diff --git a/YACReader/bookmarks_dialog.h b/YACReader/bookmarks_dialog.h
index 21b0c559..97b075bc 100644
--- a/YACReader/bookmarks_dialog.h
+++ b/YACReader/bookmarks_dialog.h
@@ -26,8 +26,8 @@ protected:
 
     QSize coverSize;
 
-    bool eventFilter(QObject *obj, QEvent *event);
-    void keyPressEvent(QKeyEvent *event);
+    bool eventFilter(QObject *obj, QEvent *event) override;
+    void keyPressEvent(QKeyEvent *event) override;
     //QPropertyAnimation * animation;
 
 public:
diff --git a/YACReader/goto_dialog.h b/YACReader/goto_dialog.h
index a80d0d8a..3e16a974 100644
--- a/YACReader/goto_dialog.h
+++ b/YACReader/goto_dialog.h
@@ -24,7 +24,7 @@ private:
 public slots:
     void goTo();
     void setNumPages(unsigned int numPages);
-    void open();
+    void open() override;
 signals:
     void goToPage(unsigned int page);
 };
diff --git a/YACReader/goto_flow.h b/YACReader/goto_flow.h
index ff36064a..d119e8b5 100644
--- a/YACReader/goto_flow.h
+++ b/YACReader/goto_flow.h
@@ -30,11 +30,11 @@ class GoToFlow : public GoToFlowWidget
     Q_OBJECT
 public:
     GoToFlow(QWidget *parent = nullptr, FlowType flowType = CoverFlowLike);
-    ~GoToFlow();
+    ~GoToFlow() override;
     bool ready; //comic is ready for read.
 private:
     YACReaderFlow *flow;
-    void keyPressEvent(QKeyEvent *event);
+    void keyPressEvent(QKeyEvent *event) override;
     //Comic * comic;
     QSize imageSize;
 
@@ -45,22 +45,22 @@ private:
     QVector<QByteArray> rawImages;
     QTimer *updateTimer;
     PageLoader *worker;
-    virtual void wheelEvent(QWheelEvent *event);
+    void wheelEvent(QWheelEvent *event) override;
     QMutex mutexGoToFlow;
 
 private slots:
     void preload();
     void updateImageData();
-    void resizeEvent(QResizeEvent *event);
+    void resizeEvent(QResizeEvent *event) override;
 
 public slots:
-    void centerSlide(int slide);
-    void reset();
-    void setNumSlides(unsigned int slides);
-    void setImageReady(int index, const QByteArray &image);
-    void setFlowType(FlowType flowType);
-    void updateConfig(QSettings *settings);
-    void setFlowRightToLeft(bool b);
+    void centerSlide(int slide) override;
+    void reset() override;
+    void setNumSlides(unsigned int slides) override;
+    void setImageReady(int index, const QByteArray &image) override;
+    void setFlowType(FlowType flowType) override;
+    void updateConfig(QSettings *settings) override;
+    void setFlowRightToLeft(bool b) override;
 
 signals:
     void goToPage(unsigned int page);
@@ -73,7 +73,7 @@ class PageLoader : public QThread
 {
 public:
     PageLoader(QMutex *m);
-    ~PageLoader();
+    ~PageLoader() override;
     // returns FALSE if worker is still busy and can't take the task
     bool busy() const;
     void generate(int index, QSize size, const QByteArray &rImage);
@@ -82,7 +82,7 @@ public:
     QImage result() const { return img; }
 
 protected:
-    void run();
+    void run() override;
 
 private:
     QMutex *mutex;
diff --git a/YACReader/goto_flow_gl.h b/YACReader/goto_flow_gl.h
index 5ec92151..0e827164 100644
--- a/YACReader/goto_flow_gl.h
+++ b/YACReader/goto_flow_gl.h
@@ -17,23 +17,23 @@ class GoToFlowGL : public GoToFlowWidget
     Q_OBJECT
 public:
     GoToFlowGL(QWidget *parent = nullptr, FlowType flowType = CoverFlowLike);
-    ~GoToFlowGL();
-    void reset();
-    void centerSlide(int slide);
-    void setFlowType(FlowType flowType);
-    void setNumSlides(unsigned int slides);
-    void setImageReady(int index, const QByteArray &image);
+    ~GoToFlowGL() override;
+    void reset() override;
+    void centerSlide(int slide) override;
+    void setFlowType(FlowType flowType) override;
+    void setNumSlides(unsigned int slides) override;
+    void setImageReady(int index, const QByteArray &image) override;
 
     void updateConfig(QSettings *settings);
-    void setFlowRightToLeft(bool b);
+    void setFlowRightToLeft(bool b) override;
 
 signals:
     void goToPage(unsigned int page);
 
 private:
     YACReaderPageFlowGL *flow;
-    void keyPressEvent(QKeyEvent *event);
-    void resizeEvent(QResizeEvent *event);
+    void keyPressEvent(QKeyEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
     //Comic * comic;
     QSize imageSize;
 };
diff --git a/YACReader/goto_flow_toolbar.h b/YACReader/goto_flow_toolbar.h
index f31c50fe..0fae6884 100644
--- a/YACReader/goto_flow_toolbar.h
+++ b/YACReader/goto_flow_toolbar.h
@@ -21,7 +21,7 @@ private:
     QPushButton *goToButton;
     QLabel *pageHint;
     QWidget *bar;
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 
 public:
     GoToFlowToolBar(QWidget *parent = nullptr);
diff --git a/YACReader/goto_flow_widget.h b/YACReader/goto_flow_widget.h
index 0720d55a..95a76578 100644
--- a/YACReader/goto_flow_widget.h
+++ b/YACReader/goto_flow_widget.h
@@ -20,7 +20,7 @@ protected:
 
 public:
     GoToFlowWidget(QWidget *paret = nullptr);
-    virtual ~GoToFlowWidget() = 0;
+    ~GoToFlowWidget() override = 0;
 public slots:
     virtual void reset() = 0;
     virtual void centerSlide(int slide) = 0;
@@ -33,7 +33,7 @@ public slots:
     virtual void setFlowRightToLeft(bool b) = 0;
 
 protected:
-    void keyPressEvent(QKeyEvent *event);
+    void keyPressEvent(QKeyEvent *event) override;
     //bool eventFilter(QObject *, QEvent *);
 };
 
diff --git a/YACReader/magnifying_glass.h b/YACReader/magnifying_glass.h
index f7c951e8..c1ca71e3 100644
--- a/YACReader/magnifying_glass.h
+++ b/YACReader/magnifying_glass.h
@@ -12,16 +12,16 @@ class MagnifyingGlass : public QLabel
 private:
     float zoomLevel;
     void setup(const QSize &size);
-    void keyPressEvent(QKeyEvent *event);
+    void keyPressEvent(QKeyEvent *event) override;
 
 public:
     MagnifyingGlass(int width, int height, QWidget *parent);
     MagnifyingGlass(const QSize &size, QWidget *parent);
-    void mouseMoveEvent(QMouseEvent *event);
+    void mouseMoveEvent(QMouseEvent *event) override;
 public slots:
     void updateImage(int x, int y);
     void updateImage();
-    void wheelEvent(QWheelEvent *event);
+    void wheelEvent(QWheelEvent *event) override;
     void zoomIn();
     void zoomOut();
     void sizeUp();
diff --git a/YACReader/main.cpp b/YACReader/main.cpp
index 858b5e66..a67cbc62 100644
--- a/YACReader/main.cpp
+++ b/YACReader/main.cpp
@@ -37,7 +37,7 @@ public:
     }
 
 protected:
-    bool event(QEvent *event)
+    bool event(QEvent *event) override
     {
         switch (event->type()) {
         case QEvent::FileOpen:
diff --git a/YACReader/main_window_viewer.h b/YACReader/main_window_viewer.h
index ee505c71..b7e96d06 100644
--- a/YACReader/main_window_viewer.h
+++ b/YACReader/main_window_viewer.h
@@ -156,11 +156,11 @@ private:
     void getSiblingComics(QString path, QString currentComic);
 
     //! Manejadores de evento:
-    void keyPressEvent(QKeyEvent *event);
+    void keyPressEvent(QKeyEvent *event) override;
     //void resizeEvent(QResizeEvent * event);
-    void mouseDoubleClickEvent(QMouseEvent *event);
-    void dropEvent(QDropEvent *event);
-    void dragEnterEvent(QDragEnterEvent *event);
+    void mouseDoubleClickEvent(QMouseEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
+    void dragEnterEvent(QDragEnterEvent *event) override;
 
     QSettings *settings;
 
