef _WIN32
     virtual bool winEvent( MSG *, long * );
 #endif
-    virtual void changeEvent( QEvent * );
-    virtual void dropEvent( QDropEvent *);
-    virtual void dragEnterEvent( QDragEnterEvent * );
-    virtual void dragMoveEvent( QDragMoveEvent * );
-    virtual void dragLeaveEvent( QDragLeaveEvent * );
-    virtual void closeEvent( QCloseEvent *);
-    virtual void keyPressEvent( QKeyEvent *);
-    virtual void wheelEvent( QWheelEvent * );
-    virtual bool eventFilter(QObject *, QEvent *);
+    void changeEvent( QEvent * ) Q_DECL_OVERRIDE;
+    void dropEvent( QDropEvent *) Q_DECL_OVERRIDE;
+    void dragEnterEvent( QDragEnterEvent * ) Q_DECL_OVERRIDE;
+    void dragMoveEvent( QDragMoveEvent * ) Q_DECL_OVERRIDE;
+    void dragLeaveEvent( QDragLeaveEvent * ) Q_DECL_OVERRIDE;
+    void closeEvent( QCloseEvent *) Q_DECL_OVERRIDE;
+    void keyPressEvent( QKeyEvent *) Q_DECL_OVERRIDE;
+    void wheelEvent( QWheelEvent * ) Q_DECL_OVERRIDE;
+    bool eventFilter(QObject *, QEvent *) Q_DECL_OVERRIDE;
 
 private:
     /* Main Widgets Creation */
diff --git a/modules/gui/qt4/styles/seekstyle.hpp b/modules/gui/qt4/styles/seekstyle.hpp
index 33947bbda5f6794383990389cfd0646f59fae94d..953963db066de9e5534cfd2d448e7a79a4aafc41 100644
--- a/modules/gui/qt4/styles/seekstyle.hpp
+++ b/modules/gui/qt4/styles/seekstyle.hpp
@@ -23,6 +23,8 @@
 #ifndef SEEKSTYLE_HPP
 #define SEEKSTYLE_HPP
 
+#include "qt4.hpp"
+
 #include <inttypes.h>
 #include <QProxyStyle>
 #include <QStyleOptionSlider>
@@ -44,8 +46,8 @@ public:
 
 public:
     SeekStyle();
-    virtual int pixelMetric(PixelMetric metric, const QStyleOption * option = 0, const QWidget * widget = 0) const;
-    virtual void drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p, const QWidget *widget) const;
+    int pixelMetric(PixelMetric metric, const QStyleOption * option = 0, const QWidget * widget = 0) const Q_DECL_OVERRIDE;
+    void drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p, const QWidget *widget) const Q_DECL_OVERRIDE;
 };
 
 #endif // SEEKSTYLE_HPP
diff --git a/modules/gui/qt4/util/animators.hpp b/modules/gui/qt4/util/animators.hpp
index 42d5f6e880b36a8d34e7f905f087e9474aacde99..a2ca77df09a86760098bfb77ddae44cbd9ded067 100644
--- a/modules/gui/qt4/util/animators.hpp
+++ b/modules/gui/qt4/util/animators.hpp
@@ -21,6 +21,8 @@
 #ifndef ANIMATORS_HPP
 #define ANIMATORS_HPP
 
+#include "qt4.hpp"
+
 #include <QObject>
 #include <QList>
 #include <QString>
@@ -38,13 +40,13 @@ class BasicAnimator : public QAbstractAnimation
 public:
     BasicAnimator( QObject *parent = 0 );
     void setFps( int _fps ) { fps = _fps; interval = 1000.0 / fps; }
-    virtual int duration() const { return 1000; }
+    int duration() const Q_DECL_OVERRIDE { return 1000; }
 
 signals:
     void frameChanged();
 
 protected:
-    virtual void updateCurrentTime ( int msecs );
+    void updateCurrentTime ( int msecs ) Q_DECL_OVERRIDE;
     int fps;
     int interval;
     int current_frame;
@@ -62,11 +64,11 @@ class PixmapAnimator : public BasicAnimator
 
