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CListCtrl::GetItemData
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CListCtrl::GetItemData

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

DWORD_PTR GetItemData(
   int nItem 
) const;

nItem

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

A 32-bit application-specific value associated with the specified item.

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


	// If any item's data is equal to zero then reset it to -1.
	for (int i=0; i < m_myListCtrl.GetItemCount(); i++)
	{
		if (m_myListCtrl.GetItemData(i) == 0)
		{
			m_myListCtrl.SetItemData(i, (DWORD) -1);
		}
	}


Header: afxcmn.h

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