Understanding CDockablePane

/* 
 * Developed by Huzifa Terkawi 
 * http://www.codeproject.com/Members/huzifa30
 * All permission granted to use this code as long as you retain this notice
 * and refere to orginal Material when part of this code is re-puplished
*/
#ifndef HTMLPANE_H_010DCC620F7740e9A76F3CCCB00CD6D9
#define HTMLPANE_H_010DCC620F7740e9A76F3CCCB00CD6D9

#include <afxhtml.h>

class CHtmlPane : public CDockablePane 
{
	DECLARE_DYNAMIC(CHtmlPane)
	DECLARE_MESSAGE_MAP()
public :
	CHtmlPane();
	virtual ~CHtmlPane();
protected:
	afx_msg int OnCreate(LPCREATESTRUCT lp);
	afx_msg void OnSize(UINT nType,int cx,int cy);
	afx_msg void OnDestroy();
protected:
	CHtmlView* m_wndHtml;
};
#endif