How to resize a list ctrl box?

How can the list control box resize upon the resizing of the dialog box

m_control_list.SetWindowPos()

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* Cao Jiling *
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WINDOWPLCEMENT wn;
m_ListBox.GetWindowPlacement(&wn);
wn.rcNormalPosition.left=
wn.rcNormalPosition.right=
wn.rcNormalPosition.top=
wn.rcNormalPosition.bottom=
m_ListBox.Set WindowPlacement(&wn);

This works.
Chow,