WSAAsyncSelect Demo

 #include <WinSock2.h>
 #include <Windows.h>
 #include <StrSafe.h>
 
  comment(lib, "Ws2_32")
 
  WM_SOCKET WM_USER+1
 
                                                  
                                                 SOCKET client =                     WSAAsyncSelect(client, hWnd, WM_SOCKET, FD_READ | FD_WRITE |                                                                                   CHAR szText[] = {                       (SOCKET_ERROR == recv(wParam, szText, ,                          
                          CHAR szMsg[] =                           MessageBoxA(hWnd, szMsg,                                                                              PostQuitMessage(                                
  WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPreInstance, PSTR pcszCommand,       TCHAR szAppName[] = TEXT(  
     wndClsEx.cbClsExtra =      wndClsEx.cbSize =      wndClsEx.cbWndExtra =      wndClsEx.hbrBackground =     wndClsEx.hCursor =     wndClsEx.hIcon =     wndClsEx.hIconSm =     wndClsEx.hInstance =     wndClsEx.lpfnWndProc =     wndClsEx.lpszClassName =     wndClsEx.lpszMenuName =     wndClsEx.style = CS_HREDRAW |     
      (!RegisterClassEx(&          MessageBox(NULL, TEXT(), TEXT(), MB_OK |            
     HWND hWnd =                          (NULL ==          MessageBox(NULL, TEXT(), TEXT(), MB_OK |            
   
      WSAStartup(WINSOCK_VERSION, & 
     SOCKET sListen =      (INVALID_SOCKET ==          MessageBox(hWnd, TEXT(), TEXT(), MB_OK |             
      USHORT uPort =      
     ZeroMemory(&sin,      sin.sin_family =     sin.sin_port =     sin.sin_addr.S_un.S_addr = 
      (SOCKET_ERROR == bind(sListen, (PSOCKADDR)&sin,           MessageBox(hWnd, TEXT(), TEXT(), MB_OK |               
     
     WSAAsyncSelect(sListen, hWnd, WM_SOCKET, FD_ACCEPT |     listen(sListen,  
       (GetMessage(&msg, NULL, ,           TranslateMessage(&         DispatchMessage(&  
  
      }