API模板

 #include <windows.h>
 #include <windowsx.h>

 #define DIVISIONS 5

 LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;

 int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
                     PSTR szCmdLine, int iCmdShow)
 {
      static TCHAR szAppName[] = TEXT ("Checker2") ;
      HWND         hwnd ;
      MSG          msg ;
      WNDCLASS     wndclass ;

      wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
      wndclass.lpfnWndProc   = WndProc ;
      wndclass.cbClsExtra    =  ;
      wndclass.cbWndExtra    =  ;
      wndclass.hInstance     = hInstance ;
      wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
      wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
      wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
      wndclass.lpszMenuName  = NULL ;
      wndclass.lpszClassName = szAppName ;

      if (!RegisterClass (&wndclass))
      {
           MessageBox (NULL, TEXT ("Program requires Windows NT!"),
                       szAppName, MB_ICONERROR) ;
           return  ;
      }

      hwnd = CreateWindow (szAppName, TEXT ("Checker2 Mouse Hit-Test Demo"),
                           WS_OVERLAPPEDWINDOW,
                           CW_USEDEFAULT, CW_USEDEFAULT,
                           CW_USEDEFAULT, CW_USEDEFAULT,
                           NULL, NULL, hInstance, NULL) ;

      ShowWindow (hwnd, iCmdShow) ;
      UpdateWindow (hwnd) ;

      while (GetMessage (&msg, NULL, , ))
      {
           TranslateMessage (&msg) ;
           DispatchMessage (&msg) ;
      }
      return msg.wParam ;
 }

 LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
 {

   EndPaint (hwnd, &ps) ;
           return  ;

      case WM_DESTROY :
           PostQuitMessage () ;
           return  ;
      }
      return DefWindowProc (hwnd, message, wParam, lParam) ;
 }