Use the ItemFromPoint property to get the item over cursor. Use the GroupFromPoint property to retrieve the group from the cursor. Use the Caption property to specify the caption of the item.

The following VB sample displays the caption of the item from the cursor:

Private Sub ExplorerBar1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
    With ExplorerBar1
        Dim i As Item
        Set i = .ItemFromPoint(X / Screen.TwipsPerPixelX, Y / Screen.TwipsPerPixelY)
        If Not i Is Nothing Then
            Debug.Print i.Caption
        End If
    End With
End Sub

The following C++ sample displays the caption of the item from the cursor:

void OnMouseMoveExplorerbar1(short Button, short Shift, long X, long Y) 
{
	CItem item = m_explorerbar.GetItemFromPoint( X, Y );
	if ( item.m_lpDispatch != NULL )
		OutputDebugString( item.GetCaption() );
}

The following VB.NET sample displays the caption of the item from the cursor:

Private Sub AxExplorerBar1_MouseMoveEvent(ByVal sender As Object, ByVal e As AxEXPLORERBARLib._IExplorerBarEvents_MouseMoveEvent) Handles AxExplorerBar1.MouseDownEvent
    With AxExplorerBar1
        Dim i As EXPLORERBARLib.Item = .get_ItemFromPoint(e.x, e.y)
        If Not i Is Nothing Then
            Debug.WriteLine(i.Caption)
        End If
    End With
End Sub

The following C# sample displays the caption of the item from the cursor:

private void axExplorerBar1_MouseMoveEvent(object sender, AxEXPLORERBARLib._IExplorerBarEvents_MouseMoveEvent e)
{
	EXPLORERBARLib.Item i = axExplorerBar1.get_ItemFromPoint(e.x, e.y);
	if (i != null)
		System.Diagnostics.Debug.WriteLine(i.Caption);
}

The following VFP sample displays the caption of the item from the cursor:

*** ActiveX Control Event ***
LPARAMETERS button, shift, x, y

With thisform.ExplorerBar1
    local i
    i = .ItemFromPoint(x , y)
    If !isnull(i)
		with i
	        wait window nowait .Caption
       endwith
    EndIf
EndWith