 public:
     PixmapAnimator( QWidget *parent, QList<QString> _frames );
-    virtual int duration() const { return interval * pixmaps.count(); }
+    int duration() const Q_DECL_OVERRIDE { return interval * pixmaps.count(); }
     virtual ~PixmapAnimator();
     QPixmap *getPixmap() { return currentPixmap; }
 protected:
-    virtual void updateCurrentTime ( int msecs );
+    void updateCurrentTime ( int msecs ) Q_DECL_OVERRIDE;
     QList<QPixmap *> pixmaps;
     QPixmap *currentPixmap;
 signals:
diff --git a/modules/gui/qt4/util/customwidgets.hpp b/modules/gui/qt4/util/customwidgets.hpp
index e1e6c6d38f4c97b243b84fe316a0d11afa1b49a3..2d05fb19fe2f8ebc5d5b09698e71e038fea52b4a 100644
--- a/modules/gui/qt4/util/customwidgets.hpp
+++ b/modules/gui/qt4/util/customwidgets.hpp
@@ -38,6 +38,7 @@
 #include <QDial>
 
 #include "animators.hpp"
+#include "qt4.hpp"
 
 class QPixmap;
 class QWidget;
@@ -47,9 +48,9 @@ class QFramelessButton : public QPushButton
     Q_OBJECT
 public:
     QFramelessButton( QWidget *parent = NULL );
-    virtual QSize sizeHint() const { return iconSize(); }
+    QSize sizeHint() const Q_DECL_OVERRIDE { return iconSize(); }
 protected:
-    virtual void paintEvent( QPaintEvent * event );
+    void paintEvent( QPaintEvent * event ) Q_DECL_OVERRIDE;
 };
 
 class VLCQDial : public QDial
@@ -58,7 +59,7 @@ class VLCQDial : public QDial
 public:
     VLCQDial( QWidget *parent = NULL );
 protected:
-    virtual void paintEvent( QPaintEvent * event );
+    void paintEvent( QPaintEvent * event ) Q_DECL_OVERRIDE;
 };
 
 class QToolButtonExt : public QToolButton
@@ -85,7 +86,7 @@ public:
                       QWidget * parent = NULL );
     void setElideMode( Qt::TextElideMode );
 protected:
-    virtual void paintEvent( QPaintEvent * event );
+    void paintEvent( QPaintEvent * event ) Q_DECL_OVERRIDE;
 private:
     Qt::TextElideMode elideMode;
 };
@@ -107,9 +108,9 @@ class QVLCDebugLevelSpinBox : public QSpinBox
 public:
     QVLCDebugLevelSpinBox( QWidget *parent ) : QSpinBox( parent ) { };
 protected:
-    virtual QString textFromValue( int ) const;
+    QString textFromValue( int ) const Q_DECL_OVERRIDE;
     /* QVLCDebugLevelSpinBox is read-only */
-    virtual int valueFromText( const QString& ) const { return -1; }
+    int valueFromText( const QString& ) const Q_DECL_OVERRIDE { return -1; }
 };
 
 /** This spinning icon, to the colors of the VLC cone, will show
diff --git a/modules/gui/qt4/util/input_slider.hpp b/modules/gui/qt4/util/input_slider.hpp
index 873b729993342badc538a76fd0f0cee34473aee9..d21f732a239aa75ce8ebc6b1d1851870a31d4798 100644
--- a/modules/gui/qt4/util/input_slider.hpp
+++ b/modules/gui/qt4/util/input_slider.hpp
@@ -59,18 +59,18 @@ public:
     void setChapters( SeekPoints * );
 
