[PD] how do tk widgets talking back to externals?

[Krzysztof Czaja]

hi,

the usual way is doing just that -- sending to a symbol -- on the
gui side, while binding your external object to this symbol on the
pd side.  Since that symbol should be somehow unique, a good way
would be to perform some name mangling with an object's address,
e.g. using "%x" pattern in sprintf.  You will find many such
examples in Miller's (and other's) code.

Krzysztof

e skogen wrote:
...
 > how do i get my tk widget to send messages back to my c++ extern? right
 > now i just have it send to a receive object in my patch, which is hardly
 > as elegent.