Tristan

I may be missing something simple, but I can't seem to figure this out from the API documentation or any online search. I want to send an array of integers out the outlet of an external as a list, eg - a message box will receive a list of individual integers all at once. I thought I had it, but it seems that my list is actually just a repetition of a single item from the list - the first value held in the array.

If at all possible, could someone please explain how I can get something like this: myArray[16] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}; to be dumped out an outlet so that a message box connected to that outlet will show this: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15?

As I said, this could be really obvious once I see it, but I'm only beginning to venture into building externals and despite C itself being relatively familiar, this is really confusing the hell out of me.

I may be missing something simple, but I can't seem to figure this out from the API documentation or any online search.  I want to send an array of integers out the outlet of an external as a list, eg - a message box will receive a list of individual integers all at once.  I thought I had it, but it seems that my list is actually just a repetition of a single item from the list - the first value held in the array.

If at all possible, could someone please explain how I can get something like this:   myArray[16] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}; to be dumped out an outlet so that a message box connected to that outlet will show this:  0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15?

external-building-send-an-array-out-an-outlet-as-a-list

I'm out of practice, but for an object I coded(karma~), i needed different types sent out in a list and the basics were that I had to create an array('messlist' below), then set each t_atom element within it, and finally when using 'outlet_list' provided the pointer-address to that array('&messlist'; which gave me warnings of incompatible types in XCode but still worked everytime in Max5,6,and7 so it seems fine).

        t_atom messlist[6];
        atom_setfloat(messlist, (diromessout, 0L, 6, &messlist);


^Instead of doing what I did, however, I'd recommend you take a look here at 'atom_setlong' or more likely, below that, at 'atom_setlong_array' and use that instead(and of course, use 'outlet_list' with that).

https://cycling74.com/sdk/MaxSDK-7.1.0/html/group__atom.html#ga68c9b634425c7e246734ef4ecd911d1c

And here's the master page(starting point) where you can see many of the types of 'atom's(also look in the left column, you'll see the table of contents where you can easily click to investigate more on various 'data types'):

https://cycling74.com/sdk/MaxSDK-7.1.0/html/group__atom.html

Hope it helps, or at least gives you something to research until someone more knowledgeable can come along and give you the definitive answer(sorry i'm no expert).

I'm out of practice, but for an object I coded(karma~), i needed different types sent out in a list and the basics were that I had to create an array('messlist' below), then set each t_atom element within it, and finally when using 'outlet_list' provided the pointer-address to that array('&messlist'; which gave me warnings of incompatible types in XCode but still worked everytime in Max5,6,and7 so it seems fine). 

^Instead of doing what I did, however, I'd recommend you take a look here at 'atom_setlong' or more likely, below that, at 'atom_setlong_array' and use that instead(and of course, use 'outlet_list' with that).
See here:
https://cycling74.com/sdk/MaxSDK-7.1.0/html/group__atom.html#ga68c9b634425c7e246734ef4ecd911d1c

And here's the master page(starting point) where you can see many of the types of 'atom's(also look in the left column, you'll see the table of contents where you can easily click to investigate more on various 'data types'):
https://cycling74.com/sdk/MaxSDK-7.1.0/html/group__atom.html

Hope it helps, or at least gives you something to research until someone more knowledgeable can come along and give you the definitive answer(sorry i'm no expert).
All The Best.


Thanks for the response. Nevermind being an 'expert', whatever it was, you kicked something loose in my head and I have it solved now. So thanks again for that.

It turns out that I had a combination of problems - not least of which was an error in my loop. The other was just some 'atom' typing confusion. Anyway, my first proper (not built out of a book) external is working. Happy days.

Thanks for the response.  Nevermind being an 'expert', whatever it was, you kicked something loose in my head and I have it solved now.  So thanks again for that.  

It turns out that I had a combination of problems - not least of which was an error in my loop.  The other was just some 'atom' typing confusion.  Anyway, my first proper (not built out of a book) external is working.  Happy days.


I'm trying to do this same thing, what I don't understand is how to actually allocate the t_atom array dynamically?

So in the object struct I should probably have 

And according to this Max api documentation probably use this atom_alloc_array :

https://cycling74.com/sdk/MaxSDK-7.1.0/html/group__atom.html#ga5601306b4b76f338501cda586a6c1fde

but that doesn't really make sense to me, like what to do to reallocate/resize? How did you end up doing it Tristan? I think that atom_setlong_array makes sense but I don't understand the allocation process.

I'm trying to do this same thing, what I don't understand is how to actually allocate the t_atom array dynamically?

So in the object struct I should probably have 
t_atom atomList;
And according to this Max api documentation probably use this atom_alloc_array :

https://cycling74.com/sdk/MaxSDK-7.1.0/html/group__atom.html#ga5601306b4b76f338501cda586a6c1fde

but that doesn't really make sense to me, like what to do to reallocate/resize? How did you end up doing it Tristan? I think that atom_setlong_array makes sense but I don't understand the allocation process.

Thanks!


External Building: Send an array out an outlet as a list.