@@ -178,11 +178,11 @@ signals:
     void closed();
 
 protected:
-    virtual void closeEvent(QCloseEvent *event);
+    void closeEvent(QCloseEvent *event) override;
     void sendComic();
 
 public:
     MainWindowViewer();
-    ~MainWindowViewer();
+    ~MainWindowViewer() override;
 };
 #endif
diff --git a/YACReader/notifications_label_widget.h b/YACReader/notifications_label_widget.h
index 391b0934..9d7f9f4c 100644
--- a/YACReader/notifications_label_widget.h
+++ b/YACReader/notifications_label_widget.h
@@ -16,7 +16,7 @@ private:
     QGraphicsOpacityEffect *effect;
 
 protected:
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 
 public:
     NotificationsLabelWidget(QWidget *parent);
diff --git a/YACReader/options_dialog.h b/YACReader/options_dialog.h
index 7f19f7ee..32404a50 100644
--- a/YACReader/options_dialog.h
+++ b/YACReader/options_dialog.h
@@ -48,8 +48,8 @@ private:
     YACReaderSpinSliderWidget *gammaS;
 
 public slots:
-    void saveOptions();
-    void restoreOptions(QSettings *settings);
+    void saveOptions() override;
+    void restoreOptions(QSettings *settings) override;
     void findFolder();
     void updateColor(const QColor &color);
     //void fitToWidthRatio(int value);
diff --git a/YACReader/page_label_widget.h b/YACReader/page_label_widget.h
index bc19fc78..35b0c94e 100644
--- a/YACReader/page_label_widget.h
+++ b/YACReader/page_label_widget.h
@@ -14,7 +14,7 @@ private:
     QPropertyAnimation *animation;
 
 protected:
-    virtual void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 
 public:
     PageLabelWidget(QWidget *parent);
diff --git a/YACReader/render.h b/YACReader/render.h
index af65629c..e852cd64 100644
--- a/YACReader/render.h
+++ b/YACReader/render.h
@@ -37,7 +37,7 @@ public:
     enum NeighborghoodSize { SMALL = 9,
                              LARGE = 25 };
     MeanNoiseReductionFilter(enum NeighborghoodSize ns = SMALL);
-    virtual QImage setFilter(const QImage &image);
+    QImage setFilter(const QImage &image) override;
 
 private:
     enum NeighborghoodSize neighborghoodSize;
@@ -49,7 +49,7 @@ public:
     enum NeighborghoodSize { SMALL = 9,
                              LARGE = 25 };
     MedianNoiseReductionFilter(enum NeighborghoodSize ns = SMALL);
-    virtual QImage setFilter(const QImage &image);
+    QImage setFilter(const QImage &image) override;
 
 private:
     enum NeighborghoodSize neighborghoodSize;
@@ -59,21 +59,21 @@ class BrightnessFilter : public ImageFilter
 {
 public:
     BrightnessFilter(int l = -1);
-    virtual QImage setFilter(const QImage &image);
+    QImage setFilter(const QImage &image) override;
 };
 
 class ContrastFilter : public ImageFilter
 {
 public:
     ContrastFilter(int l = -1);
-    virtual QImage setFilter(const QImage &image);
+    QImage setFilter(const QImage &image) override;
 };
 
 class GammaFilter : public ImageFilter
 {
 public:
     GammaFilter(int l = -1);
-    virtual QImage setFilter(const QImage &image);
+    QImage setFilter(const QImage &image) override;
 };
 
 //-----------------------------------------------------------------------------
@@ -98,7 +98,7 @@ private:
     QImage *page;
     unsigned int degrees;
     QVector<ImageFilter *> filters;
-    void run();
+    void run() override;
     Render *render;
 signals:
     void pageReady(int);
@@ -132,7 +132,7 @@ class Render : public QObject
     Q_OBJECT
 public:
     Render();
-    ~Render();
+    ~Render() override;
 
 public slots:
     void render();
diff --git a/YACReader/translator.h b/YACReader/translator.h
index a9e45a12..0ef17951 100644
--- a/YACReader/translator.h
+++ b/YACReader/translator.h
@@ -26,7 +26,7 @@ class YACReaderTranslator : public QWidget
     Q_OBJECT
 public:
     YACReaderTranslator(QWidget *parent = nullptr);
-    ~YACReaderTranslator();
+    ~YACReaderTranslator() override;
 
 public slots:
     void play();
@@ -39,9 +39,9 @@ protected slots:
     void clear();
 
 protected:
-    void mousePressEvent(QMouseEvent *event);
-    void mouseReleaseEvent(QMouseEvent *event);
-    void mouseMoveEvent(QMouseEvent *event);
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
     void hideResults();
 
     void populateCombos();
@@ -80,7 +80,7 @@ private:
     QString text;
     QString from;
     QString to;
-    void run();
+    void run() override;
 };
 
 class TextToSpeachLoader : public QThread
@@ -96,6 +96,6 @@ signals:
 private:
     QString text;
     QString language;
-    void run();
+    void run() override;
 };
 #endif
diff --git a/YACReader/viewer.h b/YACReader/viewer.h
index f5a150eb..5ea6834b 100644
--- a/YACReader/viewer.h
+++ b/YACReader/viewer.h
@@ -87,8 +87,8 @@ public slots:
     void translatorSwitch();
     void animateShowTranslator();
     void animateHideTranslator();
-    virtual void mousePressEvent(QMouseEvent *event);
-    virtual void mouseReleaseEvent(QMouseEvent *event);
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
     void updateBackgroundColor(const QColor &color);
     void updateConfig(QSettings *settings);
     void showMessageErrorOpening();
@@ -155,10 +155,10 @@ private:
     bool restoreMagnifyingGlass;
 
     //! Manejadores de evento:
-    void keyPressEvent(QKeyEvent *event);
-    void resizeEvent(QResizeEvent *event);
-    void wheelEvent(QWheelEvent *event);
-    void mouseMoveEvent(QMouseEvent *event);
+    void keyPressEvent(QKeyEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
+    void wheelEvent(QWheelEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
 
     //!ZigzagScroll
     enum scrollDirection { UP,
diff --git a/YACReader/width_slider.h b/YACReader/width_slider.h
index f7a019cb..3a7c2570 100644
--- a/YACReader/width_slider.h
+++ b/YACReader/width_slider.h
@@ -18,8 +18,8 @@ public:
     void show();
 
 protected:
-    virtual void focusOutEvent(QFocusEvent *event);
-    virtual void paintEvent(QPaintEvent *);
+    void focusOutEvent(QFocusEvent *event) override;
+    void paintEvent(QPaintEvent *) override;
 
 public slots:
     void updateText(int value);
diff --git a/YACReader/yacreader_local_client.h b/YACReader/yacreader_local_client.h
index 3d06c215..f3509e66 100644
--- a/YACReader/yacreader_local_client.h
+++ b/YACReader/yacreader_local_client.h
@@ -11,7 +11,7 @@ class YACReaderLocalClient : public QObject
     Q_OBJECT
 public:
     explicit YACReaderLocalClient(QObject *parent = nullptr);
-    ~YACReaderLocalClient();
+    ~YACReaderLocalClient() override;
 signals:
     void finished();
 public slots:
diff --git a/YACReaderLibrary/add_label_dialog.h b/YACReaderLibrary/add_label_dialog.h
index 61d7cf56..f18351be 100644
--- a/YACReaderLibrary/add_label_dialog.h
+++ b/YACReaderLibrary/add_label_dialog.h
@@ -15,7 +15,7 @@ public:
 signals:
 
 public slots:
-    int exec();
+    int exec() override;
 
 protected slots:
     void validateName(const QString &name);
diff --git a/YACReaderLibrary/bundle_creator.h b/YACReaderLibrary/bundle_creator.h
index a5c68463..a5ed56f6 100644
--- a/YACReaderLibrary/bundle_creator.h
+++ b/YACReaderLibrary/bundle_creator.h
@@ -8,7 +8,7 @@ class BundleCreator : public QObject
     Q_OBJECT
 public:
     BundleCreator(void);
-    ~BundleCreator(void);
+    ~BundleCreator(void) override;
 };
 
 #endif
\ No newline at end of file
diff --git a/YACReaderLibrary/classic_comics_view.h b/YACReaderLibrary/classic_comics_view.h
index b18bb15c..a5d51f14 100644
--- a/YACReaderLibrary/classic_comics_view.h
+++ b/YACReaderLibrary/classic_comics_view.h
@@ -20,21 +20,21 @@ class ClassicComicsView : public ComicsView
     Q_OBJECT
 public:
     ClassicComicsView(QWidget *parent = 0);
-    void setToolBar(QToolBar *toolBar);
-    void setModel(ComicModel *model);
+    void setToolBar(QToolBar *toolBar) override;
+    void setModel(ComicModel *model) override;
 
-    QModelIndex currentIndex();
-    QItemSelectionModel *selectionModel();
-    void scrollTo(const QModelIndex &mi, QAbstractItemView::ScrollHint hint);
-    void toFullScreen();
-    void toNormal();
-    void updateConfig(QSettings *settings);
-    void enableFilterMode(bool enabled);
-    void selectIndex(int index);
-    void updateCurrentComicView();
+    QModelIndex currentIndex() override;
+    QItemSelectionModel *selectionModel() override;
+    void scrollTo(const QModelIndex &mi, QAbstractItemView::ScrollHint hint) override;
+    void toFullScreen() override;
+    void toNormal() override;
+    void updateConfig(QSettings *settings) override;
+    void enableFilterMode(bool enabled) override;
+    void selectIndex(int index) override;
+    void updateCurrentComicView() override;
 
 public slots:
-    void setCurrentIndex(const QModelIndex &index);
+    void setCurrentIndex(const QModelIndex &index) override;
     void centerComicFlow(const QModelIndex &mi);
     void updateTableView(int i);
     void saveTableHeadersStatus();
@@ -42,8 +42,8 @@ public slots:
     void applyModelChanges(const QModelIndex &topLeft, const QModelIndex &bottomRight, const QVector<int> &roles);
     void removeItemsFromFlow(const QModelIndex &parent, int from, int to);
     //ComicsView
-    void setShowMarks(bool show);
-    void selectAll();
+    void setShowMarks(bool show) override;
+    void selectAll() override;
     void selectedComicForOpening(const QModelIndex &mi);
 
 protected slots:
@@ -60,7 +60,7 @@ private:
     QSplitter *sVertical;
     ComicFlowWidget *comicFlow;
     QSettings *settings;
-    void closeEvent(QCloseEvent *event);
+    void closeEvent(QCloseEvent *event) override;
     QAction *hideFlowViewAction;
 
