15.05.2018 6:54, 'livius' liviuslivius@... [firebird-support] wrote:

> what kind of buffer?

It depends on information in IMessageMetadata.

> I have tried:
> ss: Array[0..199] of Char;
> ss: Array[0..199] of Byte;
> ss: Array[0..199] of AnsiChar;

This is a right declaration for CHAR(200).

> ss: String[200];
>
> with last string[200] i got result prefixed with size byte

Because short strings in Delphi are prefixed with length byte.

--
WBR, SD.