[dileep]

I got an ArgumentException while calling
Marshal.GetNativeVariantForObject(segInfo, resultVar);

The exception detailis {"Value does not fall within the expected range."}


I have a C# struct as follows

[StructLayout(LayoutKind.Sequential)]

publicstructsegmentInfo_st

{ publicint nSegID;

publicint nSegFillOrder;

publicint nSelectFlag;

publicint nGraficDispFlag;

publicint nImgTextDispFlag;

publicint nScalBarDispFlag;

publicint nShutterDispFlag;

publicint nSummaryFlag;

publicint nNoteFlag;

publicArrayList segList;

}



I tried it to convert to VARIENT using Marshal.GetNativeVariantForObject


like
IntPtr resultVar;

segmentInfo_st segInfo = newsegmentInfo_st();

segInfo.nSegID = 1;

int sz = Marshal.SizeOf(typeof(segmentInfo_st));

resultVar = Marshal.AllocCoTaskMem(sz);



Marshal.GetNativeVariantForObject(segInfo, resultVar);

Expecting early help .

Thanks & regards,
Dileep S