MFC实现对话框与控件的自适应调节

2025/2/7 0:11:53 来源：https://blog.csdn.net/luo_aiyang/article/details/142216536 浏览: 次关键词：MFC实现对话框与控件的自适应调节

一.对话框属性设置

先将对话框的Border属性由Dialog Frame设置为Resizing。

二.添加消息处理函数

类向导 -> 消息（WM-SIZE）添加处理函数->void COnshowDlg::OnSize(UINT nType, int cx, int cy)。

三.添加代码

在.h文件中声明：

void ResizeUI();vector<CRect> m_vec_rect_;

源文件：

BOOL COnshowDlg::OnInitDialog()
{CBCGPDialog::OnInitDialog();//获取区域CRect rect;GetWindowRect(&rect);m_vec_rect_.push_back(rect);CWnd* pWnd = GetWindow(GW_CHILD);//获取子窗体 while(pWnd){pWnd->GetWindowRect(rect);m_vec_rect_.push_back(rect);pWnd = pWnd->GetNextWindow();}   }

void COnshowDlg::OnSize(UINT nType, int cx, int cy)
{CBCGPDialog::OnSize(nType, cx, cy);if(nType != SIZE_MINIMIZED){ResizeUI();}
}

void COnshowDlg::ResizeUI()
{if (m_vec_rect_.size() > 0){CRect rect;GetWindowRect(&rect);ScreenToClient(rect);//第一个保存的是对话框的Rect CRect saveRect = m_vec_rect_[0];//根据当前和之前保存的对话框的宽高求比例 float x = rect.Width() * 1.0f / saveRect.Width();float y = rect.Height() *1.0f/ saveRect.Height();int iSize = m_vec_rect_.size();int idx = 1;ClientToScreen(rect);CRect saveChild; CWnd* pWnd = GetWindow(GW_CHILD); while(pWnd && idx < iSize) {saveChild = m_vec_rect_[idx];//根据比例调整控件上下左右距离对话框的距离 saveChild.left = rect.left + (saveChild.left - saveRect.left)*x;saveChild.right = rect.right + (saveChild.right - saveRect.right)*x;saveChild.top = rect.top + (saveChild.top - saveRect.top)*y;saveChild.bottom = rect.bottom + (saveChild.bottom - saveRect.bottom)*y;ScreenToClient(saveChild);pWnd->MoveWindow(saveChild);pWnd = pWnd->GetNextWindow();++idx;}}
}