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On 11 Aug 2012, at 14:29, Richard Henninger wrote:
> I'm working with the csound API and have two questions about best practices
> that I cannot resolve with the documentation:
>
> 1) There seem to be two mechanisms for receiving csound messages: a
> callback and a message buffer. Do they serve different purposes or is one
> old and the other preferred or just use whichever is easier for a host
> program? Also, there is a note about the hostdata object being used by the
> buffer. Does that mean that one should not set/get hostdata when is one is
> also using the message buffer mechanism?
In my opinion, the named bus channel mechanism is the best way to deal with
send csound control and audio data to/from host. With the callback mechanism, the host needs to take care of
channel names and callbacks, so it's more involved.
> 2) For accessing FILE* and vfprintf structures from a c library for
> presentation from a host program to csound, does it matter which runtime dll
> (I'm on Windows7/8 - USE_DOUBLE running win32 on a 64 bit machine) I link
> to? My first instinct is to use the msvcrt.dll provided in csound\bin.
> Should I be linking instead to one of the libg*.dll's? The answer matters
> because I'm actually using pInvoke from .Net rather than a lib*.a/+dll from
> a compiled c program, so the actual dll needs to be declared to pInvoke and
> findable at runtime.
Not sure I understand the question. The choice of standard C library is not a matter that really concerns the API. You
should use whatever lib your build system recommends. I am not sure why there is a msvcrt.dll being distributed with Csound,
but I have the impression it has to do with the host programs supplied. The csound library should dynamically link to whichever
is supplied.
Victor
>
> Thanks for any help in this.
>
> Richard Henninger
>
> Richard Henninger
> 2712 Pembsly Drive
> Vienna, VA 22181
>
> richard@rghmusic.com
> 703 255-7201
>
>
>
>
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>
Dr Victor Lazzarini
Senior Lecturer
Dept. of Music
NUI Maynooth Ireland
tel.: +353 1 708 3545
Victor dot Lazzarini AT nuim dot ie
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