     QStackedWidget *stack;
diff --git a/YACReaderLibrary/comic_flow.h b/YACReaderLibrary/comic_flow.h
index 597a1e95..78b91582 100644
--- a/YACReaderLibrary/comic_flow.h
+++ b/YACReaderLibrary/comic_flow.h
@@ -22,7 +22,7 @@ public:
 
     void setImagePaths(const QStringList &paths);
     //bool eventFilter(QObject *target, QEvent *event);
-    void keyPressEvent(QKeyEvent *event);
+    void keyPressEvent(QKeyEvent *event) override;
     void removeSlide(int cover);
     void resortCovers(QList<int> newOrder);
 
@@ -48,7 +48,7 @@ class ImageLoader : public QThread
 {
 public:
     ImageLoader();
-    ~ImageLoader();
+    ~ImageLoader() override;
     // returns FALSE if worker is still busy and can't take the task
     bool busy() const;
     void generate(int index, const QString &fileName, QSize size);
@@ -59,7 +59,7 @@ public:
     QImage result();
 
 protected:
-    void run();
+    void run() override;
 
 private:
     QMutex mutex;
diff --git a/YACReaderLibrary/comic_flow_widget.h b/YACReaderLibrary/comic_flow_widget.h
index cfb214ad..69cdf291 100644
--- a/YACReaderLibrary/comic_flow_widget.h
+++ b/YACReaderLibrary/comic_flow_widget.h
@@ -46,32 +46,32 @@ private:
 public:
     ComicFlowWidgetSW(QWidget *parent = nullptr);
 
-    void setShowMarks(bool value);
-    void setMarks(QVector<YACReaderComicReadStatus> marks);
-    void setMarkImage(QImage &image);
-    void markSlide(int index, YACReaderComicReadStatus status);
-    void unmarkSlide(int index);
-    void setSlideSize(QSize size);
-    void clear();
-    void setImagePaths(QStringList paths);
-    void setCenterIndex(int index);
-    void showSlide(int index);
+    void setShowMarks(bool value) override;
+    void setMarks(QVector<YACReaderComicReadStatus> marks) override;
+    void setMarkImage(QImage &image) override;
+    void markSlide(int index, YACReaderComicReadStatus status) override;
+    void unmarkSlide(int index) override;
+    void setSlideSize(QSize size) override;
+    void clear() override;
+    void setImagePaths(QStringList paths) override;
+    void setCenterIndex(int index) override;
+    void showSlide(int index) override;
     int centerIndex();
-    void updateMarks();
-    void setFlowType(FlowType flowType);
-    void render();
-    void updateConfig(QSettings *settings);
-    void remove(int cover);
-    void resortCovers(QList<int> newOrder);
+    void updateMarks() override;
+    void setFlowType(FlowType flowType) override;
+    void render() override;
+    void updateConfig(QSettings *settings) override;
+    void remove(int cover) override;
+    void resortCovers(QList<int> newOrder) override;
 
 protected:
-    void keyPressEvent(QKeyEvent *event);
-    void paintEvent(QPaintEvent *event);
-    void mousePressEvent(QMouseEvent *event);
-    void resizeEvent(QResizeEvent *event);
-    void mouseDoubleClickEvent(QMouseEvent *event);
+    void keyPressEvent(QKeyEvent *event) override;
+    void paintEvent(QPaintEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
+    void mouseDoubleClickEvent(QMouseEvent *event) override;
     QSize minimumSizeHint() const;
-    QSize sizeHint() const;
+    QSize sizeHint() const override;
     QSize slideSizeW;
     QSize slideSizeF;
 };
@@ -86,23 +86,23 @@ private:
 public:
     ComicFlowWidgetGL(QWidget *parent = nullptr);
 
-    void setShowMarks(bool value);
-    void setMarks(QVector<YACReaderComicReadStatus> marks);
-    void setMarkImage(QImage &image);
-    void markSlide(int index, YACReaderComicReadStatus status);
-    void unmarkSlide(int index);
-    void setSlideSize(QSize size);
-    void clear();
-    void setImagePaths(QStringList paths);
-    void setCenterIndex(int index);
-    void showSlide(int index);
+    void setShowMarks(bool value) override;
+    void setMarks(QVector<YACReaderComicReadStatus> marks) override;
+    void setMarkImage(QImage &image) override;
+    void markSlide(int index, YACReaderComicReadStatus status) override;
+    void unmarkSlide(int index) override;
+    void setSlideSize(QSize size) override;
+    void clear() override;
+    void setImagePaths(QStringList paths) override;
+    void setCenterIndex(int index) override;
+    void showSlide(int index) override;
     int centerIndex();
-    void updateMarks();
-    void setFlowType(FlowType flowType);
-    void render();
-    void updateConfig(QSettings *settings);
-    void remove(int cover);
-    void resortCovers(QList<int> newOrder);
+    void updateMarks() override;
+    void setFlowType(FlowType flowType) override;
+    void render() override;
+    void updateConfig(QSettings *settings) override;
+    void remove(int cover) override;
+    void resortCovers(QList<int> newOrder) override;
     //public slots:
     //	void setCF_RX(int value);
     //	//the Y Rotation of the Coverflow
@@ -122,13 +122,13 @@ public:
     //	void setY_Distance(int value);
     //	void setPreset(const Preset & p);
 protected:
-    void keyPressEvent(QKeyEvent *event);
-    void paintEvent(QPaintEvent *event);
-    void mousePressEvent(QMouseEvent *event);
-    void resizeEvent(QResizeEvent *event);
-    void mouseDoubleClickEvent(QMouseEvent *event);
-    QSize minimumSizeHint() const;
-    QSize sizeHint() const;
+    void keyPressEvent(QKeyEvent *event) override;
+    void paintEvent(QPaintEvent *event) override;
+    void mousePressEvent(QMouseEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
+    void mouseDoubleClickEvent(QMouseEvent *event) override;
+    QSize minimumSizeHint() const override;
+    QSize sizeHint() const override;
 };
 #endif
 #endif
diff --git a/YACReaderLibrary/comic_vine/api_key_dialog.h b/YACReaderLibrary/comic_vine/api_key_dialog.h
index 15a809de..f4ba517b 100644
--- a/YACReaderLibrary/comic_vine/api_key_dialog.h
+++ b/YACReaderLibrary/comic_vine/api_key_dialog.h
@@ -12,7 +12,7 @@ class ApiKeyDialog : public QDialog
     Q_OBJECT
 public:
     explicit ApiKeyDialog(QWidget *parent = nullptr);
-    ~ApiKeyDialog();
+    ~ApiKeyDialog() override;
 signals:
 
 public slots:
diff --git a/YACReaderLibrary/comic_vine/comic_vine_client.h b/YACReaderLibrary/comic_vine/comic_vine_client.h
index 349f89b7..5cb858af 100644
--- a/YACReaderLibrary/comic_vine/comic_vine_client.h
+++ b/YACReaderLibrary/comic_vine/comic_vine_client.h
@@ -11,7 +11,7 @@ class ComicVineClient : public QObject
     Q_OBJECT
 public:
     explicit ComicVineClient(QObject *parent = nullptr);
-    ~ComicVineClient();
+    ~ComicVineClient() override;
 
 signals:
     void searchResult(QString);
diff --git a/YACReaderLibrary/comic_vine/comic_vine_dialog.h b/YACReaderLibrary/comic_vine/comic_vine_dialog.h
index fb01762d..3a0fd4c6 100644
--- a/YACReaderLibrary/comic_vine/comic_vine_dialog.h
+++ b/YACReaderLibrary/comic_vine/comic_vine_dialog.h
@@ -30,8 +30,8 @@ public:
     QString databasePath;
     QString basePath;
     void setComics(const QList<ComicDB> &comics);
-    QSize sizeHint() const;
-    QSize minimumSizeHint() const;
+    QSize sizeHint() const override;
+    QSize minimumSizeHint() const override;
 
 signals:
 
diff --git a/YACReaderLibrary/comic_vine/model/local_comic_list_model.h b/YACReaderLibrary/comic_vine/model/local_comic_list_model.h
index 20fb05b9..d3835f0b 100644
--- a/YACReaderLibrary/comic_vine/model/local_comic_list_model.h
+++ b/YACReaderLibrary/comic_vine/model/local_comic_list_model.h
@@ -14,14 +14,14 @@ public:
     void load(QList<ComicDB> &comics);
 
