method ElementCount.
ERROR: Syntax information about IElementHelper.ElementCount may not be in D:\ArcGIS\DotNet\ESRI.ArcGIS.SystemUtility.dll
[C++]
HRESULT get_ElementCount(
BSTR sourceDoc,
long* count
);
[C++]Parameters
sourceDoc [in] sourceDoc is a parameter of type BSTR count [out, retval] count is a parameter of type long