使控件和MFC窗口一起最大最小化

来源：互联网发布：淘宝联盟自己买自己的编辑：程序博客网时间：2024/04/30 07:42

1.选中对话框，右键-》属性-》消息，添加WM_SIZE函数。

2.在对话框类头文件.h里面添加：

void ReSize();POINT old;

3.在初始化函数OnInitDialog()中添加；

GetClientRect(&m_rect);old.x = m_rect.right - m_rect.left;old.y = m_rect.bottom - m_rect.top;//ShowWindow(SW_SHOWMAXIMIZED);//初始化为最大窗口

4.Resize函数实现：

void Copencv_mfc_showDlg::ReSize(){float fsp[2];POINT Newp; //获取现在对话框的大小CRect recta;GetClientRect(&recta);     //取客户区大小  Newp.x = recta.right - recta.left;Newp.y = recta.bottom - recta.top;fsp[0] = (float)Newp.x / old.x;fsp[1] = (float)Newp.y / old.y;CRect Rect;int woc;CPoint OldTLPoint, TLPoint; //左上角CPoint OldBRPoint, BRPoint; //右下角HWND  hwndChild = ::GetWindow(m_hWnd, GW_CHILD);  //列出所有控件  while (hwndChild){woc = ::GetDlgCtrlID(hwndChild);//取得IDGetDlgItem(woc)->GetWindowRect(Rect);ScreenToClient(Rect);OldTLPoint = Rect.TopLeft();TLPoint.x = long(OldTLPoint.x*fsp[0]);TLPoint.y = long(OldTLPoint.y*fsp[1]);OldBRPoint = Rect.BottomRight();BRPoint.x = long(OldBRPoint.x *fsp[0]);BRPoint.y = long(OldBRPoint.y *fsp[1]);Rect.SetRect(TLPoint, BRPoint);GetDlgItem(woc)->MoveWindow(Rect, TRUE);hwndChild = ::GetWindow(hwndChild, GW_HWNDNEXT);}old = Newp;}

5.在OnSize函数中添加如下代码：

if (nType == SIZE_RESTORED || nType == SIZE_MAXIMIZED){ReSize();}

最大最小化窗口时，控件就会随着改变大小了。

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