PVS-Studio warning V220 for NetXMS

BOOL SortItems(_In_ PFNLVCOMPARE pfnCompare,
               _In_ DWORD_PTR dwData);

void CLastValuesView::OnListViewColumnClick(....)
{
  ....
  m_wndListCtrl.SortItems(CompareItems, (DWORD)this);
  ....
}

This suspicious code was found in NetXMS project by PVS-Studio static code analyzer.
Warning message is:
V220 Suspicious sequence of types castings: memsize -> 32-bit integer -> memsize. The value being casted: 'this'. lastvaluesview.cpp 716

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