     //QAbstractItemModel methods
-    QModelIndex parent(const QModelIndex &index) const;
-    int rowCount(const QModelIndex &parent = QModelIndex()) const;
-    int columnCount(const QModelIndex &parent) const;
+    QModelIndex parent(const QModelIndex &index) const override;
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    int columnCount(const QModelIndex &parent) const override;
     QVariant data(const QModelIndex &index, int role) const;
-    Qt::ItemFlags flags(const QModelIndex &index) const;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
     QVariant headerData(int section, Qt::Orientation orientation,
-                        int role = Qt::DisplayRole) const;
-    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
+                        int role = Qt::DisplayRole) const override;
+    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override;
     QList<ComicDB> getData();
 
     void removeComics(const QList<QModelIndex> &selectedIndexes);
diff --git a/YACReaderLibrary/comic_vine/model/volume_comics_model.h b/YACReaderLibrary/comic_vine/model/volume_comics_model.h
index 7994ad3f..3e893ba9 100644
--- a/YACReaderLibrary/comic_vine/model/volume_comics_model.h
+++ b/YACReaderLibrary/comic_vine/model/volume_comics_model.h
@@ -8,17 +8,17 @@ class VolumeComicsModel : public JSONModel
     Q_OBJECT
 public:
     explicit VolumeComicsModel(QObject *parent = nullptr);
-    void load(const QString &json);
+    void load(const QString &json) override;
     //void load(const QStringList & jsonList);
 
-    QModelIndex parent(const QModelIndex &index) const;
-    int rowCount(const QModelIndex &parent = QModelIndex()) const;
-    int columnCount(const QModelIndex &parent) const;
+    QModelIndex parent(const QModelIndex &index) const override;
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    int columnCount(const QModelIndex &parent) const override;
     QVariant data(const QModelIndex &index, int role) const;
     Qt::ItemFlags flags(const QModelIndex &index) const;
     QVariant headerData(int section, Qt::Orientation orientation,
-                        int role = Qt::DisplayRole) const;
-    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
+                        int role = Qt::DisplayRole) const override;
+    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override;
 signals:
 
 public slots:
diff --git a/YACReaderLibrary/comic_vine/model/volumes_model.h b/YACReaderLibrary/comic_vine/model/volumes_model.h
index 6d76e12c..654e4fdc 100644
--- a/YACReaderLibrary/comic_vine/model/volumes_model.h
+++ b/YACReaderLibrary/comic_vine/model/volumes_model.h
@@ -10,17 +10,17 @@ public:
     explicit VolumesModel(QObject *parent = nullptr);
     virtual ~VolumesModel();
     //receive a valid json with a list of volumes
-    void load(const QString &json);
+    void load(const QString &json) override;
 
     //QAbstractItemModel methods
-    QModelIndex parent(const QModelIndex &index) const;
-    int rowCount(const QModelIndex &parent = QModelIndex()) const;
-    int columnCount(const QModelIndex &parent) const;
-    QVariant data(const QModelIndex &index, int role) const;
+    QModelIndex parent(const QModelIndex &index) const override;
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    int columnCount(const QModelIndex &parent) const override;
+    QVariant data(const QModelIndex &index, int role) const override;
     Qt::ItemFlags flags(const QModelIndex &index) const;
     QVariant headerData(int section, Qt::Orientation orientation,
                         int role = Qt::DisplayRole) const;
-    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
+    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override;
 
     QString getVolumeId(const QModelIndex &index) const;
     int getNumIssues(const QModelIndex &index) const;
diff --git a/YACReaderLibrary/comic_vine/scraper_lineedit.h b/YACReaderLibrary/comic_vine/scraper_lineedit.h
index 8a10567a..8de8b45d 100644
--- a/YACReaderLibrary/comic_vine/scraper_lineedit.h
+++ b/YACReaderLibrary/comic_vine/scraper_lineedit.h
@@ -12,7 +12,7 @@ public:
     ScraperLineEdit(const QString &title, QWidget *widget = nullptr);
 
 protected:
-    void resizeEvent(QResizeEvent *);
+    void resizeEvent(QResizeEvent *) override;
 
 private:
     QLabel *titleLabel;
diff --git a/YACReaderLibrary/comic_vine/select_comic.h b/YACReaderLibrary/comic_vine/select_comic.h
index eb824ceb..5a834378 100644
--- a/YACReaderLibrary/comic_vine/select_comic.h
+++ b/YACReaderLibrary/comic_vine/select_comic.h
@@ -15,7 +15,7 @@ class SelectComic : public ScraperSelector
     Q_OBJECT
 public:
     SelectComic(QWidget *parent = nullptr);
-    void load(const QString &json, const QString &searchString);
+    void load(const QString &json, const QString &searchString) override;
     virtual ~SelectComic();
 
 public slots:
diff --git a/YACReaderLibrary/comic_vine/select_volume.h b/YACReaderLibrary/comic_vine/select_volume.h
index 983a80d2..8bdbe625 100644
--- a/YACReaderLibrary/comic_vine/select_volume.h
+++ b/YACReaderLibrary/comic_vine/select_volume.h
@@ -17,7 +17,7 @@ class SelectVolume : public ScraperSelector
     Q_OBJECT
 public:
     SelectVolume(QWidget *parent = nullptr);
-    void load(const QString &json, const QString &searchString);
+    void load(const QString &json, const QString &searchString) override;
     virtual ~SelectVolume();
 
 public slots:
diff --git a/YACReaderLibrary/comic_vine/sort_volume_comics.h b/YACReaderLibrary/comic_vine/sort_volume_comics.h
index 2134f494..8b09269b 100644
--- a/YACReaderLibrary/comic_vine/sort_volume_comics.h
+++ b/YACReaderLibrary/comic_vine/sort_volume_comics.h
@@ -41,7 +41,7 @@ public:
     virtual ~ScrapperToolButton() {}
 
 protected:
-    void paintEvent(QPaintEvent *e)
+    void paintEvent(QPaintEvent *e) override
     {
         QPainter p(this);
 
diff --git a/YACReaderLibrary/comics_view.h b/YACReaderLibrary/comics_view.h
index d594529d..54e49ee6 100644
--- a/YACReaderLibrary/comics_view.h
+++ b/YACReaderLibrary/comics_view.h
@@ -52,8 +52,8 @@ protected:
     ComicModel *model;
 
     //Drop to import
-    void dragEnterEvent(QDragEnterEvent *event);
-    void dropEvent(QDropEvent *event);
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
 
     QQuickWidget *view;
     QWidget *container;
diff --git a/YACReaderLibrary/comics_view_transition.h b/YACReaderLibrary/comics_view_transition.h
index c67e658e..7f2cc7b0 100644
--- a/YACReaderLibrary/comics_view_transition.h
+++ b/YACReaderLibrary/comics_view_transition.h
@@ -11,7 +11,7 @@ public:
     QSize sizeHint();
 
 protected:
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 };
 
 #endif // COMICS_VIEW_TRANSITION_H
diff --git a/YACReaderLibrary/db/comic_item.h b/YACReaderLibrary/db/comic_item.h
index 0e6c8bc9..4745abd6 100644
--- a/YACReaderLibrary/db/comic_item.h
+++ b/YACReaderLibrary/db/comic_item.h
@@ -10,7 +10,7 @@ class ComicItem : public QObject
     Q_OBJECT
 public:
     ComicItem(const QList<QVariant> &data);
-    ~ComicItem();
+    ~ComicItem() override;
     int columnCount() const;
     QVariant data(int column) const;
     void setData(int column, const QVariant &value);
diff --git a/YACReaderLibrary/db/comic_model.h b/YACReaderLibrary/db/comic_model.h
index dcd91c1d..d3ee01e0 100644
--- a/YACReaderLibrary/db/comic_model.h
+++ b/YACReaderLibrary/db/comic_model.h
@@ -67,19 +67,19 @@ public:
 public:
     ComicModel(QObject *parent = 0);
     ComicModel(QSqlQuery &sqlquery, QObject *parent = 0);
-    ~ComicModel();
+    ~ComicModel() override;
 
-    QVariant data(const QModelIndex &index, int role) const;
-    Qt::ItemFlags flags(const QModelIndex &index) const;
+    QVariant data(const QModelIndex &index, int role) const override;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
     QVariant headerData(int section, Qt::Orientation orientation,
-                        int role = Qt::DisplayRole) const;
+                        int role = Qt::DisplayRole) const override;
     QModelIndex index(int row, int column,
-                      const QModelIndex &parent = QModelIndex()) const;
-    QModelIndex parent(const QModelIndex &index) const;
+                      const QModelIndex &parent = QModelIndex()) const override;
+    QModelIndex parent(const QModelIndex &index) const override;
     int rowCount(const QModelIndex &parent = QModelIndex()) const;
-    int columnCount(const QModelIndex &parent = QModelIndex()) const;
-    bool canDropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const;
-    bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent);
+    int columnCount(const QModelIndex &parent = QModelIndex()) const override;
+    bool canDropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const override;
+    bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;
     bool canBeResorted();
     QMimeData *mimeData(const QModelIndexList &indexes) const;
     QStringList mimeTypes() const;
@@ -130,7 +130,7 @@ public:
 
