text: #include <LibGUI/GWidget.h>
  
  class GResizeCorner : public GWidget {
      C_OBJECT(GResizeCorner)
  public:
      virtual ~GResizeCorner() override;
  
  protected:
      explicit GResizeCorner(GWidget* parent);
  
      virtual void paint_event(GPaintEvent&) override;
      virtual void mousedown_event(GMouseEvent&) override;
      virtual void enter_event(CEvent&) override;
      virtual void leave_event(CEvent&) override;
  
  private:
      RefPtr<GraphicsBitmap> m_bitmap;
  };
  