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CListCtrl::SetItemData

Sets the 32-bit application-specific value associated with the item specified by nItem.

BOOL SetItemData( 
   int nItem,
   DWORD_PTR dwData  
);

nItem

Index of the list item whose data is to be set.

dwData

A 32-bit value to be associated with the item.

Nonzero if successful; otherwise 0.

This value is the lParam member of the LVITEM structure, as described in the Windows SDK.

	// Set the data of each item to be equal to its index. 
	for (int i = 0; i < m_myListCtrl.GetItemCount(); i++)
	{
		m_myListCtrl.SetItemData(i, i);
	}

Header: afxcmn.h

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