     ComicModel::Mode getMode() { return mode; }
 
-    QHash<int, QByteArray> roleNames() const;
+    QHash<int, QByteArray> roleNames() const override;
 
 public slots:
     void remove(int row);
diff --git a/YACReaderLibrary/db/data_base_management.h b/YACReaderLibrary/db/data_base_management.h
index b3394059..3eac4a40 100644
--- a/YACReaderLibrary/db/data_base_management.h
+++ b/YACReaderLibrary/db/data_base_management.h
@@ -15,7 +15,7 @@ public:
     void exportComicsInfo(QSqlDatabase &source, QSqlDatabase &dest);
 
 private:
-    void run();
+    void run() override;
 };
 
 class ComicsInfoImporter : public QThread
@@ -26,7 +26,7 @@ public:
     void importComicsInfo(QSqlDatabase &source, QSqlDatabase &dest);
 
 private:
-    void run();
+    void run() override;
 };
 
 class DataBaseManagement : public QObject
diff --git a/YACReaderLibrary/db/folder_model.h b/YACReaderLibrary/db/folder_model.h
index 92b4cc20..ecac40ee 100644
--- a/YACReaderLibrary/db/folder_model.h
+++ b/YACReaderLibrary/db/folder_model.h
@@ -57,14 +57,14 @@ class FolderModelProxy : public QSortFilterProxyModel
     Q_OBJECT
 public:
     explicit FolderModelProxy(QObject *parent = 0);
-    ~FolderModelProxy();
+    ~FolderModelProxy() override;
 
     void setFilter(const YACReader::SearchModifiers modifier, QString filter, bool includeComics);
     void setupFilteredModelData(QSqlQuery &sqlquery, FolderItem *parent);
     void setupFilteredModelData();
     void clear();
 
-    bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const;
+    bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const override;
 
 protected:
     FolderItem *rootItem;
@@ -87,18 +87,18 @@ class FolderModel : public QAbstractItemModel
 public:
     FolderModel(QObject *parent = 0);
     FolderModel(QSqlQuery &sqlquery, QObject *parent = 0);
-    ~FolderModel();
+    ~FolderModel() override;
 
     //QAbstractItemModel methods
-    QVariant data(const QModelIndex &index, int role) const;
-    Qt::ItemFlags flags(const QModelIndex &index) const;
+    QVariant data(const QModelIndex &index, int role) const override;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
     QVariant headerData(int section, Qt::Orientation orientation,
-                        int role = Qt::DisplayRole) const;
+                        int role = Qt::DisplayRole) const override;
     QModelIndex index(int row, int column,
-                      const QModelIndex &parent = QModelIndex()) const;
-    QModelIndex parent(const QModelIndex &index) const;
-    int rowCount(const QModelIndex &parent = QModelIndex()) const;
-    int columnCount(const QModelIndex &parent = QModelIndex()) const;
+                      const QModelIndex &parent = QModelIndex()) const override;
+    QModelIndex parent(const QModelIndex &index) const override;
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    int columnCount(const QModelIndex &parent = QModelIndex()) const override;
 
     //Convenience methods
     void setupModelData(QString path);
diff --git a/YACReaderLibrary/db/reading_list_item.h b/YACReaderLibrary/db/reading_list_item.h
index 752ea0bb..8745c212 100644
--- a/YACReaderLibrary/db/reading_list_item.h
+++ b/YACReaderLibrary/db/reading_list_item.h
@@ -26,7 +26,7 @@ class SpecialListItem : public ListItem
 {
 public:
     SpecialListItem(const QList<QVariant> &data);
-    QIcon getIcon() const;
+    QIcon getIcon() const override;
     ReadingListModel::TypeSpecialList getType() const;
 
 private:
@@ -42,11 +42,11 @@ class LabelItem : public ListItem
 {
 public:
     LabelItem(const QList<QVariant> &data);
-    QIcon getIcon() const;
+    QIcon getIcon() const override;
     YACReader::LabelColors colorid() const;
     QString name() const;
     void setName(const QString &name);
-    qulonglong getId() const;
+    qulonglong getId() const override;
 
 private:
     enum DataIndexes {
@@ -63,7 +63,7 @@ class ReadingListItem : public ListItem
 {
 public:
     ReadingListItem(const QList<QVariant> &data, ReadingListItem *parent = nullptr);
-    QIcon getIcon() const;
+    QIcon getIcon() const override;
     ReadingListItem *parent;
     int childCount() const;
     int row() const;
@@ -71,7 +71,7 @@ public:
     void appendChild(ReadingListItem *item);
     void appendChild(ReadingListItem *item, int pos);
     void removeChild(ReadingListItem *item);
-    qulonglong getId() const;
+    qulonglong getId() const override;
     QString name() const;
     void setName(const QString &name);
     int getOrdering() const;
@@ -96,7 +96,7 @@ class ReadingListSeparatorItem : public ListItem
 {
 public:
     ReadingListSeparatorItem();
-    QIcon getIcon() const;
+    QIcon getIcon() const override;
 };
 
 #endif // READING_LIST_ITEM_H
diff --git a/YACReaderLibrary/db/reading_list_model.h b/YACReaderLibrary/db/reading_list_model.h
index 41efa0eb..5a22a02a 100644
--- a/YACReaderLibrary/db/reading_list_model.h
+++ b/YACReaderLibrary/db/reading_list_model.h
@@ -29,18 +29,18 @@ public:
     explicit ReadingListModel(QObject *parent = 0);
 
     //QAbstractItemModel methods
-    int rowCount(const QModelIndex &parent = QModelIndex()) const;
-    int columnCount(const QModelIndex &parent = QModelIndex()) const;
-    QVariant data(const QModelIndex &index, int role) const;
-    Qt::ItemFlags flags(const QModelIndex &index) const;
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    int columnCount(const QModelIndex &parent = QModelIndex()) const override;
+    QVariant data(const QModelIndex &index, int role) const override;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
     QVariant headerData(int section, Qt::Orientation orientation,
-                        int role = Qt::DisplayRole) const;
+                        int role = Qt::DisplayRole) const override;
     QModelIndex index(int row, int column,
-                      const QModelIndex &parent = QModelIndex()) const;
-    QModelIndex parent(const QModelIndex &index) const;
-    bool canDropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const;
-    bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent);
-    QMimeData *mimeData(const QModelIndexList &indexes) const;
+                      const QModelIndex &parent = QModelIndex()) const override;
+    QModelIndex parent(const QModelIndex &index) const override;
+    bool canDropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) const override;
+    bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;
+    QMimeData *mimeData(const QModelIndexList &indexes) const override;
 
     //Convenience methods
     void setupReadingListsData(QString path);
diff --git a/YACReaderLibrary/empty_container_info.h b/YACReaderLibrary/empty_container_info.h
index 93dfceea..1a1b3632 100644
--- a/YACReaderLibrary/empty_container_info.h
+++ b/YACReaderLibrary/empty_container_info.h
@@ -16,7 +16,7 @@ signals:
 public slots:
 
 protected:
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
 
     QLabel *iconLabel;
     QLabel *titleLabel;
diff --git a/YACReaderLibrary/empty_folder_widget.cpp b/YACReaderLibrary/empty_folder_widget.cpp
index dddb8315..90204d4e 100644
--- a/YACReaderLibrary/empty_folder_widget.cpp
+++ b/YACReaderLibrary/empty_folder_widget.cpp
@@ -38,7 +38,7 @@ public:
     virtual ~ListviewDelegate() {}
 
     void paint(QPainter *painter, const QStyleOptionViewItem &option,
-               const QModelIndex &index) const
+               const QModelIndex &index) const override
     {
         painter->save();
 
@@ -57,7 +57,7 @@ public:
     }
 
     QSize sizeHint(const QStyleOptionViewItem &option,
-                   const QModelIndex &index) const
+                   const QModelIndex &index) const override
     {
         QFontMetrics fm(option.font);
         QString text = qvariant_cast<QString>(index.data(Qt::DisplayRole));
diff --git a/YACReaderLibrary/empty_folder_widget.h b/YACReaderLibrary/empty_folder_widget.h
index 2f416b6b..e052bc4c 100644
--- a/YACReaderLibrary/empty_folder_widget.h
+++ b/YACReaderLibrary/empty_folder_widget.h
@@ -27,8 +27,8 @@ protected:
     QString backgroundColor;
 
     //Drop to import
-    void dragEnterEvent(QDragEnterEvent *event);
-    void dropEvent(QDropEvent *event);
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
 };
 
 #endif // EMPTY_FOLDER_WIDGET_H
diff --git a/YACReaderLibrary/export_comics_info_dialog.h b/YACReaderLibrary/export_comics_info_dialog.h
index 7c1cbf7d..f5a8e82f 100644
--- a/YACReaderLibrary/export_comics_info_dialog.h
+++ b/YACReaderLibrary/export_comics_info_dialog.h
@@ -12,7 +12,7 @@ class ExportComicsInfoDialog : public QDialog
 
 public:
     ExportComicsInfoDialog(QWidget *parent = nullptr);
-    ~ExportComicsInfoDialog();
+    ~ExportComicsInfoDialog() override;
     QString source;
 
 public slots:
diff --git a/YACReaderLibrary/grid_comics_view.h b/YACReaderLibrary/grid_comics_view.h
index 30879c5e..73e0e2b6 100644
--- a/YACReaderLibrary/grid_comics_view.h
+++ b/YACReaderLibrary/grid_comics_view.h
@@ -21,25 +21,25 @@ class GridComicsView : public ComicsView
 public:
     explicit GridComicsView(QWidget *parent = 0);
     virtual ~GridComicsView();
-    void setToolBar(QToolBar *toolBar);
-    void setModel(ComicModel *model);
-    void setCurrentIndex(const QModelIndex &index);
-    QModelIndex currentIndex();
-    QItemSelectionModel *selectionModel();
-    void scrollTo(const QModelIndex &mi, QAbstractItemView::ScrollHint hint);
-    void toFullScreen();
-    void toNormal();
-    void updateConfig(QSettings *settings);
-    void enableFilterMode(bool enabled);
+    void setToolBar(QToolBar *toolBar) override;
+    void setModel(ComicModel *model) override;
+    void setCurrentIndex(const QModelIndex &index) override;
+    QModelIndex currentIndex() override;
+    QItemSelectionModel *selectionModel() override;
+    void scrollTo(const QModelIndex &mi, QAbstractItemView::ScrollHint hint) override;
+    void toFullScreen() override;
+    void toNormal() override;
+    void updateConfig(QSettings *settings) override;
+    void enableFilterMode(bool enabled) override;
     QSize sizeHint();
     QByteArray getMimeDataFromSelection();
-    void updateCurrentComicView();
+    void updateCurrentComicView() override;
 
