public void OnReadModifiedComplete(int dwTransactionID, int hrStatus, int dwNumItems, OPCHDA_MODIFIEDITEM[] pItemValues, int[] phrErrors)
{
try
{
lock (this)
{
Request request = (Request)this.m_requests[dwTransactionID];
if (request != null)
{
ModifiedValueCollection[] results = new ModifiedValueCollection[pItemValues.Length];
for (int i = 0; i < pItemValues.Length; i++)
{
results[i] = OpcCom.Hda.Interop.GetModifiedValueCollection(pItemValues[i], false);
results[i].ServerHandle = pItemValues[i].hClient;
results[i].ResultID = OpcCom.Interop.GetResultID(phrErrors[i]);
}
if (request.InvokeCallback(results))
{
this.m_requests.Remove(request.RequestID);
}
}
}
}
catch (Exception exception)
{
this.HandleException(dwTransactionID, exception);
}
}
/// <summary>
/// Unmarshals and deallocates an array of OPCHDA_MODIFIEDITEM structures.
/// </summary>
internal static ModifiedValueCollection[] GetModifiedValueCollections(ref IntPtr pInput, int count, bool deallocate)
{
ModifiedValueCollection[] output = null;
if (pInput != IntPtr.Zero && count > 0)
{
output = new ModifiedValueCollection[count];
IntPtr pos = pInput;
for (int ii = 0; ii < count; ii++)
{
output[ii] = GetModifiedValueCollection(pos, deallocate);
pos = (IntPtr)(pos.ToInt64() + Marshal.SizeOf(typeof(OpcRcw.Hda.OPCHDA_MODIFIEDITEM)));
}
if (deallocate)
{
Marshal.FreeCoTaskMem(pInput);
pInput = IntPtr.Zero;
}
}
return(output);
}
/// <summary>
/// Unmarshals and deallocates an OPCHDA_MODIFIEDITEM structure.
/// </summary>
internal static ModifiedValueCollection GetModifiedValueCollection(OpcRcw.Hda.OPCHDA_MODIFIEDITEM input, bool deallocate)
{
ModifiedValueCollection output = new ModifiedValueCollection();
output.ClientHandle = input.hClient;
object[] values = OpcCom.Interop.GetVARIANTs(ref input.pvDataValues, input.dwCount, deallocate);
DateTime[] timestamps = OpcCom.Interop.GetFILETIMEs(ref input.pftTimeStamps, input.dwCount, deallocate);
int[] qualities = OpcCom.Interop.GetInt32s(ref input.pdwQualities, input.dwCount, deallocate);
DateTime[] modificationTimes = OpcCom.Interop.GetFILETIMEs(ref input.pftModificationTime, input.dwCount, deallocate);
int[] editTypes = OpcCom.Interop.GetInt32s(ref input.pEditType, input.dwCount, deallocate);
string[] users = OpcCom.Interop.GetUnicodeStrings(ref input.szUser, input.dwCount, deallocate);
for (int ii = 0; ii < input.dwCount; ii++)
{
ModifiedValue value = new ModifiedValue();
value.Value = values[ii];
value.Timestamp = timestamps[ii];
value.Quality = new Opc.Da.Quality((short)(qualities[ii] & 0x0000FFFF));
value.HistorianQuality = (Opc.Hda.Quality)((int)(qualities[ii] & 0xFFFF0000));
value.ModificationTime = modificationTimes[ii];
value.EditType = (Opc.Hda.EditType)editTypes[ii];
value.User = users[ii];
output.Add(value);
}
return(output);
}
internal static ModifiedValueCollection GetModifiedValueCollection(OPCHDA_MODIFIEDITEM input, bool deallocate)
{
ModifiedValueCollection values = new ModifiedValueCollection {
ClientHandle = input.hClient
};
object[] objArray = OpcCom.Interop.GetVARIANTs(ref input.pvDataValues, input.dwCount, deallocate);
DateTime[] timeArray = OpcCom.Interop.GetFILETIMEs(ref input.pftTimeStamps, input.dwCount, deallocate);
int[] numArray = OpcCom.Interop.GetInt32s(ref input.pdwQualities, input.dwCount, deallocate);
