public OpcDaVQTE[] Read(IList<string> itemIds, IList<TimeSpan> maxAge)
{
if (maxAge == null)
maxAge = new TimeSpan[itemIds.Count];
if (itemIds.Count != maxAge.Count)
throw new ArgumentException("Invalid size of maxAge", "maxAge");
int[] intMaxAge = ArrayHelpers.CreateMaxAgeArray(maxAge, itemIds.Count);
string[] pszItemIDs = itemIds.ToArray();
var ppvValues = new object[pszItemIDs.Length];
var ppwQualities = new short[pszItemIDs.Length];
var ppftTimeStamps = new FILETIME[pszItemIDs.Length];
var ppErrors = new HRESULT[pszItemIDs.Length];
DoComCall(ComObject, "IOPCItemIO::Read", () =>
ComObject.Read(pszItemIDs.Length, pszItemIDs, intMaxAge, out ppvValues, out ppwQualities,
out ppftTimeStamps, out ppErrors), pszItemIDs.Length, pszItemIDs,
maxAge);
var result = new OpcDaVQTE[itemIds.Count];
for (int i = 0; i < ppvValues.Length; i++)
{
var vqte = new OpcDaVQTE
{
Value = ppvValues[i],
Quality = ppwQualities[i],
Timestamp = FileTimeConverter.FromFileTime(ppftTimeStamps[i]),
Error = ppErrors[i]
};
result[i] = vqte;
}
return result;
}
public OpcDaVQTE[] Read(IList <string> itemIds, IList <TimeSpan> maxAge)
{
if (maxAge == null)
{
maxAge = new TimeSpan[itemIds.Count];
}
if (itemIds.Count != maxAge.Count)
{
throw new ArgumentException("Invalid size of maxAge", "maxAge");
}
int[] intMaxAge = ArrayHelpers.CreateMaxAgeArray(maxAge, itemIds.Count);
string[] pszItemIDs = itemIds.ToArray();
var ppvValues = new object[pszItemIDs.Length];
var ppwQualities = new short[pszItemIDs.Length];
var ppftTimeStamps = new FILETIME[pszItemIDs.Length];
var ppErrors = new HRESULT[pszItemIDs.Length];
DoComCall(ComObject, "IOPCItemIO::Read", () =>
ComObject.Read(pszItemIDs.Length, pszItemIDs, intMaxAge, out ppvValues, out ppwQualities,
out ppftTimeStamps, out ppErrors), pszItemIDs.Length, pszItemIDs,
maxAge);
var result = new OpcDaVQTE[itemIds.Count];
for (int i = 0; i < ppvValues.Length; i++)
{
var vqte = new OpcDaVQTE
{
Value = ppvValues[i],
Quality = ppwQualities[i],
Timestamp = FileTimeConverter.FromFileTime(ppftTimeStamps[i]),
Error = ppErrors[i]
};
result[i] = vqte;
}
return(result);
}