 public slots:
     //ComicsView
-    void setShowMarks(bool show);
-    void selectAll();
-    void selectIndex(int index);
+    void setShowMarks(bool show) override;
+    void selectAll() override;
+    void selectIndex(int index) override;
     void triggerOpenCurrentComic();
 
     void updateBackgroundConfig();
@@ -93,7 +93,7 @@ private:
     ComicDB currentComic;
 
     bool dummy;
-    void closeEvent(QCloseEvent *event);
+    void closeEvent(QCloseEvent *event) override;
     void createCoverSizeSliderWidget();
 };
 
diff --git a/YACReaderLibrary/import_comics_info_dialog.h b/YACReaderLibrary/import_comics_info_dialog.h
index 5deeea0d..01ea022f 100644
--- a/YACReaderLibrary/import_comics_info_dialog.h
+++ b/YACReaderLibrary/import_comics_info_dialog.h
@@ -16,7 +16,7 @@ public:
     QString dest;
 
 private:
-    void run();
+    void run() override;
 };
 
 class ImportComicsInfoDialog : public QDialog
diff --git a/YACReaderLibrary/import_library_dialog.h b/YACReaderLibrary/import_library_dialog.h
index e2a9ce1c..632ea547 100644
--- a/YACReaderLibrary/import_library_dialog.h
+++ b/YACReaderLibrary/import_library_dialog.h
@@ -29,7 +29,7 @@ private:
     QProgressBar *progressBar;
     void setupUI();
     int progressCount;
-    void closeEvent(QCloseEvent *e);
+    void closeEvent(QCloseEvent *e) override;
     YACReaderLibraries libraries;
 public slots:
     void add();
diff --git a/YACReaderLibrary/import_widget.h b/YACReaderLibrary/import_widget.h
index f893d4c3..78b7daf9 100644
--- a/YACReaderLibrary/import_widget.h
+++ b/YACReaderLibrary/import_widget.h
@@ -41,7 +41,7 @@ private:
 
     QToolButton *hideButton;
 
-    void resizeEvent(QResizeEvent *event);
+    void resizeEvent(QResizeEvent *event) override;
 };
 
 #endif // IMPORT_WIDGET_H
diff --git a/YACReaderLibrary/info_comics_view.h b/YACReaderLibrary/info_comics_view.h
index 257e3975..a3f8c288 100644
--- a/YACReaderLibrary/info_comics_view.h
+++ b/YACReaderLibrary/info_comics_view.h
@@ -13,23 +13,23 @@ class InfoComicsView : public ComicsView
     Q_OBJECT
 public:
     explicit InfoComicsView(QWidget *parent = nullptr);
-    ~InfoComicsView();
-    void setToolBar(QToolBar *toolBar);
-    void setModel(ComicModel *model);
-    void setCurrentIndex(const QModelIndex &index);
-    QModelIndex currentIndex();
-    QItemSelectionModel *selectionModel();
-    void scrollTo(const QModelIndex &mi, QAbstractItemView::ScrollHint hint);
-    void toFullScreen();
-    void toNormal();
-    void updateConfig(QSettings *settings);
-    void enableFilterMode(bool enabled);
-    void selectIndex(int index);
-    void updateCurrentComicView();
+    ~InfoComicsView() override;
+    void setToolBar(QToolBar *toolBar) override;
+    void setModel(ComicModel *model) override;
+    void setCurrentIndex(const QModelIndex &index) override;
+    QModelIndex currentIndex() override;
+    QItemSelectionModel *selectionModel() override;
+    void scrollTo(const QModelIndex &mi, QAbstractItemView::ScrollHint hint) override;
+    void toFullScreen() override;
+    void toNormal() override;
+    void updateConfig(QSettings *settings) override;
+    void enableFilterMode(bool enabled) override;
+    void selectIndex(int index) override;
+    void updateCurrentComicView() override;
 
 public slots:
     void setShowMarks(bool show);
-    void selectAll();
+    void selectAll() override;
 
 protected slots:
     void setCurrentIndex(int index);
diff --git a/YACReaderLibrary/library_creator.h b/YACReaderLibrary/library_creator.h
index 3a21d5b6..a1774937 100644
--- a/YACReaderLibrary/library_creator.h
+++ b/YACReaderLibrary/library_creator.h
@@ -43,7 +43,7 @@ private:
     //recursive method
     void create(QDir currentDirectory);
     void update(QDir currentDirectory);
-    void run();
+    void run() override;
     qulonglong insertFolders(); //devuelve el id del último folder añadido (último en la ruta)
     bool checkCover(const QString &hash);
     void insertComic(const QString &relativePath, const QFileInfo &fileInfo);
diff --git a/YACReaderLibrary/no_search_results_widget.h b/YACReaderLibrary/no_search_results_widget.h
index 8ee5a794..57939af7 100644
--- a/YACReaderLibrary/no_search_results_widget.h
+++ b/YACReaderLibrary/no_search_results_widget.h
@@ -18,7 +18,7 @@ public slots:
 protected:
     QLabel *iconLabel;
     QLabel *titleLabel;
-    void paintEvent(QPaintEvent *);
+    void paintEvent(QPaintEvent *) override;
     QString backgroundColor;
 };
 
diff --git a/YACReaderLibrary/options_dialog.h b/YACReaderLibrary/options_dialog.h
index 6a5db8aa..575a0090 100644
--- a/YACReaderLibrary/options_dialog.h
+++ b/YACReaderLibrary/options_dialog.h
@@ -17,7 +17,7 @@ public:
 
 public slots:
     void editApiKey();
-    void restoreOptions(QSettings *settings);
+    void restoreOptions(QSettings *settings) override;
 
 private slots:
     void useBackgroundImageCheckClicked(bool checked);
diff --git a/YACReaderLibrary/properties_dialog.h b/YACReaderLibrary/properties_dialog.h
index 85a5679b..6aa953d7 100644
--- a/YACReaderLibrary/properties_dialog.h
+++ b/YACReaderLibrary/properties_dialog.h
@@ -110,7 +110,7 @@ private:
     void setDisableUniqueValues(bool disabled);
 
     QList<ComicDB> comics;
-    void closeEvent(QCloseEvent *e);
+    void closeEvent(QCloseEvent *e) override;
     void updateCoverPageNumberLabel(int n);
 
     bool coverChanged;
@@ -122,7 +122,7 @@ public:
     QString databasePath;
     QString basePath;
     QSize sizeHint();
-    void paintEvent(QPaintEvent *event);
+    void paintEvent(QPaintEvent *event) override;
 
