VC++ 跟随父窗口调整控件大小

VC++之根据对话框大小调整控件大小

1、在对话框类中加入成员变量CRect m_rect;用于保存对话框大小变化前的大小；

2、在对话框的OnInitDialog()函数中获取对话框创建时的大小：GetClientRect(&m_rect);

3、在WM_SIZE的响应函数OnSize()中加入以下代码：

1：private:

CRect m_rect;

2：GetClientRect(&m_rect);

3：

void CButtonDlg::modify(CWnd* pWnd,int cx,int cy)

{

if (pWnd)

{

CRect rect; //获取控件变化前大小

pWnd->GetWindowRect(&rect);

ScreenToClient(&rect); //将控件大小转换为在对话框中得区域坐标

//cx/m_rect.Width()为对话框在横向的变化比例

rect.left = rect.left * cx/m_rect.Width();

rect.right = rect.right * cx/m_rect.Width();

rect.top = rect.top * cy/m_rect.Height();

rect.bottom = rect.bottom * cy/m_rect.Height();

pWnd->MoveWindow(rect);

}

}

void CButtonDlg::OnSize(UINT nType, int cx, int cy)

{

CDialog::OnSize(nType, cx, cy);

CWnd* pWnd1 = GetDlgItem(IDC_BUTTON1);

CWnd* pWnd2 = GetDlgItem(IDC_BUTTON2);

CWnd* pWnd3 = GetDlgItem(IDC_BUTTON3);

CWnd* pWnd4 = GetDlgItem(IDC_BUTTON4);

CWnd* pWnd5 = GetDlgItem(IDC_BUTTON5);

modify(pWnd1,cx,cy);

modify(pWnd2,cx,cy);

modify(pWnd3,cx,cy);

modify(pWnd4,cx,cy);

modify(pWnd5,cx,cy);

GetClientRect(&m_rect);//获取新的对话框的大小

}