[PD] [PD-announce] getpatchname

[Jamie Bullock]

On Wed, 12 Jul 2006 20:55:56 -0400 (EDT)
Mathieu Bouchard <matju at artengine.ca> wrote:

> On Wed, 12 Jul 2006, Miller Puckette wrote:
> 
> > On Wed, Jul 12, 2006 at 05:00:46PM +0100, Jamie Bullock wrote:
> >> Also, the external is currently buggy in the sense that it retains the 
> >> patch name from the external's instantiation, so if you rename the 
> >> patch then send a 'bang' message to the object, it will report the 
> >> 'old' patch name. This is because accessing 
> >> canvas_getcurrent()->gl_name from a method call rather than from 
> >> getpatchname_new results in a segfault. I would be interested to know 
> >> why this is....
> >
> > canvas_getcurrrent() is only valid in the context of teh new() routine...
> > you can call it there and save the result in the instance structure if you
> > need to refer back to it (as in this case.)
> 
> Yes. It seems like every GUI object has such a backpointer in its struct, 
> including msg (Ctrl+2), floatatom (Ctrl+3) and symbolatom (Ctrl+4). Why 
> not make it standard and add it to t_text ?
> 

Could you explain what you mean by 'backpointer', Google and Wikipedia aren't throwing up much. I'm just trying to understand why this doesn't work.

TIA,

Jamie