 protected:
-    virtual void mouseMoveEvent( QMouseEvent *event );
-    virtual void mousePressEvent( QMouseEvent* event );
-    virtual void mouseReleaseEvent( QMouseEvent *event );
-    virtual void wheelEvent( QWheelEvent *event );
-    virtual void enterEvent( QEvent * );
-    virtual void leaveEvent( QEvent * );
-    virtual void hideEvent( QHideEvent * );
-    virtual void paintEvent(QPaintEvent *ev);
+    void mouseMoveEvent( QMouseEvent *event ) Q_DECL_OVERRIDE;
+    void mousePressEvent( QMouseEvent* event ) Q_DECL_OVERRIDE;
+    void mouseReleaseEvent( QMouseEvent *event ) Q_DECL_OVERRIDE;
+    void wheelEvent( QWheelEvent *event ) Q_DECL_OVERRIDE;
+    void enterEvent( QEvent * ) Q_DECL_OVERRIDE;
+    void leaveEvent( QEvent * ) Q_DECL_OVERRIDE;
+    void hideEvent( QHideEvent * ) Q_DECL_OVERRIDE;
+    void paintEvent(QPaintEvent *ev) Q_DECL_OVERRIDE;
 
-    virtual bool eventFilter( QObject *obj, QEvent *event );
+    bool eventFilter( QObject *obj, QEvent *event ) Q_DECL_OVERRIDE;
 
-    virtual QSize sizeHint() const;
+    QSize sizeHint() const Q_DECL_OVERRIDE;
 
     void processReleasedButton();
     qreal handleOpacity() const;
@@ -137,11 +137,11 @@ protected:
     const static int paddingL = 3;
     const static int paddingR = 2;
 
-    virtual void paintEvent( QPaintEvent *);
-    virtual void wheelEvent( QWheelEvent *event );
-    virtual void mousePressEvent( QMouseEvent * );
-    virtual void mouseMoveEvent( QMouseEvent * );
-    virtual void mouseReleaseEvent( QMouseEvent * );
+    void paintEvent( QPaintEvent *) Q_DECL_OVERRIDE;
+    void wheelEvent( QWheelEvent *event ) Q_DECL_OVERRIDE;
+    void mousePressEvent( QMouseEvent * ) Q_DECL_OVERRIDE;
+    void mouseMoveEvent( QMouseEvent * ) Q_DECL_OVERRIDE;
+    void mouseReleaseEvent( QMouseEvent * ) Q_DECL_OVERRIDE;
 
     void processReleasedButton();
 
diff --git a/modules/gui/qt4/util/pictureflow.hpp b/modules/gui/qt4/util/pictureflow.hpp
index 1aaf924a1d3f548a0ebbc1c025904525bc3d9cbd..a4b310a2c0877900ca9653355e3ed2e8ac1b2dfb 100644
--- a/modules/gui/qt4/util/pictureflow.hpp
+++ b/modules/gui/qt4/util/pictureflow.hpp
@@ -315,8 +315,8 @@ public:
     PictureFlowSoftwareRenderer();
     ~PictureFlowSoftwareRenderer();
 
-    virtual void init();
-    virtual void paint();
+    void init() Q_DECL_OVERRIDE;
+    void paint() Q_DECL_OVERRIDE;
 
