MFC 对话框控件自适应

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

h文件中：
afx_msg void OnSize(UINT nType, int cx, int cy);

void ResizeUI();

vector<CRect> m_vec_rect_;

 

cpp文件中：

1、

BEGIN_MESSAGE_MAP(CDlgStatistics, CBCGPDialog)
ON_WM_SIZE()

 

2、

BOOL CDlgStatistics::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();
	}    

}

　　

 

3、

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

void CDlgStatistics::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;
		}
	}
}