#include <windows.h>
#include <iostream.h>
 
const char *ClsName = "BasicApp";
const char *WndName = "Test -";
 
LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
BOOL CALLBACK EnumProc(HWND hWnd2, LPARAM lParam);
 
HINSTANCE hInstance;
HWND hWnd;
char String[3];
int NumWnds;
 
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPSTR lpCmdLine, int nCmdShow)
{
MSG Msg;
HWND hWnd;
WNDCLASSEX WndClsEx;
 
// Create the application window
WndClsEx.cbSize = sizeof(WNDCLASSEX);
WndClsEx.style = CS_HREDRAW | CS_VREDRAW;
WndClsEx.lpfnWndProc = WndProc;
WndClsEx.cbClsExtra = 0;
WndClsEx.cbWndExtra = 0;
WndClsEx.hIcon = LoadIcon(NULL, IDI_APPLICATION);
WndClsEx.hCursor = LoadCursor(NULL, IDC_ARROW);
WndClsEx.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
WndClsEx.lpszMenuName = NULL;
WndClsEx.lpszClassName = ClsName;
WndClsEx.hInstance = hInstance;
WndClsEx.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
 
// Register the application
RegisterClassEx(&WndClsEx);
 
// Create the window object
hWnd = CreateWindow(ClsName,
WndName,
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
hInstance,
NULL);
 
// Find out if the window was created
if( !hWnd ) // If the window was not created,
return 0; // stop the application
 
// Display the window to the user
ShowWindow(hWnd, SW_SHOWNORMAL);
UpdateWindow(hWnd);
 
// Decode and treat the messages
// as long as the application is running
while( GetMessage(&Msg, NULL, 0, 0) )
{
TranslateMessage(&Msg);
DispatchMessage(&Msg);
}
 
return Msg.wParam;
}
 
LRESULT CALLBACK WndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
 
 static HMENU MainMenu = CreateMenu(), TotalWnds = CreatePopupMenu();
 
 switch(Msg)
 {
 
  case WM_DESTROY :
 
   KillTimer(hWnd, 201);
   PostQuitMessage(WM_QUIT);
 
  break;
 
  case WM_CLOSE :
 
   DestroyWindow(hWnd);
 
  break;
 
  case WM_CREATE :
 
   AppendMenu(MainMenu, MF_POPUP, (UINT)TotalWnds, "Total Windows");
   SetMenu(hWnd, MainMenu);
   SetTimer(hWnd, 201, 1000, NULL);
 
  break;
 
  case WM_TIMER :
 
   switch(wParam)
   {
 
    case 201 :
 
     EnumWindows((WNDENUMPROC)&EnumProc, NULL);
     sprintf(String, "%d", NumWnds);
     AppendMenu(TotalWnds, MF_STRING, NULL, String);
 
     NumWnds = 0;
 
    break;
 
   }
 
  break;
 
 }
 
 return DefWindowProc(hWnd, Msg, wParam, lParam);
 
}
 
BOOL CALLBACK EnumProc(HWND hWnd2, LPARAM lParam)
{
 
 ++NumWnds;
 
 return true;
 
}