[Gambas-user] A "Callback" function doesn't work.

Jussi Lahtinen jussi.lahtinen at ...626...
Thu Jul 18 17:41:13 CEST 2013


Yeah, I was confused by jack documentation about usage of "word" and I
chose Short...

Jussi


On Thu, Jul 18, 2013 at 6:34 PM, Benoît Minisini <
gambas at ...1...> wrote:

> Le 18/07/2013 17:32, Jussi Lahtinen a écrit :
> >> Uhmm... in ufficiale Jack documention I read:
> >>
> >> *****
> >> typedef enum JackStatus jack_status_t
> >> Status word returned from several JACK operations, formed by OR-ing
> >> together the relevant JackStatus bits.
> >> *****
> >>
> >> and more:
> >>
> >> ********
> >> enum JackStatus
> >>
> >> jack_status_t bits
> >> ********
> >>
> >> ...that:   BITS    What'ld it could be ?
> >>
> >
> >
> > I think Benoit is right about Integer.
> > http://en.wikipedia.org/wiki/Word_%28computer_architecture%29
> >
> > In MS way (the wrong way) it was; word (16bit), dword (32bit) and qword
> > (64bit).
> >
> >
> > Bits refers to the fact that status constants are presented by single
> bit.
> >
> > Example (these are byte constants):
> > Constant A = 1, and in binary 00000001
> > Constant B = 2, and in binary 00000010
> > Constant C = 4, and in binary 00000100
> > Constant D = 8, and in binary 00001000
> >
> > etc.
> >
> > So, one byte size variable can present eight statuses at same time.
> > Example, if variable x has status A and C, it has value 5 = 00000101,
> etc.
> >
> >
> > Jussi
>
> Yep. To use external functions, you must know how C code is translated
> by the compiler. And an 'enum' is translated to an 'int', which is an
> Integer in Gambas.
>
> --
> Benoît Minisini
>
>
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