public Opc.Ae.Attribute[] QueryEventAttributes(int eventCategory)
{
lock (this)
{
if (m_server == null)
{
throw new NotConnectedException();
}
int pdwCount = 0;
IntPtr ppdwAttrIDs = IntPtr.Zero;
IntPtr ppszAttrDescs = IntPtr.Zero;
IntPtr ppvtAttrTypes = IntPtr.Zero;
try
{
((IOPCEventServer)m_server).QueryEventAttributes(eventCategory, out pdwCount, out ppdwAttrIDs, out ppszAttrDescs, out ppvtAttrTypes);
}
catch (Exception e)
{
throw OpcCom.Interop.CreateException("IOPCEventServer.QueryEventAttributes", e);
}
if (pdwCount == 0)
{
return(new Opc.Ae.Attribute[0]);
}
int[] int32s = OpcCom.Interop.GetInt32s(ref ppdwAttrIDs, pdwCount, deallocate: true);
string[] unicodeStrings = OpcCom.Interop.GetUnicodeStrings(ref ppszAttrDescs, pdwCount, deallocate: true);
short[] int16s = OpcCom.Interop.GetInt16s(ref ppvtAttrTypes, pdwCount, deallocate: true);
Opc.Ae.Attribute[] array = new Opc.Ae.Attribute[pdwCount];
for (int i = 0; i < pdwCount; i++)
{
array[i] = new Opc.Ae.Attribute();
array[i].ID = int32s[i];
array[i].Name = unicodeStrings[i];
array[i].DataType = OpcCom.Interop.GetType((VarEnum)int16s[i]);
}
return(array);
}
}
public Opc.Ae.Attribute[] QueryEventAttributes(int eventCategory)
{
lock (this)
{
if (base.m_server == null)
{
throw new NotConnectedException();
}
int pdwCount = 0;
IntPtr zero = IntPtr.Zero;
IntPtr ppszAttrDescs = IntPtr.Zero;
IntPtr ppvtAttrTypes = IntPtr.Zero;
try
{
((IOPCEventServer) base.m_server).QueryEventAttributes(eventCategory, out pdwCount, out zero, out ppszAttrDescs, out ppvtAttrTypes);
}
catch (Exception exception)
{
throw OpcCom.Interop.CreateException("IOPCEventServer.QueryEventAttributes", exception);
}
if (pdwCount == 0)
{
return new Opc.Ae.Attribute[0];
}
int[] numArray = OpcCom.Interop.GetInt32s(ref zero, pdwCount, true);
string[] strArray = OpcCom.Interop.GetUnicodeStrings(ref ppszAttrDescs, pdwCount, true);
short[] numArray2 = OpcCom.Interop.GetInt16s(ref ppvtAttrTypes, pdwCount, true);
Opc.Ae.Attribute[] attributeArray = new Opc.Ae.Attribute[pdwCount];
for (int i = 0; i < pdwCount; i++)
{
attributeArray[i] = new Opc.Ae.Attribute();
attributeArray[i].ID = numArray[i];
attributeArray[i].Name = strArray[i];
attributeArray[i].DataType = OpcCom.Interop.GetType((VarEnum) numArray2[i]);
}
return attributeArray;
}
}
