AVEVA Enterprise SCADA PubSub API Reference

Position Property

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Position Property

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Last UpdatedApr 08, 2026
1 minute read

HMI and SCADA

Gets or sets the current read position within the underlying PubSub message data buffer.

Syntax

public int Position {get; set;}

public:
property int Position {
   int get();
   void set (    int value);
}

Example

Rewind the position to the start of the underlying PubSub message data buffer:

var messageBuilder = new PubSubMessageBuilder(); var message = messageBuilder.Write(Int32.MaxValue); message.GetInt32(); message.Position = 0; message.GetInt32();

var messageBuilder = new PubSubMessageBuilder();
var message = messageBuilder.Write(Int32.MaxValue);
            
message.GetInt32();
message.Position = 0;
message.GetInt32();

Rewind the position to re-read the last value:

var messageBuilder = new PubSubMessageBuilder(); var message = messageBuilder.Write(Int32.MaxValue); message.GetInt32(); message.Position -= PubSubMessage.DataTypeSize + sizeof(Int32); message.GetInt32();

var messageBuilder = new PubSubMessageBuilder();
var message = messageBuilder.Write(Int32.MaxValue);
            
message.GetInt32();
message.Position -= PubSubMessage.DataTypeSize + sizeof(Int32);
message.GetInt32();

AVEVA Enterprise SCADA PubSub API Reference