object = Read(propName, propType
Called by the control to read a property from the storage provided by the
ParameterspropName : str
Name of the property to read.propType : int
The type of the object to read. Must be a VT_* Variant Type constant.errorLog=None : PyIErrorLog
The caller's PyIErrorLog object in which the property bag stores any
errors that occur during reads. Can be None in which case the caller is not interested in errors.
The result is a Python object, mapped from a COM VARIANT of type as specified in the propType parameter.