C / C++ / MFC

#include <iostream>
#include <locale>
#include <string>
 
using namespace std;
 
class my_punct:public std::numpunct<char>
{
  protected:
    char do_thousands_sep() const {return ',';}
    std::string do_grouping() const {return "\3";}
  public:
    my_punct():numpunct<char>(){}
};
 
int main(){
  locale  loc = cout.getloc(); // get current locale.
  locale new_loc=_ADDFAC(loc,new my_punct);        
  cout.imbue(new_loc); // use new_loc        
  cout <<1000000 << endl;
  cout.imbue(loc);        // restore the locale to normal
}

class CInputCommandMap
{
public:
	CInputCommandMap();
	~CInputCommandMap();

	void LoadCommandMap(char *file);
	virtual void ProcessInput(char *keys, DIMOUSESTATE2 *mouse) = 0;
	
	CInputCommand m_keyA;
	CInputCommand m_keyB;
	CInputCommand m_keyC;
        More Keys...
};

class CDefaultKeyMap : public CInputCommandMap
{
public:
	CDefaultKeyMap(){}
	~CDefaultKeyMap(){}

	void ProcessInput(char *keys, DIMOUSESTATE2 *mouse);
};

void LoadCommandMap(CInputCommandMap *map){m_pCommandMap = map;}

pDefaultCommandMap = new CDefaultKeyMap;
pDefaultCommandMap->LoadCommandMap("default.key");
pInput->LoadCommandMap(pDefaultCommandMap);

    Code...In an update function that is in the main input class

if(m_pCommandMap)
    m_pCommandMap->ProcessInput((char *)m_Keys,&m_MouseState);