 public slots:
     void setComics(QList<ComicDB> comics);
diff --git a/YACReaderLibrary/server/controllers/v1/comiccontroller.h b/YACReaderLibrary/server/controllers/v1/comiccontroller.h
index 4927cb5f..b7769670 100644
--- a/YACReaderLibrary/server/controllers/v1/comiccontroller.h
+++ b/YACReaderLibrary/server/controllers/v1/comiccontroller.h
@@ -19,7 +19,7 @@ public:
     ComicController();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // COMICCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v1/comicdownloadinfocontroller.h b/YACReaderLibrary/server/controllers/v1/comicdownloadinfocontroller.h
index ea424dc1..a9e8f1aa 100644
--- a/YACReaderLibrary/server/controllers/v1/comicdownloadinfocontroller.h
+++ b/YACReaderLibrary/server/controllers/v1/comicdownloadinfocontroller.h
@@ -15,7 +15,7 @@ public:
     ComicDownloadInfoController();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // COMICDOWNLOADINFOCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v1/covercontroller.h b/YACReaderLibrary/server/controllers/v1/covercontroller.h
index 8fec4229..7ec9eed5 100644
--- a/YACReaderLibrary/server/controllers/v1/covercontroller.h
+++ b/YACReaderLibrary/server/controllers/v1/covercontroller.h
@@ -15,7 +15,7 @@ public:
     CoverController();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // COVERCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v1/errorcontroller.h b/YACReaderLibrary/server/controllers/v1/errorcontroller.h
index bf1ed48e..6e5d9b8c 100644
--- a/YACReaderLibrary/server/controllers/v1/errorcontroller.h
+++ b/YACReaderLibrary/server/controllers/v1/errorcontroller.h
@@ -15,7 +15,7 @@ public:
     ErrorController(int errorCode);
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     int error;
diff --git a/YACReaderLibrary/server/controllers/v1/foldercontroller.h b/YACReaderLibrary/server/controllers/v1/foldercontroller.h
index 00e48503..c9b2033a 100644
--- a/YACReaderLibrary/server/controllers/v1/foldercontroller.h
+++ b/YACReaderLibrary/server/controllers/v1/foldercontroller.h
@@ -15,7 +15,7 @@ public:
     FolderController();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // FOLDERCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v1/folderinfocontroller.h b/YACReaderLibrary/server/controllers/v1/folderinfocontroller.h
index 55c38b05..d4703cbd 100644
--- a/YACReaderLibrary/server/controllers/v1/folderinfocontroller.h
+++ b/YACReaderLibrary/server/controllers/v1/folderinfocontroller.h
@@ -15,7 +15,7 @@ public:
     FolderInfoController();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     void serviceComics(const int &library, const qulonglong &folderId, HttpResponse &response);
diff --git a/YACReaderLibrary/server/controllers/v1/librariescontroller.h b/YACReaderLibrary/server/controllers/v1/librariescontroller.h
index d5f5b738..31dc760f 100644
--- a/YACReaderLibrary/server/controllers/v1/librariescontroller.h
+++ b/YACReaderLibrary/server/controllers/v1/librariescontroller.h
@@ -19,7 +19,7 @@ public:
     LibrariesController();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // LIBRARIESCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v1/pagecontroller.h b/YACReaderLibrary/server/controllers/v1/pagecontroller.h
index b9dc1e38..edee14bc 100644
--- a/YACReaderLibrary/server/controllers/v1/pagecontroller.h
+++ b/YACReaderLibrary/server/controllers/v1/pagecontroller.h
@@ -15,7 +15,7 @@ public:
     PageController();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // PAGECONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v1/synccontroller.h b/YACReaderLibrary/server/controllers/v1/synccontroller.h
index 28db0ddc..d10fa9f0 100644
--- a/YACReaderLibrary/server/controllers/v1/synccontroller.h
+++ b/YACReaderLibrary/server/controllers/v1/synccontroller.h
@@ -16,7 +16,7 @@ public:
     SyncController();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // SYNCCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v1/updatecomiccontroller.h b/YACReaderLibrary/server/controllers/v1/updatecomiccontroller.h
index 75399ecc..df9866ca 100644
--- a/YACReaderLibrary/server/controllers/v1/updatecomiccontroller.h
+++ b/YACReaderLibrary/server/controllers/v1/updatecomiccontroller.h
@@ -14,7 +14,7 @@ public:
     UpdateComicController();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // UPDATECOMICCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v2/comiccontroller_v2.h b/YACReaderLibrary/server/controllers/v2/comiccontroller_v2.h
index 2e6812f1..ab062afe 100644
--- a/YACReaderLibrary/server/controllers/v2/comiccontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/comiccontroller_v2.h
@@ -18,7 +18,7 @@ public:
     ComicControllerV2();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // COMICCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v2/comicdownloadinfocontroller_v2.h b/YACReaderLibrary/server/controllers/v2/comicdownloadinfocontroller_v2.h
index 4f5aeee9..fc5d254c 100644
--- a/YACReaderLibrary/server/controllers/v2/comicdownloadinfocontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/comicdownloadinfocontroller_v2.h
@@ -14,7 +14,7 @@ public:
     ComicDownloadInfoControllerV2();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // COMICDOWNLOADINFOCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v2/comicfullinfocontroller_v2.h b/YACReaderLibrary/server/controllers/v2/comicfullinfocontroller_v2.h
index 6de5c5ab..de58acff 100644
--- a/YACReaderLibrary/server/controllers/v2/comicfullinfocontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/comicfullinfocontroller_v2.h
@@ -12,7 +12,7 @@ class ComicFullinfoController_v2 : public HttpRequestHandler
 public:
     ComicFullinfoController_v2();
 
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     void serviceContent(const int &library, const qulonglong &comicId, HttpResponse &response);
diff --git a/YACReaderLibrary/server/controllers/v2/covercontroller_v2.h b/YACReaderLibrary/server/controllers/v2/covercontroller_v2.h
index 3e3555f5..1518fb3a 100644
--- a/YACReaderLibrary/server/controllers/v2/covercontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/covercontroller_v2.h
@@ -14,7 +14,7 @@ public:
     CoverControllerV2();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // COVERCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v2/errorcontroller_v2.h b/YACReaderLibrary/server/controllers/v2/errorcontroller_v2.h
index ca3b89d8..a87f818f 100644
--- a/YACReaderLibrary/server/controllers/v2/errorcontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/errorcontroller_v2.h
@@ -14,7 +14,7 @@ public:
     ErrorControllerV2(int errorCode);
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     int error;
diff --git a/YACReaderLibrary/server/controllers/v2/favoritescontroller_v2.h b/YACReaderLibrary/server/controllers/v2/favoritescontroller_v2.h
index a61148dc..10991c20 100644
--- a/YACReaderLibrary/server/controllers/v2/favoritescontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/favoritescontroller_v2.h
@@ -12,7 +12,7 @@ class FavoritesControllerV2 : public HttpRequestHandler
 public:
     FavoritesControllerV2();
 
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     void serviceContent(const int library, HttpResponse &response);
diff --git a/YACReaderLibrary/server/controllers/v2/foldercontentcontroller_v2.h b/YACReaderLibrary/server/controllers/v2/foldercontentcontroller_v2.h
index c6c80262..e3f31cc6 100644
--- a/YACReaderLibrary/server/controllers/v2/foldercontentcontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/foldercontentcontroller_v2.h
@@ -14,7 +14,7 @@ public:
     FolderContentControllerV2();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     void serviceContent(const int &library, const qulonglong &folderId, HttpResponse &response);
diff --git a/YACReaderLibrary/server/controllers/v2/folderinfocontroller_v2.h b/YACReaderLibrary/server/controllers/v2/folderinfocontroller_v2.h
index 1fe23c90..7727105c 100644
--- a/YACReaderLibrary/server/controllers/v2/folderinfocontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/folderinfocontroller_v2.h
@@ -14,7 +14,7 @@ public:
     FolderInfoControllerV2();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     void serviceComics(const int &library, const qulonglong &folderId, HttpResponse &response);
diff --git a/YACReaderLibrary/server/controllers/v2/librariescontroller_v2.h b/YACReaderLibrary/server/controllers/v2/librariescontroller_v2.h
index 304e8d0c..858ae645 100644
--- a/YACReaderLibrary/server/controllers/v2/librariescontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/librariescontroller_v2.h
@@ -18,7 +18,7 @@ public:
     LibrariesControllerV2();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // LIBRARIESCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v2/pagecontroller_v2.h b/YACReaderLibrary/server/controllers/v2/pagecontroller_v2.h
index 7177f4d5..c688f690 100644
--- a/YACReaderLibrary/server/controllers/v2/pagecontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/pagecontroller_v2.h
@@ -14,7 +14,7 @@ public:
     PageControllerV2();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // PAGECONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v2/readingcomicscontroller_v2.h b/YACReaderLibrary/server/controllers/v2/readingcomicscontroller_v2.h
index cf8db8af..f3a2a5bc 100644
--- a/YACReaderLibrary/server/controllers/v2/readingcomicscontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/readingcomicscontroller_v2.h
@@ -12,7 +12,7 @@ class ReadingComicsControllerV2 : public HttpRequestHandler
 public:
     ReadingComicsControllerV2();
 
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     void serviceContent(const int &library, HttpResponse &response);
diff --git a/YACReaderLibrary/server/controllers/v2/readinglistcontentcontroller_v2.h b/YACReaderLibrary/server/controllers/v2/readinglistcontentcontroller_v2.h
index d8f92e4f..270360a3 100644
--- a/YACReaderLibrary/server/controllers/v2/readinglistcontentcontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/readinglistcontentcontroller_v2.h
@@ -12,7 +12,7 @@ class ReadingListContentControllerV2 : public HttpRequestHandler
 public:
     ReadingListContentControllerV2();
 
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     void serviceContent(const int &library, const qulonglong &readingListId, HttpResponse &response);
diff --git a/YACReaderLibrary/server/controllers/v2/readinglistinfocontroller_v2.h b/YACReaderLibrary/server/controllers/v2/readinglistinfocontroller_v2.h
index c6910b06..399cc34f 100644
--- a/YACReaderLibrary/server/controllers/v2/readinglistinfocontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/readinglistinfocontroller_v2.h
@@ -12,7 +12,7 @@ class ReadingListInfoControllerV2 : public HttpRequestHandler
 public:
     ReadingListInfoControllerV2();
 
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     void serviceComics(const int &library, const qulonglong &readingListId, HttpResponse &response);
diff --git a/YACReaderLibrary/server/controllers/v2/readinglistscontroller_v2.h b/YACReaderLibrary/server/controllers/v2/readinglistscontroller_v2.h
index 89d1619e..1c336d9f 100644
--- a/YACReaderLibrary/server/controllers/v2/readinglistscontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/readinglistscontroller_v2.h
@@ -12,7 +12,7 @@ class ReadingListsControllerV2 : public HttpRequestHandler
 public:
     ReadingListsControllerV2();
 
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     void serviceContent(const int library, HttpResponse &response);
diff --git a/YACReaderLibrary/server/controllers/v2/synccontroller_v2.h b/YACReaderLibrary/server/controllers/v2/synccontroller_v2.h
index a6198710..08aff598 100644
--- a/YACReaderLibrary/server/controllers/v2/synccontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/synccontroller_v2.h
@@ -16,7 +16,7 @@ public:
     SyncControllerV2();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // SYNCCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v2/tagcontentcontroller_v2.h b/YACReaderLibrary/server/controllers/v2/tagcontentcontroller_v2.h
index 6eeb5f98..391c97c0 100644
--- a/YACReaderLibrary/server/controllers/v2/tagcontentcontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/tagcontentcontroller_v2.h
@@ -14,7 +14,7 @@ public:
     TagContentControllerV2();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     void serviceContent(const int &library, const qulonglong &tagId, HttpResponse &response);
diff --git a/YACReaderLibrary/server/controllers/v2/taginfocontroller_v2.h b/YACReaderLibrary/server/controllers/v2/taginfocontroller_v2.h
index c0888f8c..92bed920 100644
--- a/YACReaderLibrary/server/controllers/v2/taginfocontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/taginfocontroller_v2.h
@@ -12,7 +12,7 @@ class TagInfoControllerV2 : public HttpRequestHandler
 public:
     TagInfoControllerV2();
 
