Hello:

Freepascal 3.2.0. Windows 7-32bits

TMyObject=class   private     fDset:TDataset;    function
GetBookmark:TBookmarkStr; ... end;
function TMyObject.GetBookmark:TBookmarkStr; Begin  
result:=FDset.Bookmark; end;

I get this compiling error:
Incompatible types: got "TBytes" expected "AnsiString"

Nevertheless, /TbookmarkStr/ documentation example assigns bookmark property to a TBookmarkStr variable
https://www.freepascal.org/docs-html/fcl/db/tdataset.bookmark.html

I have considered to convert the TBytes to AnsiString, but instead to doing a research about AnsiString internals, or creating a function that copies bytes in a loop, I supposed that there was already a function to do that. I found BytesOf
https://www.freepascal.org/docs-html/rtl/sysutils/bytesof.html The abstract is  "Return the bytes in a string", when in fact, according with the text below,  it does the opposite, returns the string in an array of bytes.

Is there any function that move the bytes to an AnsiString?

AFAICS there is only
https://www.freepascal.org/docs-html/rtl/sysutils/stringof.html L.

The type used for bookmarks changed over time.

You really must use TBookmark.

I have corrected the documentation, it seems the 2 types were switched when I corrected the documentation when the type actually changed. Sorry about that :/

Michael.

So, TbookmarkSr is deprecated and I only have to use TBookmark.

Yes.

Michael.

By the way, BytesOf documentation is also misleading

In what sense ?

Michael.

https://www.freepascal.org/docs-html/rtl/sysutils/bytesof.html The abstract is  "Return the bytes in a string". Probably you can blame my English, but I think it is ambiguous whether  it must be read as

Return (the bytes (in a string))
or
return (the bytes) -> (in a string)

before reading the function declaration, I thought it was the second case.

better something like "Return the bytes OF a string in an array of bytes TBytes"

Thanks for pointing it out, I changed it more or less according to your suggestion.

Michael.