VST instruments in Max/MSP

Hi c74 folks,

I am on a Mac Powerbook 2.16 Ghz Intel Core Duo.

I instantiated matrix~ with 250 inlets and 250 outlets
and it all worked great. When I increased the number
of inlets to 500, Max nicely reported in the Max
window "resizing to 250 signals" and it all worked
great again. However when I increased the number of
outlets to 500, upon turning the DSP on Max crashed
immediately. So it seems that the matrix~ object has a
set limit for the number of inlets that can be
created, but no limit for the number of outlets.

So this leads to my following dev question:

In z_dsp.h I see that there's an enum constant
SYS_MAXSIGS = 250, which is the "number of signal
inlets you can have in an object".

Does this mean that:

1 - when writing an MSP object with a variable number
of inlets I always have to check against the user
error of instantiating the object with more than 250
inlets at creation time?

2 - There's no set limit for the number of outlets,
but there should be because Max/MSP doesn't like too
many inlets as well as too many outlets? If this is
the case what's the limit for the number of audio
outlets I should check for in my MSP objects?

Thanks for shedding any light on this.

- Luigi

--- Sam Macklin wrote:

>
> So how do I control a VST synth in Max using a MIDI
> keyboard? In the MSP reference guide it says that
> if the VST object is running an instrument, the
> conrol input will be ignored.
> maxmsp mailing list
> maxmsp@cycling74.com
> https://cycling74.com/mailman/listinfo/maxmsp
>

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