public void OnReadAnnotations(int dwTransactionID, int hrStatus, int dwNumItems, OPCHDA_ANNOTATION[] pAnnotationValues, int[] phrErrors)
{
try
{
lock (this)
{
Request request = (Request)this.m_requests[dwTransactionID];
if (request != null)
{
AnnotationValueCollection[] results = new AnnotationValueCollection[pAnnotationValues.Length];
for (int i = 0; i < pAnnotationValues.Length; i++)
{
results[i] = OpcCom.Hda.Interop.GetAnnotationValueCollection(pAnnotationValues[i], false);
results[i].ServerHandle = pAnnotationValues[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_ANNOTATION structures.
/// </summary>
internal static AnnotationValueCollection[] GetAnnotationValueCollections(ref IntPtr pInput, int count, bool deallocate)
{
AnnotationValueCollection[] output = null;
if (pInput != IntPtr.Zero && count > 0)
{
output = new AnnotationValueCollection[count];
IntPtr pos = pInput;
for (int ii = 0; ii < count; ii++)
{
output[ii] = GetAnnotationValueCollection(pos, deallocate);
pos = (IntPtr)(pos.ToInt64() + Marshal.SizeOf(typeof(OpcRcw.Hda.OPCHDA_ANNOTATION)));
}
if (deallocate)
{
Marshal.FreeCoTaskMem(pInput);
pInput = IntPtr.Zero;
}
}
return(output);
}
/// <summary>
/// Unmarshals and deallocates an OPCHDA_ANNOTATION structure.
/// </summary>
internal static AnnotationValueCollection GetAnnotationValueCollection(OpcRcw.Hda.OPCHDA_ANNOTATION input, bool deallocate)
{
AnnotationValueCollection output = new AnnotationValueCollection();
output.ClientHandle = input.hClient;
DateTime[] timestamps = OpcCom.Interop.GetFILETIMEs(ref input.ftTimeStamps, input.dwNumValues, deallocate);
string[] annotations = OpcCom.Interop.GetUnicodeStrings(ref input.szAnnotation, input.dwNumValues, deallocate);
DateTime[] creationTimes = OpcCom.Interop.GetFILETIMEs(ref input.ftAnnotationTime, input.dwNumValues, deallocate);
string[] users = OpcCom.Interop.GetUnicodeStrings(ref input.szUser, input.dwNumValues, deallocate);
for (int ii = 0; ii < input.dwNumValues; ii++)
{
AnnotationValue value = new AnnotationValue();
value.Timestamp = timestamps[ii];
value.Annotation = annotations[ii];
value.CreationTime = creationTimes[ii];
value.User = users[ii];
output.Add(value);
}
return(output);
}
internal static AnnotationValueCollection GetAnnotationValueCollection(IntPtr pInput, bool deallocate)
{
AnnotationValueCollection annotationValueCollection = null;
if (pInput != IntPtr.Zero)
{
annotationValueCollection = GetAnnotationValueCollection((OPCHDA_ANNOTATION)Marshal.PtrToStructure(pInput, typeof(OPCHDA_ANNOTATION)), deallocate);
if (deallocate)
{
Marshal.DestroyStructure(pInput, typeof(OPCHDA_ANNOTATION));
}
}
return(annotationValueCollection);
}
/// <summary>
/// Unmarshals and deallocates an OPCHDA_ANNOTATION structure.
/// </summary>
internal static AnnotationValueCollection GetAnnotationValueCollection(IntPtr pInput, bool deallocate)
{
AnnotationValueCollection output = null;
if (pInput != IntPtr.Zero)
{
object item = Marshal.PtrToStructure(pInput, typeof(OpcRcw.Hda.OPCHDA_ANNOTATION));
output = GetAnnotationValueCollection((OpcRcw.Hda.OPCHDA_ANNOTATION)item, deallocate);
if (deallocate)
{
Marshal.DestroyStructure(pInput, typeof(OpcRcw.Hda.OPCHDA_ANNOTATION));
}
}
return(output);
}
/// <summary>
/// Called when an asynchronous read annotations request completes.
/// </summary>
public void OnReadAnnotations(
int dwTransactionID,
int hrStatus,
int dwNumItems,
OPCHDA_ANNOTATION[] pAnnotationValues,
int[] phrErrors)
{
try
{
lock (this)
{
// lookup request transaction.
Request request = (Request)m_requests[dwTransactionID];
if (request == null)
{
return;
}
// unmarshal results.
AnnotationValueCollection[] results = new AnnotationValueCollection[pAnnotationValues.Length];
for (int ii = 0; ii < pAnnotationValues.Length; ii++)
{
results[ii] = Interop.GetAnnotationValueCollection(pAnnotationValues[ii], false);
results[ii].ServerHandle = pAnnotationValues[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 AnnotationValueCollection[] GetAnnotationValueCollections(ref IntPtr pInput, int count, bool deallocate)
{
AnnotationValueCollection[] valuesArray = null;
if ((pInput != IntPtr.Zero) && (count > 0))
{
valuesArray = new AnnotationValueCollection[count];
IntPtr ptr = pInput;
for (int i = 0; i < count; i++)
{
valuesArray[i] = GetAnnotationValueCollection(ptr, deallocate);
ptr = (IntPtr)(ptr.ToInt32() + Marshal.SizeOf(typeof(OPCHDA_ANNOTATION)));
}
if (deallocate)
{
Marshal.FreeCoTaskMem(pInput);
pInput = IntPtr.Zero;
}
}
return(valuesArray);
}
internal static AnnotationValueCollection GetAnnotationValueCollection(OPCHDA_ANNOTATION input, bool deallocate)
{
AnnotationValueCollection values = new AnnotationValueCollection {
ClientHandle = input.hClient
};
DateTime[] timeArray = OpcCom.Interop.GetFILETIMEs(ref input.ftTimeStamps, input.dwNumValues, deallocate);
string[] strArray = OpcCom.Interop.GetUnicodeStrings(ref input.szAnnotation, input.dwNumValues, deallocate);
DateTime[] timeArray2 = OpcCom.Interop.GetFILETIMEs(ref input.ftAnnotationTime, input.dwNumValues, deallocate);
string[] strArray2 = OpcCom.Interop.GetUnicodeStrings(ref input.szUser, input.dwNumValues, deallocate);
for (int i = 0; i < input.dwNumValues; i++)
{
AnnotationValue value2 = new AnnotationValue {
Timestamp = timeArray[i],
Annotation = strArray[i],
CreationTime = timeArray2[i],
User = strArray2[i]
};
values.Add(value2);
}
return(values);
}
