#include <windows.h>

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

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

    wndclass.style = CS_HREDRAW | CS_VREDRAW;
    wndclass.lpfnWndProc = WndProc;
    wndclass.cbClsExtra = 0;
    wndclass.cbWndExtra = 0;
    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("This Program requires Windows NT!"),
                  szAppName, MB_ICONERROR);
        return 0;
    }

    hwnd = CreateWindow (szAppName,
                         TEXT("The Hello Program"),
                         WS_OVERLAPPEDWINDOW,
                         CW_USEDEFAULT,
                         CW_USEDEFAULT,
                         CW_USEDEFAULT,
                         CW_USEDEFAULT,
                         NULL,
                         NULL,
                         hInstance,
                         NULL);
   ShowWindow(hwnd, iCmdShow);
   UpdateWindow(hwnd);

   while(GetMessage(&msg, NULL, 0, 0))
   {
      TranslateMessage(&msg);
      DispatchMessage(&msg);
   }
   return msg.wParam;
}

LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
   HDC hdc;
   PAINTSTRUCT ps;
   RECT rect;

   switch(message)
   {
      case WM_CREATE:
         PlaySound (TEXT ("hellowin.wav"), NULL, SND_FILENAME | SND_ASYNC) ;
      return 0;

      case WM_PAINT:
         hdc = BeginPaint(hwnd, &ps);

         GetClientRect(hwnd, &rect);

         DrawText(hdc, TEXT("Hello, Windows 98!"), -1, &rect,
                  DT_SINGLELINE | DT_CENTER | DT_VCENTER);
         EndPaint(hwnd, &ps);
         return 0;
      case WM_DESTROY:
         PostQuitMessage(0);
         return 0;
     }
     return DefWindowProc(hwnd, message, wParam, lParam);
}
[/source