C / C++ / MFC

class CInsertEdit :
	public CWnd
{
DECLARE_DYNAMIC(CInsertEdit)
	... 

protected:
	...
	
	afx_msg void GetCustomerName();
	afx_msg void GetInitialBalance();
	afx_msg void GetPhoneNumber();
	afx_msg void GetDateOfBirth();
	afx_msg void GetCountry();
	...
};

#include "InsertEdit.h"

#define INSERTWINDOWCLASS L"INSERTWINDOWCLASS"
...
BEGIN_MESSAGE_MAP( CInsertEdit, CWnd)
	ON_WM_CTLCOLOR()
	ON_WM_CREATE()
	ON_WM_PAINT()
	ON_COMMAND(TEXT_2,GetCustomerName)
	ON_COMMAND(TEXT_3,GetInitialBalance)
	ON_COMMAND(TEXT_4,GetPhoneNumber)
	ON_COMMAND(TEXT_5,GetDateOfBirth)
	ON_COMMAND(TEXT_6,GetCountry)
END_MESSAGE_MAP()
IMPLEMENT_DYNAMIC(CInsertEdit, CWnd)
...
afx_msg void CInsertEdit::GetCustomerName()
	{
		wchar_t cst[256];
		UserName.GetWindowTextW(cst,256);
		MessageBox(cst,L"Test",MB_OK);
	}
...

class B
{
private:
	A *a;
public:
	B(A *ta)
	{
		a=ta;
	}
};
class A
{
	int a;
	B *b;
public:
	A()
	{
		b=new B(this);
	}

};

class CInsertEdit:public CWnd
{
 .....
 /*This is a custom class with save button. What I want is after*/
}
class MainWnd:public CWnd
{
  CInsertEdit *m_insertEdit;
  public:
    MainWnd()
    {
      Create(NULL,L"/\/\/\/\/\/");
      .....
      Check=m_pInsertEdit->Create(this,CRect(160,0,500,500), 1, WS_CHILD|WS_VISIBLE|WS_BORDER|WS_TABSTOP);
    }
  int ReEditTreeContol()
  {
    ......
  }
  protected:

}