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IsEncoded

property IsEncoded: Boolean read write;

Example​

procedure ReportLegacyEncodedFlag(var Value: Variant);
var
  Msg: TIdMessage;
begin
  Msg := Email;
  if Msg = nil then Exit;

  Value := Msg.IsEncoded;
end;

Usage​

IsEncoded exposes a retained legacy Boolean field that current Velox message parsing, generation and transport code does not consume.

Additional Technical Info​

IsEncoded is a legacy read/write field retained in TIdMessage and exposed to PascalScript. In the current Velox product source and bundled Indy protocol code, no executable message path reads it to choose behavior, sets it after parsing/encoding, or clears it.

The field begins False through normal object zero-initialization. Clear, ClearHeader, load, header processing, generation and save/send do not reset or consult it. If a script writes True, the value persists on that message until another script changes it or the object is destroyed, but Body, headers, parts and wire output are unaffected.

Old source comments describe an intended raw-message distinction involving this flag, but that design is not implemented by the current code. Do not infer that True means the current Body is encoded, raw, decoded or safe to retransmit.

Use NoDecode to bypass receive-time MIME/transfer decoding and NoEncode to bypass normal generated output. Inspect ContentTransferEncoding, Encoding and parts for actual message state, while respecting their documented normalization and parsing behavior.

This property is also unrelated to the separate read-only IsEncoded field on individual message parts. Treat the message-level flag as compatibility state, not a processing control. The example reads it for diagnostics and was not runtime-tested.

External references

Created 2026-07-15