使用API创建窗口

// 新建一个窗口，其消息循环负责处理BYHX消息，有状态改变时直接Post到界面
 HWND parent_hWnd =(HWND)pPrinter->m_byhxHandle;//GetForegroundWindow();
 HINSTANCE parent_hInst =GetModuleHandle(NULL);
 WNDCLASSEX wcex0 ={  sizeof(WNDCLASSEX),  CS_HREDRAW | CS_VREDRAW,
  BYHXMessageProc, 0,  0,    parent_hInst,
  LoadIcon(NULL,IDI_INFORMATION),    LoadCursor(NULL, IDC_ARROW),
  (HBRUSH)GetStockObject(BLACK_BRUSH), NULL, _T("Window0"), NULL
 };
 RegisterClassEx( &wcex0 );
 pPrinter->m_hwndBYHXProc = CreateWindow( _T("Window0"), _T("Window0"), WS_OVERLAPPEDWINDOW|WS_CHILD, 0, 0, 0, 0,parent_hWnd, NULL,wcex0.hInstance, NULL );
 if (!pPrinter->m_hwndBYHXProc )
 {
  ErrorTrace(DEBUG_FUNC,pPrinter->m_iDebug_Level,_T("消息循环创建失败！\n"));
  return 1;
 }
 ShowWindow(pPrinter->m_hwndBYHXProc, SW_HIDE );
 WorkTrace(DEBUG_FUNC,pPrinter->m_iDebug_Level,_T("Message Window: %d\n"),pPrinter->m_hwndBYHXProc);
 UpdateWindow( pPrinter->m_hwndBYHXProc );
 UnregisterClass( _T("Window0"), wcex0.hInstance );
 if( !SetMessageWindow((IntPtr)pPrinter->m_hwndBYHXProc,pPrinter->m_byhxwParam))
 {
#ifdef _DEBUG
  iResult = GetBoardError();
#endif
  iResult = GetBoardStatus();
  ErrorTrace(DEBUG_FUNC,pPrinter->m_iDebug_Level,_T("Global_BYHXMessageThread SetMessageWindow Error!\n"));
  return 1;
 }
 // 在线程中创建一个消息循环DEBUG_FUNC,theApp.m_iDebug_Level,
 WorkTrace(DEBUG_FUNC,pPrinter->m_iDebug_Level,_T("Global_BYHXMessageThread create message loop\n"));
 MSG msg;
 PeekMessage(&msg,pPrinter->m_hwndBYHXProc,NULL,NULL,PM_NOREMOVE); 
 while (1)
 {
  GetMessage(&msg,pPrinter->m_hwndBYHXProc,0,0);
  if ((msg.message == WM_QUIT) || (msg.message == WM_CLOSE))
  {
   break;
  }
  pPrinter->Status_Refresh(msg.wParam,msg.lParam);
 }