public static OPCITEMVQT[] CreateOpcItemVQT(IList <OpcDaVQT> values)
{
var vqts = new OPCITEMVQT[values.Count];
for (int i = 0; i < values.Count; i++)
{
OpcDaVQT value = values[i];
vqts[i].bQualitySpecified = false;
if (value.Quality != short.MinValue)
{
vqts[i].bQualitySpecified = true;
vqts[i].wQuality = value.Quality;
}
vqts[i].bTimeStampSpecified = false;
if (value.Timestamp != DateTimeOffset.MinValue)
{
vqts[i].bTimeStampSpecified = true;
vqts[i].ftTimeStamp = FileTimeConverter.ToFileTime(value.Timestamp);
}
vqts[i].vDataValue = value.Value;
}
return(vqts);
}
public HRESULT[] WriteVQT(IList <string> itemIds, IList <OpcDaVQT> values)
{
if (itemIds.Count != values.Count)
{
throw new ArgumentException("Invalid size of values", "values");
}
var vqts = new OPCITEMVQT[values.Count];
for (int i = 0; i < values.Count; i++)
{
OpcDaVQT opcItemValue = values[i];
vqts[i].bQualitySpecified = false;
if (opcItemValue.Quality != short.MinValue)
{
vqts[i].bQualitySpecified = true;
vqts[i].wQuality = opcItemValue.Quality;
}
vqts[i].bTimeStampSpecified = false;
if (opcItemValue.Timestamp != DateTimeOffset.MinValue)
{
vqts[i].bTimeStampSpecified = true;
vqts[i].ftTimeStamp = FileTimeConverter.ToFileTime(opcItemValue.Timestamp);
}
vqts[i].vDataValue = opcItemValue.Value;
}
string[] pszItemIDs = itemIds.ToArray();
var ppErrors = new HRESULT[pszItemIDs.Length];
DoComCall(ComObject, "IOPCItemIO::WriteVQT",
() => ComObject.WriteVQT(pszItemIDs.Length, pszItemIDs, vqts, out ppErrors), pszItemIDs.Length, pszItemIDs);
return(ppErrors);
}
