On Sun, 15 Jul 2007, Martin Schreiber wrote:
> On Sunday 15 July 2007 01.10, Joost van der Sluis wrote: > > > > Can you specify those? Maybe we can work something out. > > > MSEgui needs an reference counted widestring type on win32 to be as fast as > possible. This is not something decided on the TDataset level, that's an RTL issue. > Another old wish: GetInterface should work for corba style interfaces (Mantis > 6036). Again, an RTL issue. > > > I have a question about the widestrings. I thought that tmsebufdataset > > handles all strings as widestrings. But I can't find any reference to > > that in the code. It would be silly anyways: from the db-engine you'll > > get 8-bytes based strings. And a ftString fields's .asString method will > > return a normal ansistring. The same holds for your code. > > > I needed to use my own TField descendants because I can not modify db.pp . > See > lib/common/msedb.pas, especially tmsestringfield, TField.GetClassDesc does > not workfor them BTW. > The strings are converted from utf8 or current locale encoding to UCS2 after > fetching the data from database and to utf8 or current locale encoding before > sending data to the database in order the string encoding needs not to be > converted while displaying and editing data in MSEgui. > I can say that this concept and the whole MSEide+MSEgui system turned out to > be very successful in commercial database applications. Since Delphi does not have it, and is equally succesful, I doubt this is the reason ? The reason is IMHO that it 'simply works' :-) Michael. _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
