MFC 对话框最大化时控件也随比例最大化或者还原

1. 在oninitdlg中 计算出当前对话框的大小与最大化后大小，注意要用float值，不然误差很大. CRect rect; ::GetWindowRect(m_hWnd,rect); ScreenToClient(rect); m_nDlgWidth = rect.right - rect.left; m_nDlgHeight = rect.bottom - rect.top; //计算分辨率 m_nWidth = GetSystemMetrics(SM_CXSCREEN); m_nHeight = GetSystemMetrics(SM_CYSCREEN); //计算放大倍数 m_Multiple_width = float(m_nWidth)/float(m_nDlgWidth); m_Mutiple_heith = float(m_nHeight)/float(m_nDlgHeight); change_flag=TRUE;//这个是成员变量bool形，用来判断onsize执行时oninitdlg是否已经执行了 2. 给你对话框添加 onsize消息: void EnviromentConfigDlg::OnSize(UINT nType, int cx, int cy) { CDialog::OnSize(nType, cx, cy); if (change_flag)//如果确定oninitdlg已经调用完毕. {    ReSize(IDC_STATIC1);    ReSize(IDC_TREE_ALARM);    ReSize(IDC_STATIC2);    ReSize(IDC_TREE_CAMERA);    ReSize(IDC_STATIC3);    ReSize(IDC_LIST_TYPE);    ReSize(IDOK);    ReSize(IDC_STATIC4);    ReSize(IDC_LIST_INFO); //恢复放大倍数，并保存 (确保还原时候能够还原到原来的大小) m_Multiple_width = float(1)/ m_Multiple_width ;    m_Mutiple_heith = float(1)/m_Mutiple_heith ; } } 3.刷新控件：根据比例计算控件缩放的大小，然后movewindow 到新矩形上 void EnviromentConfigDlg::ReSize(int nID) { CRect Rect; GetDlgItem(nID)->GetWindowRect(Rect); ScreenToClient(Rect); //计算控件左上角点 CPoint OldTLPoint,TLPoint; OldTLPoint = Rect.TopLeft(); TLPoint.x = long(OldTLPoint.x *m_Multiple_width); TLPoint.y = long(OldTLPoint.y * m_Mutiple_heith ); //计算控件右下角点 CPoint OldBRPoint,BRPoint; OldBRPoint = Rect.BottomRight(); BRPoint.x = long(OldBRPoint.x *m_Multiple_width); BRPoint.y = long(OldBRPoint.y * m_Mutiple_heith ); //移动控件到新矩形 Rect.SetRect(TLPoint,BRPoint); GetDlgItem(nID)->MoveWindow(Rect,TRUE); } 这样，你就可以随心所遇的放大与缩小你的对话框了，控件也跟着比例缩小放大