/// <summary>
/// retrieves the parent from a handle
/// </summary>
internal AddressSpaceElement GetParent(uint aHandle)
{
if (aHandle == 0)
{
return m_root;
} // end if
OTObjectData parent = new OTObjectData();
IntPtr pParent = Marshal.AllocCoTaskMem(Marshal.SizeOf(parent));
Marshal.StructureToPtr(parent, pParent, false);
if ((uint) EnumResultCode.S_OK != OTBFunctions.OTSGetParent(aHandle, pParent))
{
return null;
} // end if
parent = (OTObjectData) Marshal.PtrToStructure(pParent, typeof (OTObjectData));
Marshal.FreeCoTaskMem(pParent);
AddressSpaceElement elementParent = GetElementFromArray(parent.m_userData);
if (elementParent == null)
{
return m_root;
} // end if
return elementParent;
} // end getParent