C / C++ / MFC

// header file your window definition 
class MyWindow : public CFrameWnd
{
   CWnd* m_pParent;

public:
   MyWindow( CWnd* pParent ) : m_pParent( pParent )
   {
      Create(  0, _T("Hello Window!!!") );
   }
};


// your dialog source file button click handler
void CPopupDlg::OnBnClickedButton1()
{
   if( m_pMyWindow == 0 ) {
      m_pMyWindow = new MyWindow( this );
   }

   if( m_pMyWindow->GetSafeHwnd() != 0 )
   {
      m_pMyWindow->ShowWindow( SW_SHOW );
      m_pMyWindow->UpdateWindow();
   }
}

m_objInfoWindowLineOne.UpdateWindow()

typedef std::pair< int, int > cartesian_type; // row, column
typedef std::map< std::string, cartesian_type > cart_map_type;
cart_map_type coord_cart_conv_;  // coordinate to Cartesian

John R. Shaw wrote:

Well their types do not matter that much with regards to the question

// Console.cpp : Defines the entry point for the console application.
//
 
#include "stdafx.h"
#include <utility>
#include <map>
#include <string>
 
typedef std::pair< int, int > cartesian_type;
typedef std::map< std::string, cartesian_type > cart_map_type;
cart_map_type coord_cart_conv_;
 
int main(int arvc, char* argv[])
{
	using namespace std;
 
	cartesian_type cart = coord_cart_conv_[string("Hello")];
 
	return 0;
}

class TestClass
{
    typedef std::map< int, int > m_test_map;
public:
    TestClass()
    {
        for( int i=0; i<10; ++i)
            m_test_map[i] = i;
    }
    int get_value(int i) const  // constant function
    {
        return m_test_map[i];
    }
};

class TestClass2
{
    std::string m_str;
public:
    TestClass() { m_str = "Hello"; }
    int get_char(int i) const // constant function
    {
        return m_str[i]; 
    }
};