Hi Jose, adding a callback to your GRC block definition makes GRC call that function whenever that GRC variable is changed.
Comment: the fact that this is XML means you're working on GNU Radio 3.7.*, which is not our current release (3.8.1.0), so if you're developing something new, you might want to update your GNU Radio. Best regards, and happy hacking Marcus PS: you don't have to add [discuss-gnuradio] to your subject line :) On 07.05.20 07:41, Jose Ruvalcaba wrote: > Hello, > > I am trying to setup a callback function on an python OOT Block I made > with GNU radio 3.7. I am trying to do this so I can manually change the > value of my parameter using a slider. > > In the XML file of my OOT block I have added a statement that looks like > this: <callback>set_variable_name($variable_name) </callback> > However, I was wondering, Do I need to add any other "callback" commands > to my python file? Or is this callback line in the XML file enough in > order to have variables change in my python OOT Block. Any tips would be > appreciate. > > > Thank you, > > Jose Ruvalcaba
