Here is the Small Windows control hierarchy:

Control.h

namespace SmallWindows { 
  class Dialog; 

The constructor sends the parent window pointer to the Window constructer and stores the other values until it is added to the dialog information list by AddControlInfo:

  class Control : public Window { 
    public: 
      Control(Dialog* parentPtr, Point topLeft, Size controlSize, 
              String className, String text, int style); 
      void AddControlInfo(InfoList& infoList) const; 
 
      Point TopLeft() const {return topLeft;} 
      Size GetSize() const {return controlSize;} 

The following methods are intended to be overridden by subclasses and are by default empty:

      virtual void OnControlInit(Dialog* dialogPtr) {/* Empty. */} 
      virtual void OnGainFocus(Dialog* dialogPtr) {/* Empty. */} 
      virtual void OnLoseFocus(Dialog* dialogPtr) {/* Empty. */} 
      virtual void OnChange(Dialog* dialogPtr...