WebSocketFrame Properties | 
The WebSocketFrame type exposes the following members.
| Name | Description | |
|---|---|---|
| Mask | 
            WebSocket message mask.
              | |
| Opcode | 
            WebSocket message opcode.
              | |
| PayloadData | 
            WebSocket message payload data.
            If the opcode is 1, this is a text message and payloadData is a UTF-8 string.
            If the opcode isn't 1, then payloadData is a base64 encoded string representing binary data.
              |