(Engine-Level Function)
| Description: | Decodes Protobuf serialized data. |
| Returns: | VTScada data structures representing the message. |
Usage:  |
Script Only. |
| Function Groups: | Protobuf |
| Related to: | ProtobufInstantiate | ProtobufEncode | ProtobufParse |
| Format: |
ProtobufDecode(ProtobufHandle, MessageTypeName, EncodedString[, NoOptionalDefaulting]) |
| Parameters: |
| ProtobufHandle |
| Protobuf handle generated by ProtobufParse |
| MessageTypeName |
| Message type from ProtobufHandle's proto file |
| EncodedString |
| Protocol buffer to decode |
| NoOptionalDefaulting |
| Optional Boolean. Defaults to FALSE when unspecified or invalid. When TRUE, fields in a Protobuf message defined as optional and not present in the message are not given a default value when decoded. |
| Comments: |
When decoding messages with optional fields (note that in Protobuf version 3 all fields are optional) the default value will be used if it is absent from the encoded message. An exception to this is fields defined within a oneof where no default values will be used.
Decoding and encoding of proto2 groups is not supported. |
Example:
See: ProtobufInstantiate
