[Gambas-user] Working with .so library
Gianluigi
bagonergi at gmail.com
Fri Jul 26 10:50:31 CEST 2019
Take a look here:
http://www.gambas-it.org/smf/index.php?topic=7165.msg46326#msg46326
Regards
Gianluigi
Il giorno ven 26 lug 2019 alle ore 02:58 Admin <admin at allunix.ru> ha
scritto:
> BTW, can Gambas point to an array? I mean, there's datatype in C called
> bytearray, and some of my .so library's procedures return or request a
> bytearray variable. Gambas can declare a Byte[] but can't VarPtr to it.
> So that's a no, right? Just making sure, it's not that important, but
> maybe there's a way?
>
> 26.06.2019 8:13, Admin пишет:
> > So, I guess that's a no. It's kinda sad, but ok, minor issue.
> >
> > 25.06.2019 15:21, Admin пишет:
> >> Ok, this question I have for a very long time now:
> >> Sometimes I need to recieve a string variable from a library.
> >> Usually it asks me to provide a pointer to a string where it would
> >> store it's output.
> >> Problem is output is usually in WCHAR_T, while the string is always
> >> in UTF-8.
> >> When I provide my strings to a library - it's not a problem, i just
> >> use Conv(MyString, "UTF-8", "WCHAR_T") and it's all ok.
> >> But when I recieve a string from a library I rearly even know the
> >> lenght of the output I expect. But even if I do, that would be a
> >> lenght of a WCAHR_T string, and the size of UTF string would be
> >> defferent.
> >> So in most cases if I recieve a string like this:
> >>
> >> libfptr_get_param_str(fptr, LIBFPTR_PARAM_MODEL_NAME,
> >> VarPtr(KKMmodel), stringsize)
> >>
> >> and then try to
> >>
> >> message(Conv(KKMmodel, "WCHAR_T", "UTF-8"))
> >>
> >> I will get a "bad string conversion".
> >>
> >> And I think it's totally fair, because, ok, I know that the string
> >> will be 18 chars long, but if I make KKMmodel declared as String and
> >> 18 chars long - is it even relevant? It would be 18 UTF8 chars long,
> >> which has nothing to do with the lenght of WCHAR_T string.
> >>
> >> So, is there a way to correctly recieve WCHAR_T strings through
> >> pointers in Gambas?
> >>
> >> 25.06.2019 15:07, Tobias Boege пишет:
> >>> On Tue, 25 Jun 2019, David Silverwood via User wrote:
> >>>>> On Tuesday, June 25, 2019, 09:54:07 AM GMT+2, Benoît Minisini
> >>>>> <g4mba5 at gmail.com> wrote:
> >>>>> Le 25/06/2019 à 05:56, Admin a écrit :
> >>>>>> Ok, answering my own question, it's easier then I thought. Gambas
> >>>>>> actually allows the same enum declaration as C does, I mean I can
> >>>>>> use
> >>>>>> multiple strings despite it's never mentioned in documentation.
> >>>>>> So it's
> >>>>>> basically .h file copy-paste process, nothing more.
> >>>>>>
> >>>>> What is not mentioned in http://gambaswiki.org/lang/enumdecl ?
> >>>> i get a 404 error when trying to access that page?
> >>> There's always a /wiki after the .org, which Benoît forgot.
> >>>
> >>
> >>
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> >>
> >
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