[fpc-pascal] FPC 3.x for Windows and code page conversion
Michael Van Canneyt
michael at freepascal.org
Mon Nov 23 18:08:48 CET 2015
On Mon, 23 Nov 2015, Lubos Pintes wrote:
> Thanks for replies, I will try to explain this in other way:
> My system code page is windows-1250. When a string is sent to a COM
> component, it is somehow converted to UTF-16. Thus FPC knows how to do
> the conversion. Now I know that I am receiving text in UTF-8. Thus I
> called UTF8ToANSI to uselessly convert the UTF-8 to ANSI and then FPC
> converted it to UTF-16 to make COM happy.
Do not convert to Ansi.
You should use unicodestring or widestring variables, and send that to COM.
> Although it worked well in many cases, a data loss may occur.
> So to reformulate this question, how to avoid this useless conversion
> step? I thought that setting the default code page to UTF-8 just do the
COM only works with UTF16. The best way is to declare all strings that you
intend to send to COM to Widestring or UnicodeString.
More information about the fpc-pascal