[Discuss-gnuradio] Other block as parameter in GRC

[Julius Durst]

Hi,

how can I pass an other block from my flowgraph to a self written block 
in the gnuradio-companion? What I want to do is invoking a method of 
that passed block in my own one (or maybe there's an other way to do that?).

I have tried passing the ID of the block to a parameter of type "raw", 
but it says
Param - <param_name>(param_key):
        Value "<ID_of_ohter_block>" cannot be evaluated:
	name '<ID_of_ohter_block>' is not defined in the block properties in 
the GRC.

I thought that is what raw was for?

What I exactly want to do is switching filters or, what I am trying with 
the above, change the taps of one filter, at runtime. So if you have any 
suggestions for that, please also tell me.


Cheers
Julius