/// <summary>
/// Called when an asynchronous read operation completes.
/// </summary>
public void OnReadComplete(
int dwTransid,
int hGroup,
int hrMasterquality,
int hrMastererror,
int dwCount,
int[] phClientItems,
object[] pvValues,
short[] pwQualities,
System.Runtime.InteropServices.ComTypes.FILETIME[] pftTimeStamps,
int[] pErrors)
{
try
{
// unmarshal item values.
DaValue[] values = ComDaGroup.GetItemValues(
dwCount,
pvValues,
pwQualities,
pftTimeStamps,
pErrors);
// invoke the callback.
m_group.OnReadComplete(dwTransid, phClientItems, values);
}
catch (Exception e)
{
Utils.Trace(e, "Unexpected error processing OnReadComplete callback.");
}
}
/// <summary>
/// Initializes the object with the containing subscription object.
/// </summary>
public ComDaDataCallback(ComDaGroup group)
{
// save group.
m_group = group;
// create connection point.
m_connectionPoint = new ConnectionPoint(group.Unknown, typeof(OpcRcw.Da.IOPCDataCallback).GUID);
// advise.
m_connectionPoint.Advise(this);
}