diff --git a/QtScrcpy/QtScrcpyCore/include/QtScrcpyCore.h b/QtScrcpy/QtScrcpyCore/include/QtScrcpyCore.h
index cc21e35..551d135 100644
--- a/QtScrcpy/QtScrcpyCore/include/QtScrcpyCore.h
+++ b/QtScrcpy/QtScrcpyCore/include/QtScrcpyCore.h
@@ -15,9 +15,18 @@ protected:
     }
 
 public:
-    virtual void onFrame(int width, int height, uint8_t* dataY, uint8_t* dataU, uint8_t* dataV, int linesizeY, int linesizeU, int linesizeV) {}
-    virtual void updateFPS(quint32 fps) {}
-    virtual void grabCursor(bool grab) {}
+    virtual void onFrame(int width, int height, uint8_t* dataY, uint8_t* dataU, uint8_t* dataV, int linesizeY, int linesizeU, int linesizeV) {
+        Q_UNUSED(width);
+        Q_UNUSED(height);
+        Q_UNUSED(dataY);
+        Q_UNUSED(dataU);
+        Q_UNUSED(dataV);
+        Q_UNUSED(linesizeY);
+        Q_UNUSED(linesizeU);
+        Q_UNUSED(linesizeV);
+    }
+    virtual void updateFPS(quint32 fps) { Q_UNUSED(fps); }
+    virtual void grabCursor(bool grab) {Q_UNUSED(grab);}
 };
 
 class IDevice : public QObject {
diff --git a/QtScrcpy/ui/videoform.h b/QtScrcpy/ui/videoform.h
index 047846b..0a442d7 100644
--- a/QtScrcpy/ui/videoform.h
+++ b/QtScrcpy/ui/videoform.h
@@ -49,23 +49,23 @@ private:
     QRect getScreenRect();
 
 protected:
-    void mousePressEvent(QMouseEvent *event);
-    void mouseReleaseEvent(QMouseEvent *event);
-    void mouseMoveEvent(QMouseEvent *event);
-    void mouseDoubleClickEvent(QMouseEvent *event);
-    void wheelEvent(QWheelEvent *event);
-    void keyPressEvent(QKeyEvent *event);
-    void keyReleaseEvent(QKeyEvent *event);
+    void mousePressEvent(QMouseEvent *event) override;
+    void mouseReleaseEvent(QMouseEvent *event) override;
+    void mouseMoveEvent(QMouseEvent *event) override;
+    void mouseDoubleClickEvent(QMouseEvent *event) override;
+    void wheelEvent(QWheelEvent *event) override;
+    void keyPressEvent(QKeyEvent *event) override;
+    void keyReleaseEvent(QKeyEvent *event) override;
 
-    void paintEvent(QPaintEvent *);
-    void showEvent(QShowEvent *event);
-    void resizeEvent(QResizeEvent *event);
-    void closeEvent(QCloseEvent *event);
+    void paintEvent(QPaintEvent *) override;
+    void showEvent(QShowEvent *event) override;
+    void resizeEvent(QResizeEvent *event) override;
+    void closeEvent(QCloseEvent *event) override;
 
-    void dragEnterEvent(QDragEnterEvent *event);
-    void dragMoveEvent(QDragMoveEvent *event);
-    void dragLeaveEvent(QDragLeaveEvent *event);
-    void dropEvent(QDropEvent *event);
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dragMoveEvent(QDragMoveEvent *event) override;
+    void dragLeaveEvent(QDragLeaveEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
 
 private:
     // ui