internal static object MarshalPropertyValue(PropertyID propertyID, object input)
{
if (input == null)
{
return(null);
}
try
{
if (propertyID == Property.DATATYPE)
{
return((short)OpcCom.Interop.GetType((System.Type)input));
}
if (propertyID == Property.ACCESSRIGHTS)
{
switch (((accessRights)input))
{
case accessRights.readable:
return(1);
case accessRights.writable:
return(2);
case accessRights.readWritable:
return(3);
}
return(null);
}
if (propertyID == Property.EUTYPE)
{
switch (((euType)input))
{
case euType.noEnum:
return(OPCEUTYPE.OPC_NOENUM);
case euType.analog:
return(OPCEUTYPE.OPC_ANALOG);
case euType.enumerated:
return(OPCEUTYPE.OPC_ENUMERATED);
}
return(null);
}
if (propertyID == Property.QUALITY)
{
Quality quality = (Quality)input;
return(quality.GetCode());
}
if (!(propertyID == Property.TIMESTAMP) || (input.GetType() != typeof(DateTime)))
{
return(input);
}
DateTime time = (DateTime)input;
if (time != DateTime.MinValue)
{
return(time.ToUniversalTime());
}
return(time);
}
catch
{
}
return(input);
}
