On 22 janv. 09, at 16:47, Roberto J. Osorio-Goenaga wrote:

> Hello list: > > I am having trouble outputting a string through an outlet. It > outputs once on the first run through, but then ceases to continue > working. > > Below is the culprit section of code, any insight would be greatly > appreciated. > [code] > ---BEGIN CODE--- > > numba = atoi(parsed); > > output = (char *)malloc(strlen("/rh/st 0 4096")); > > sprintf(output, "/rh/st %d 0 > ", calcBoardNo(currentTrack, numba)); > > s->s_name = output; > > free(output); > outlet_anything(x->outlet_1, s, 0, NULL);

In the Max world strings are represented as symbols. You need to output a t_symbol. To create a t_symbol from a C string you can use gensym():

... sprintf(output, "/rh/st %d 0", calcBoardNo(currentTrack, numba));

outlet_anything(x->outlet_1, gensym(output), 0, NULL);

HTH, ej

That worked beautifully...thank you!

Now I'm having a strange issue, in which nothing will be output unless i turn debugging on in Max/MSP. Once this is done, output from my external works, even if I turn off debugging afterward.

I am investigating, and will post my findings for public reference if I am successful.

Best, -R

Problem fixed, though not sure why yet...

First, I had a non-aligned pointer. Took care of that, and the problem persisted.

Not quite certain why, but removing a post() call in the routine eliminated the problem. Do post() and outlet_anything() not get along in the same routine?

In any case, thanks for the help!

-R

On 22 janv. 09, at 19:01, Roberto J. Osorio-Goenaga wrote:

> Problem fixed, though not sure why yet... > > First, I had a non-aligned pointer. Took care of that, and the > problem persisted. > > Not quite certain why, but removing a post() call in the routine > eliminated the problem. Do post() and outlet_anything() not get > along in the same routine?

post() is equivalent to the sprintf() in C, therefore it takes a C string (array of char). outlet_anything() talks to the Max patches, so you have to send t_symbol as the message name (constructed with gensym()), and an array of t_atom for the arguments of the message that you want to output.

HTH, ej