[PD] opencv motion tracker external HELP!

Martin Peach martin.peach at sympatico.ca
Wed May 30 06:25:10 CEST 2007

Nose Hair wrote:
> I think I figured it out.  It looks like I have to use t_symbol *sym  
> instead of t_symbol sym and the outlet has to be x->outlet_new(x- 
>  >x_outlet0, &*sym).
&*sym is the same as sym.
>   That seemed to work.  The weird problem I am  
> having now it I get an error with the return(void *)x; I get error:
> return-statement with a value, in function returning 'void'.
I guess you declared your function as void whatever()
instead of
void *whatever().

> Now I see return(void *)x; on almost all the external codes so I  
> don't get it.  I am also getting an error on the void your_class_setup 
> (void) { part too.
> Error: a function-definition is not allowed here before '{' token.
> I am confused.  About compiling as C, the problem is that I am using c 
> ++ headers from the opencv library and I don't know if I can compile  
> as C?
You need to use the
extern "C"
construct. Have a look at the beginning and end of m_pd.h.


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