DateTime[] timeArray2 = OpcCom.Interop.GetFILETIMEs(ref input.pftModificationTime, input.dwCount, deallocate);
int[] numArray2 = OpcCom.Interop.GetInt32s(ref input.pEditType, input.dwCount, deallocate);
string[] strArray = OpcCom.Interop.GetUnicodeStrings(ref input.szUser, input.dwCount, deallocate);
for (int i = 0; i < input.dwCount; i++)
{
ModifiedValue value2 = new ModifiedValue {
Value = objArray[i],
Timestamp = timeArray[i],
Quality = new Opc.Da.Quality((short)(numArray[i] & 0xffff)),
HistorianQuality = ((Opc.Hda.Quality)numArray[i]) & ((Opc.Hda.Quality)(unchecked ((int)0xffff0000L))),
ModificationTime = timeArray2[i],
EditType = (EditType)numArray2[i],
User = strArray[i]
};
values.Add((Opc.Hda.ItemValue)value2);
}
return(values);
}
internal static ModifiedValueCollection GetModifiedValueCollection(IntPtr pInput, bool deallocate)
{
ModifiedValueCollection modifiedValueCollection = null;
if (pInput != IntPtr.Zero)
{
modifiedValueCollection = GetModifiedValueCollection((OPCHDA_MODIFIEDITEM)Marshal.PtrToStructure(pInput, typeof(OPCHDA_MODIFIEDITEM)), deallocate);
if (deallocate)
{
Marshal.DestroyStructure(pInput, typeof(OPCHDA_MODIFIEDITEM));
}
}
return(modifiedValueCollection);
}
/// <summary>
/// Unmarshals and deallocates an OPCHDA_MODIFIEDITEM structure.
/// </summary>
internal static ModifiedValueCollection GetModifiedValueCollection(IntPtr pInput, bool deallocate)
{
ModifiedValueCollection output = null;
if (pInput != IntPtr.Zero)
{
object item = Marshal.PtrToStructure(pInput, typeof(OpcRcw.Hda.OPCHDA_MODIFIEDITEM));
output = GetModifiedValueCollection((OpcRcw.Hda.OPCHDA_MODIFIEDITEM)item, deallocate);
if (deallocate)
{
Marshal.DestroyStructure(pInput, typeof(OpcRcw.Hda.OPCHDA_MODIFIEDITEM));
}
}
return(output);
}
/// <summary>
/// Called when an asynchronous read modified request completes.
/// </summary>
public void OnReadModifiedComplete(
int dwTransactionID,
int hrStatus,
int dwNumItems,
OPCHDA_MODIFIEDITEM[] pItemValues,
int[] phrErrors)
{
try
{
lock (this)
{
// lookup request transaction.
Request request = (Request)m_requests[dwTransactionID];
if (request == null)
{
return;
}
// unmarshal results.
ModifiedValueCollection[] results = new ModifiedValueCollection[pItemValues.Length];
for (int ii = 0; ii < pItemValues.Length; ii++)
{
results[ii] = Interop.GetModifiedValueCollection(pItemValues[ii], false);
results[ii].ServerHandle = pItemValues[ii].hClient;
results[ii].ResultID = OpcCom.Interop.GetResultID(phrErrors[ii]);
}
// invoke callback - remove request if all results arrived.
if (request.InvokeCallback(results))
{
m_requests.Remove(request.RequestID);
}
}
}
catch (Exception exception)
{
HandleException(dwTransactionID, exception);
}
}
internal static ModifiedValueCollection[] GetModifiedValueCollections(ref IntPtr pInput, int count, bool deallocate)
{
ModifiedValueCollection[] valuesArray = null;
if ((pInput != IntPtr.Zero) && (count > 0))
{
valuesArray = new ModifiedValueCollection[count];
IntPtr ptr = pInput;
for (int i = 0; i < count; i++)
{
valuesArray[i] = GetModifiedValueCollection(ptr, deallocate);
ptr = (IntPtr)(ptr.ToInt32() + Marshal.SizeOf(typeof(OPCHDA_MODIFIEDITEM)));
}
if (deallocate)
{
Marshal.FreeCoTaskMem(pInput);
pInput = IntPtr.Zero;
}
}
return(valuesArray);
}
