CListBox::DeleteItem

Called by the framework when the user deletes an item from an owner-draw CListBox object or destroys the list box.

virtual void DeleteItem(
   LPDELETEITEMSTRUCT lpDeleteItemStruct 
);

Parameters

• lpDeleteItemStruct
  A long pointer to a Windows DELETEITEMSTRUCT structure that contains information about the deleted item.

Remarks

The default implementation of this function does nothing. Override this function to redraw an owner-draw list box as needed.

See CWnd::OnDeleteItem for a description of the DELETEITEMSTRUCT structure.

Example

// CMyODListBox is my owner-drawn list box derived from CListBox. This 
// example simply frees the item's text. The list box control was created 
// with the following code:
//   m_myODListBox.Create(
//      WS_CHILD|WS_VISIBLE|WS_BORDER|WS_HSCROLL|WS_VSCROLL|
//      LBS_SORT|LBS_MULTIPLESEL|LBS_OWNERDRAWVARIABLE|LBS_WANTKEYBOARDINPUT,
//      CRect(10,250,200,450), pParentWnd, IDC_MYODLISTBOX);
//
void CMyODListBox::DeleteItem(LPDELETEITEMSTRUCT lpDeleteItemStruct)
{
   ASSERT(lpDeleteItemStruct->CtlType == ODT_LISTBOX);
   LPVOID lpszText = (LPVOID) lpDeleteItemStruct->itemData;
   ASSERT(lpszText != NULL);

   free(lpszText);

   CListBox::DeleteItem(lpDeleteItemStruct);
}

Requirements

Header: afxwin.h

See Also

Reference

CListBox Class

Hierarchy Chart

CListBox::CompareItem

CWnd::OnDeleteItem

CListBox::DrawItem

CListBox::MeasureItem

Other Resources

CListBox Members