C / C++ / MFC

class Test
{
private:  
  typedef void (Test::*SayHello)(char*);
  SayHello sayHello;

  // Made the constructor private
  Test()
  {
    sayHello = &Test::Say;
  }

  // Preventing compiler generated methods
  Test(const Test&);
  Test& operator=(const Test&);

  void Say(char* name)
  {
    cout<< "Hello " << name;
  }

  static void test()
  {    
    Test* instance = Test::getInstance();
    instance->FireSayHello("hello");
  }

public:
  
  void FireSayHello(char* message)
  {
    (*this.*sayHello)(message);
  }

  static Test* getInstance()
  {
    static Test instance;
    return &instance;
  }	
};

MrMcIntyre wrote:

but what I want is when you click on the application a login window appears so users can login to the project or create a new account with a new window.

<br />
<br />
// include the basic windows header files and the Direct3D header file<br />
#include <windows.h><br />
#include <windowsx.h><br />
#include <d3d9.h><br />
<br />
// include the Direct3D Library file<br />
#pragma comment (lib, "d3d9.lib")<br />
<br />
// global declarations<br />
LPDIRECT3D9 d3d;    // the pointer to our Direct3D interface<br />
LPDIRECT3DDEVICE9 d3ddev;    // the pointer to the device class<br />
<br />
// function prototypes<br />
void initD3D(HWND hWnd);    // sets up and initializes Direct3D<br />
void render_frame(void);    // renders a single frame<br />
void cleanD3D(void);    // closes Direct3D and releases memory<br />
<br />
// the WindowProc function prototype<br />
LRESULT CALLBACK WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);<br />
<br />
// the entry point for any Windows program<br />
int WINAPI WinMain(HINSTANCE hInstance,<br />
                   HINSTANCE hPrevInstance,<br />
                   LPSTR lpCmdLine,<br />
                   int nCmdShow)<br />
{<br />
    HWND hWnd;<br />
    WNDCLASSEX wc;<br />
<br />
	hWnd = CreateWindow(TEXT ("Login"),<br />
                          TEXT ("Login"),<br />
                          WS_OVERLAPPEDWINDOW,<br />
                          CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,<br />
                          NULL,NULL,NULL,NULL);<br />
  ShowWindow(hWnd,SW_SHOWNORMAL);<br />
  UpdateWindow(hWnd);<br />
  hdc = CreateDC(TEXT ("Design Results"), NULL, NULL, NULL);<br />