MFC创建非模态对话框并修改CStatic文字

//由IDD_STATUS_DIALOG创建一个对话框
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";
//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();