空间随着窗体变化而变化的示例

来源：互联网发布：hr软件北森编辑：程序博客网时间：2024/05/16 04:56

用一个对话框去调用另一个对话框，我们在北条调用的对话框下添加如下代码

在头文件下添加：

public:
  CRect m_rect; //添加成员变量
  void SetContralInfo(WORD CtrlId);// 添加成员函数
protected:
     int m_old_cx,m_old_cy;//添加成员变量。来记录原来的大小

CDWordArray m_control_info;

在.cpp下添加

（1）构造函数中初始化

logoview::logoview(CWnd* pParent /*=NULL*/)
: CDialog(logoview::IDD, pParent)
{
m_old_cy = m_old_cx = 0; //初始化成员变量
}

（2）添加两个函数OnSize和OnInitDialog函数，分别在类上添加WM_SIZE和WM_INITDIALOG两个消息就加上了

（3）OnSzie下实现

void logoview::OnSize(UINT nType, int cx, int cy)
{
CDialog::OnSize(nType, cx, cy);
if (cx == 0 || cy == 0)
{
cx = 800;
cy = 600;
}

float dx_percent = (m_old_cx == 0)? 1: (float)((float)cx/(float)m_old_cx);
float dy_percent = (m_old_cx == 0)? 1: (float)((float)cy/(float)m_old_cy);
if (m_old_cx)
{
  CRect WndRect;
  CWnd *pWnd;
  for (int i = 0;i<m_control_info.GetSize();i++)
  {
   pWnd = GetDlgItem(m_control_info[i]);
   if (!pWnd)
   {
    TRACE("Control ID_%d NOT FOUND!!\n",m_control_info[i]);
    continue;
   }
   pWnd->GetWindowRect(&WndRect);
   ScreenToClient(&WndRect);
   WndRect.left = (int)(WndRect.left*dx_percent);
            WndRect.right = (int)(WndRect.right*dx_percent);
   WndRect.bottom = (int)(WndRect.bottom*dx_percent);
   WndRect.top = (int)(WndRect.top*dx_percent);

pWnd->MoveWindow(&WndRect);
}
}
m_old_cx = cx;
m_old_cy = cy;

}

（4）OnInitDialog下加入所有对话框上的控件ID

BOOL logoview::OnInitDialog()
{
CDialog::OnInitDialog();

SetContralInfo(IDC_LIST1);
SetContralInfo(IDC_STATIC_logo );
SetContralInfo(IDOK);
SetContralInfo(IDCANCEL);

return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}

（5）实现添加的成员函数

void logoview::SetContralInfo(WORD CtrlId)
{
m_control_info.Add(CtrlId);
}