MFC创建非模态对话框并修改CStatic文字

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//由IDD_STATUS_DIALOG创建一个对话框<br>CDialog* pCheckNetStatusDlg = new CDialog();     pCheckNetStatusDlg->Create(IDD_STATUS_DIALOG, this);     RECT statusWndClientRect, mainWndClientRect, mainWndRect;     pCheckNetStatusDlg->GetClientRect(&statusWndClientRect);     this->GetClientRect(&mainWndClientRect);     this->GetWindowRect(&mainWndRect);     pCheckNetStatusDlg->ShowWindow(SW_SHOW);     pCheckNetStatusDlg->MoveWindow((mainWndClientRect.right - statusWndClientRect.right) / 2 + mainWndRect.left,         (mainWndClientRect.bottom - statusWndClientRect.bottom) / 2 + mainWndRect.top,         statusWndClientRect.right, statusWndClientRect.bottom);     CString strStatus = "当前状态";<br>//修改IDC_STATIC_STATUS的文字     CWnd* pWndStatus = pCheckNetStatusDlg->GetDlgItem(IDC_STATIC_STATUS);     //设置新的文字     pWndStatus->SetWindowText(strStatus);     CDC* pDC = GetDC();     //计算文字长度     CSize sizeStatus = pDC->GetTextExtent(strStatus);     RECT rectStatus;     //得到文字在屏幕上的位置     pWndStatus->GetWindowRect(&rectStatus);     //设置文字位置     rectStatus.left = (rectStatus.left + rectStatus.right) / 2 - sizeStatus.cx / 2;     rectStatus.right = rectStatus.left + sizeStatus.cx;     pCheckNetStatusDlg->ScreenToClient(&rectStatus);     //调整大小     pWndStatus->MoveWindow(&rectStatus);     //刷新窗口 Invalidate()是发送一个命令WM_PAINT来重画窗口, WM_PAINT是优先级比较低的, UpdateWindow是立即重画, 优先级高     pCheckNetStatusDlg->UpdateWindow();