如何设置子窗口显示在父窗口的位置

Question

如何设置子窗口显示在父窗口的中间，还有如果子窗口的宽度或高度大于父窗口
如何设置子窗口的大小自动适应父窗口大小？

Answer 1

子窗口   pChildWin,父窗口pParentWinRECT   rect;
pChildWin-> GetWindowRect(&rect);
pParentWin-> ScreenToClient(&rect);

Answer 2

Form2 form = new Form2(); 
form.MdiParent = this; 
form.Parent = splitContainer1.Panel2;
form.Left =(this.splitContainer1.Panel2.Width-form.Width) / 2;
form.Top = (this.splitContainer1.Panel2.Height - form.Height) / 2;
this.splitContainer1.Panel2.Controls.Add(form); 
form.Show(); StartPosition 
Location =

Answer 3

写了个简单的实现，还有一些情况没有考虑，LZ可以试着自己修改一下
public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private Form m_ChildForm;        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);
            m_ChildForm = new Form();
            m_ChildForm.MdiParent = this;            ChangeChildFromSize();            m_ChildForm.Show();            ChangeChildFormLocation();
        }        protected override void OnSizeChanged(EventArgs e)
        {
            base.OnSizeChanged(e);
            if (m_ChildForm == null)
                return;            ChangeChildFromSize();
            ChangeChildFormLocation();
        }        private void ChangeChildFromSize()
        {
            if (m_ChildForm.Width > this.ClientSize.Width)
                m_ChildForm.Width = this.ClientSize.Width;
            if (m_ChildForm.Height > this.ClientSize.Height)
                m_ChildForm.Height = this.ClientSize.Height;
        }        private void ChangeChildFormLocation()
        {
            m_ChildForm.Location = new Point(
                (this.ClientSize.Width - m_ChildForm.Width) / 2,
                (this.ClientSize.Height - m_ChildForm.Height) / 2
                );
        }