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 
 private:
     void serviceComics(const int &library, const qulonglong &tagId, HttpResponse &response);
diff --git a/YACReaderLibrary/server/controllers/v2/tagscontroller_v2.h b/YACReaderLibrary/server/controllers/v2/tagscontroller_v2.h
index 63cf9bec..86bd2c54 100644
--- a/YACReaderLibrary/server/controllers/v2/tagscontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/tagscontroller_v2.h
@@ -14,7 +14,7 @@ public:
     TagsControllerV2();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // TAGSCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/v2/updatecomiccontroller_v2.h b/YACReaderLibrary/server/controllers/v2/updatecomiccontroller_v2.h
index e6071df7..9bdea250 100644
--- a/YACReaderLibrary/server/controllers/v2/updatecomiccontroller_v2.h
+++ b/YACReaderLibrary/server/controllers/v2/updatecomiccontroller_v2.h
@@ -14,7 +14,7 @@ public:
     UpdateComicControllerV2();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // UPDATECOMICCONTROLLER_H
diff --git a/YACReaderLibrary/server/controllers/versioncontroller.h b/YACReaderLibrary/server/controllers/versioncontroller.h
index 77a5543d..fdc4ae09 100644
--- a/YACReaderLibrary/server/controllers/versioncontroller.h
+++ b/YACReaderLibrary/server/controllers/versioncontroller.h
@@ -17,7 +17,7 @@ public:
     VersionController();
 
     /** Generates the response */
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
 };
 
 #endif // VERSIONCONTROLLER_H
diff --git a/YACReaderLibrary/server/lib/httpserver/httpconnectionhandler.h b/YACReaderLibrary/server/lib/httpserver/httpconnectionhandler.h
index b659ce59..d32c4451 100644
--- a/YACReaderLibrary/server/lib/httpserver/httpconnectionhandler.h
+++ b/YACReaderLibrary/server/lib/httpserver/httpconnectionhandler.h
@@ -91,7 +91,7 @@ private:
     QSslConfiguration* sslConfiguration;
 
     /** Executes the threads own event loop */
-    void run();
+    void run() override;
 
     /**  Create SSL or TCP socket */
     void createSocket();
diff --git a/YACReaderLibrary/server/lib/httpserver/httplistener.h b/YACReaderLibrary/server/lib/httpserver/httplistener.h
index 25303188..7bd49308 100644
--- a/YACReaderLibrary/server/lib/httpserver/httplistener.h
+++ b/YACReaderLibrary/server/lib/httpserver/httplistener.h
@@ -71,7 +71,7 @@ public:
 protected:
 
     /** Serves new incoming connection requests */
-    void incomingConnection(tSocketDescriptor socketDescriptor);
+    void incomingConnection(tSocketDescriptor socketDescriptor) override;
 
 private:
 
diff --git a/YACReaderLibrary/server/lib/httpserver/staticfilecontroller.h b/YACReaderLibrary/server/lib/httpserver/staticfilecontroller.h
index 17e98c32..bda713d8 100644
--- a/YACReaderLibrary/server/lib/httpserver/staticfilecontroller.h
+++ b/YACReaderLibrary/server/lib/httpserver/staticfilecontroller.h
@@ -49,7 +49,7 @@ public:
     StaticFileController(QSettings* settings, QObject* parent = nullptr);
 
     /** Generates the response */
-    void service(HttpRequest& request, HttpResponse& response);
+    void service(HttpRequest& request, HttpResponse& response) override;
 
 private:
 
diff --git a/YACReaderLibrary/server/requestmapper.h b/YACReaderLibrary/server/requestmapper.h
index a380d747..20ba7238 100644
--- a/YACReaderLibrary/server/requestmapper.h
+++ b/YACReaderLibrary/server/requestmapper.h
@@ -16,7 +16,7 @@ class RequestMapper : public HttpRequestHandler
 public:
     RequestMapper(QObject *parent = nullptr);
 
-    void service(HttpRequest &request, HttpResponse &response);
+    void service(HttpRequest &request, HttpResponse &response) override;
     void loadSessionV1(HttpRequest &request, HttpResponse &response);
     void loadSessionV2(HttpRequest &request, HttpResponse &response);
 
diff --git a/YACReaderLibrary/server/yacreader_http_session.h b/YACReaderLibrary/server/yacreader_http_session.h
index 56bb931a..476079a5 100644
--- a/YACReaderLibrary/server/yacreader_http_session.h
+++ b/YACReaderLibrary/server/yacreader_http_session.h
@@ -10,7 +10,7 @@ class YACReaderHttpSession : public QObject
     Q_OBJECT
 public:
     explicit YACReaderHttpSession(QObject *parent = nullptr);
-    ~YACReaderHttpSession();
+    ~YACReaderHttpSession() override;
 
     void setComicsOnDevice(const QSet<QString> &set);
     void setComicOnDevice(const QString &hash);
diff --git a/YACReaderLibrary/yacreader_folders_view.h b/YACReaderLibrary/yacreader_folders_view.h
index dc6db47a..53ce6b4a 100644
--- a/YACReaderLibrary/yacreader_folders_view.h
+++ b/YACReaderLibrary/yacreader_folders_view.h
@@ -18,10 +18,10 @@ signals:
 
 protected:
     //Drop to import
-    void dragEnterEvent(QDragEnterEvent *event);
-    void dragLeaveEvent(QDragLeaveEvent *event);
-    void dragMoveEvent(QDragMoveEvent *event);
-    void dropEvent(QDropEvent *event);
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dragLeaveEvent(QDragLeaveEvent *event) override;
+    void dragMoveEvent(QDragMoveEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
 };
 
 class YACReaderFoldersViewItemDeletegate : public QStyledItemDelegate
@@ -29,7 +29,7 @@ class YACReaderFoldersViewItemDeletegate : public QStyledItemDelegate
     Q_OBJECT
 public:
     explicit YACReaderFoldersViewItemDeletegate(QObject *parent = nullptr);
-    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
+    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
 };
 
 #endif // YACREADER_FOLDERS_VIEW_H
diff --git a/YACReaderLibrary/yacreader_local_server.h b/YACReaderLibrary/yacreader_local_server.h
index 3086f57b..8db3e8de 100644
--- a/YACReaderLibrary/yacreader_local_server.h
+++ b/YACReaderLibrary/yacreader_local_server.h
@@ -33,7 +33,7 @@ class YACReaderClientConnectionWorker : public QThread
     Q_OBJECT
 public:
     YACReaderClientConnectionWorker(QLocalSocket *clientConnection);
-    ~YACReaderClientConnectionWorker();
+    ~YACReaderClientConnectionWorker() override;
 signals:
     void comicUpdated(quint64 libraryId, const ComicDB &comic);
 
diff --git a/YACReaderLibrary/yacreader_main_toolbar.h b/YACReaderLibrary/yacreader_main_toolbar.h
index 76ded23f..80323b30 100644
--- a/YACReaderLibrary/yacreader_main_toolbar.h
+++ b/YACReaderLibrary/yacreader_main_toolbar.h
@@ -15,7 +15,7 @@ class YACReaderMainToolBar : public QWidget
     Q_OBJECT
 public:
     explicit YACReaderMainToolBar(QWidget *parent = nullptr);
-    QSize sizeHint() const;
+    QSize sizeHint() const override;
 
     QToolButton *backButton;
     QToolButton *forwardButton;
@@ -32,8 +32,8 @@ signals:
 public slots:
 
 private:
-    void paintEvent(QPaintEvent *);
-    void resizeEvent(QResizeEvent *);
+    void paintEvent(QPaintEvent *) override;
+    void resizeEvent(QResizeEvent *) override;
 
     QHBoxLayout *mainLayout;
 
diff --git a/YACReaderLibrary/yacreader_reading_lists_view.h b/YACReaderLibrary/yacreader_reading_lists_view.h
index 728fedf5..cf2844c5 100644
--- a/YACReaderLibrary/yacreader_reading_lists_view.h
+++ b/YACReaderLibrary/yacreader_reading_lists_view.h
@@ -13,9 +13,9 @@ public:
 
 protected:
     //Drop to import & internal Drag&Drop for resorting
-    void dragEnterEvent(QDragEnterEvent *event);
-    void dragMoveEvent(QDragMoveEvent *event);
-    void dropEvent(QDropEvent *event);
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dragMoveEvent(QDragMoveEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
 };
 
 class YACReaderReadingListsViewItemDeletegate : public QStyledItemDelegate
@@ -23,7 +23,7 @@ class YACReaderReadingListsViewItemDeletegate : public QStyledItemDelegate
     Q_OBJECT
 public:
     explicit YACReaderReadingListsViewItemDeletegate(QObject *parent = nullptr);
-    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
+    void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
     QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const;
 };