Get data pointer in CListBox's MeasureItem()

Hi,

I implement a list box which has items with variable height, to calculate height of item i need to obtain data attached with it in MeasureItem().

Here is part of code inserting item in list box

INT idx = m_lstBox.AddString(strTxt);
m_lstBox.SetItemDataPtr(idx, pData);

Problem is that MeasureItem() function is called when the string is added, and at that time, data pointer is still not be set so i got bad pointer as result of GetItemDataPtr inside MeasureItem().

How can I set data pointer before MeasureItem call?

Quy

Tags: Windows, Visual Studio, MFC