 private:
     QSize size;
diff --git a/modules/gui/qt4/util/qvlcframe.hpp b/modules/gui/qt4/util/qvlcframe.hpp
index 2747a4a332b6d98ccdc9721cdfd5c7ae8ab27ecc..3706f4d7f4b0d9d0680055477a8f5e733d4d690a 100644
--- a/modules/gui/qt4/util/qvlcframe.hpp
+++ b/modules/gui/qt4/util/qvlcframe.hpp
@@ -133,7 +133,7 @@ protected:
     {
         hide();
     }
-    virtual void keyPressEvent( QKeyEvent *keyEvent )
+    void keyPressEvent( QKeyEvent *keyEvent ) Q_DECL_OVERRIDE
     {
         if( keyEvent->key() == Qt::Key_Escape )
         {
@@ -171,7 +171,7 @@ protected:
     {
         hide();
     }
-    virtual void keyPressEvent( QKeyEvent *keyEvent )
+    void keyPressEvent( QKeyEvent *keyEvent ) Q_DECL_OVERRIDE
     {
         if( keyEvent->key() == Qt::Key_Escape )
         {
diff --git a/modules/gui/qt4/util/searchlineedit.hpp b/modules/gui/qt4/util/searchlineedit.hpp
index fe81b30547f33b579fdbf7010d4defcee97ba913..7134fb29a2d35f9759e29a1a2baabe77d65e17c0 100644
--- a/modules/gui/qt4/util/searchlineedit.hpp
+++ b/modules/gui/qt4/util/searchlineedit.hpp
@@ -58,14 +58,14 @@ class ClickLineEdit : public QLineEdit
     Q_PROPERTY( QString clickMessage READ placeholderText WRITE setPlaceholderText )
 public:
     ClickLineEdit( const QString &msg, QWidget *parent );
-    void setPlaceholderText( const QString &msg );
-    const QString& placeholderText() const { return mClickMessage; }
-    virtual void setText( const QString& txt );
+    void setPlaceholderText( const QString &msg ) Q_DECL_OVERRIDE;
+    const QString& placeholderText() const Q_DECLARE_OVERRIDE { return mClickMessage; }
+    void setText( const QString& txt ) Q_DECLARE_OVERRIDE;
 protected:
-    virtual void paintEvent( QPaintEvent *e );
-    virtual void dropEvent( QDropEvent *ev );
-    virtual void focusInEvent( QFocusEvent *ev );
-    virtual void focusOutEvent( QFocusEvent *ev );
+    void paintEvent( QPaintEvent *e ) Q_DECL_OVERRIDE;
+    void dropEvent( QDropEvent *ev ) Q_DECL_OVERRIDE;
+    void focusInEvent( QFocusEvent *ev ) Q_DECL_OVERRIDE;
+    void focusOutEvent( QFocusEvent *ev ) Q_DECL_OVERRIDE;
 private:
     QString mClickMessage;
     bool mDrawClickMsg;
@@ -112,7 +112,7 @@ public:
     SearchLineEdit(QWidget *parent = 0);
     virtual ~SearchLineEdit() {}
 
-    virtual QSize sizeHint() const { return QSize(150, 40); }
+    QSize sizeHint() const Q_DECL_OVERRIDE { return QSize(150, 40); }
 
 public slots:
     void clear() {}
diff --git a/modules/gui/qt4/util/timetooltip.hpp b/modules/gui/qt4/util/timetooltip.hpp
index ea6535d32b20931da30403a6942a4eb73129902a..f93811050ad2146e13898ca4dcde47348f2be114 100644
--- a/modules/gui/qt4/util/timetooltip.hpp
+++ b/modules/gui/qt4/util/timetooltip.hpp
@@ -22,6 +22,8 @@
 #ifndef TIMETOOLTIP_H
 #define TIMETOOLTIP_H
 
+#include "qt4.hpp"
+
 #include <QWidget>
 #include <QBitmap>
 
@@ -40,7 +42,7 @@ public:
     virtual void show();
 
 protected:
-    virtual void paintEvent( QPaintEvent * );
+    void paintEvent( QPaintEvent * ) Q_DECL_OVERRIDE;
 
 private:
     void adjustPosition();
diff --git a/modules/gui/qt4/util/validators.hpp b/modules/gui/qt4/util/validators.hpp
index 4a0cece7d7f759e38d1900f5d4cf261932377761..9836f49dbcfd97ac22b5db9504231e697f780d64 100644
--- a/modules/gui/qt4/util/validators.hpp
+++ b/modules/gui/qt4/util/validators.hpp
@@ -21,6 +21,8 @@
 #ifndef VALIDATORS_HPP
 #define VALIDATORS_HPP
 
+#include "qt4.hpp"
+
 #include <QValidator>
 
 class UrlValidator : public QValidator
@@ -28,8 +30,8 @@ class UrlValidator : public QValidator
    Q_OBJECT
 public:
    UrlValidator( QObject *parent ) : QValidator( parent ) { }
-   virtual QValidator::State validate( QString&, int& ) const;
-   virtual void fixup ( QString & input ) const;
+   QValidator::State validate( QString&, int& ) const Q_DECL_OVERRIDE;
+   void fixup ( QString & input ) const Q_DECL_OVERRIDE;
 };
 
 #endif // VALIDATORS_HPP