John MacCallum

I'm having some trouble getting information about the parentpatcher of an object in a subpatcher.

If I have an object in a subpatcher or an abstraction and it calls jpatcher_get_parentpatcher(), I get a NULL pointer. However, if I open the subpatcher window and instantiate the object again, I get the parentpatcher's address.

Output for a normal object in the top level patcher:

Output for an object in an abstraction called 'abstraction':

Output for an object in a subpatcher called 'foo':

When I open the subpatcher called 'foo' and make a copy of the object with the window open, everything works fine:

Any thoughts on this? Is it that I'm doing something wrong or is there a bug in jpatcher_get_parentpatcher()? I'd really appreciate any suggestions about how to do this properly or, if indeed it is a bug, a possible workaround.

If I have an object in a subpatcher or an abstraction and it calls jpatcher_get_parentpatcher(), I get a NULL pointer.  However, if I open the subpatcher window and instantiate the object again, I get the parentpatcher's address.

	t_patcher *patcher, *ppatcher;
	t_box *box;
	object_obex_lookup(x, gensym("

patcher address: 0x18589ff0
patcher name: cmmjl_test.maxhelp
box = 0x0
parent address: 0x0

patcher address: 0x185a6fe0
patcher name: abstraction
box = 0x0
parent address: 0x0

patcher address: 0x185be660
patcher name:
box = 0x0
parent address: 0x0

patcher address: 0x185be660
patcher name: foo
box = 0x185e0bc0
parent address: 0x18589ff0

Any thoughts on this?  Is it that I'm doing something wrong or is there a bug in jpatcher_get_parentpatcher()?  I'd really appreciate any suggestions about how to do this properly or, if indeed it is a bug, a possible workaround.

jpatcher_get_parentpatcher

On Jan 14, 2009, at 2:46 PM, John MacCallum wrote:

> I'm having some trouble getting information about the parentpatcher 

Sounds like you might be calling this in your object constructor, 

before the patcher has finished loading (and before these patcher 

attributes have been set). You'll need to cache #P in your constructor 

and then call after the object has been instantiated (say in loadbang, 

> I'm having some trouble getting information about the parentpatcher  
> of an object in a subpatcher.

Sounds like you might be calling this in your object constructor,  
before the patcher has finished loading (and before these patcher  
attributes have been set). You'll need to cache #P in your constructor  
and then call after the object has been instantiated (say in loadbang,  
or response to a bang message, etc.).