Use the HighLightItem event to notify your application that an item is highlighted. The HighLightItem event occurs when cursor hovers the item. The HighlightItemType property specifies the way how the control marks the highlighted item. Use the ForeColor property to specify the item's foreground color.

The following VB sample bolds the highlighted item:

Private Sub ListBar1_HighLightItem(ByVal OldItem As EXLISTBARLibCtl.IItem, ByVal NewItem As EXLISTBARLibCtl.IItem)
    If Not OldItem Is Nothing Then
        OldItem.Bold = False
    End If
    If Not NewItem Is Nothing Then
        NewItem.Bold = True
    End If
End Sub

The following C++ sample bolds the highlighted item:

void OnHighLightItemListbar1(LPDISPATCH OldItem, LPDISPATCH NewItem) 
{
	CItem oldItem( OldItem ); oldItem.m_bAutoRelease = FALSE;
	CItem newItem( NewItem ); newItem.m_bAutoRelease = FALSE;
	if ( oldItem.m_lpDispatch != NULL )
		oldItem.SetBold( FALSE );
	if ( newItem.m_lpDispatch != NULL )
		newItem.SetBold( TRUE );
}

The following VB.NET sample bolds the highlighted item:

Private Sub AxListBar1_HighLightItem(ByVal sender As Object, ByVal e As AxEXLISTBARLib._IListBarEvents_HighLightItemEvent) Handles AxListBar1.HighLightItem
    If Not e.oldItem Is Nothing Then
        e.oldItem.Bold = False
    End If
    If Not e.newItem Is Nothing Then
        e.newItem.Bold = True
    End If
End Sub

The following C# sample bolds the highlighted item:

private void axListBar1_HighLightItem(object sender, AxEXLISTBARLib._IListBarEvents_HighLightItemEvent e)
{
	if (e.oldItem != null)
		e.oldItem.Bold = false;
	if (e.newItem != null)
		e.newItem.Bold = true;
}

The following VFP sample bolds the highlighted item:

*** ActiveX Control Event ***
LPARAMETERS olditem, newitem

If !isnull(OldItem)
    OldItem.Bold = .f.
EndIf
If !isnull(NewItem)
    NewItem.Bold = .t.
EndIf