FindWindowEx(pMdi->m_hWnd,NULL,NULL,_T("Drawing1.dwg")); //根据需要修改要查找的窗体标题,打开的图纸往往在标题里包含文件名,这样就可以知道该排哪个窗体了
::ShowWindow...(h_pSub1,SW_NORMAL);
::SetWindowPos(h_pSub1,NULL,0,0,rect.right/2,rect.bottom,SWP_SHOWWINDOW);
HWND...h_pSub2=::FindWindowEx(pMdi->m_hWnd,NULL,NULL,_T("Drawing2.dwg"));
::ShowWindow (h_pSub2,SW_NORMAL);...::SetWindowPos(h_pSub2,NULL,rect.right/2,0,rect.right/2,rect.bottom,SWP_SHOWWINDOW);