I am having a problem with my Slider

[Hadad]

So slide_val is what you need to integrate in GNU Radio code.
You have pick a project that's not so easy if new to all of this Undecided

And thats my problem!! I am really new to these stuff. I spent the last 5 hours trying mimic your codes and apply them to mine but no luck at all. It is getting me crazy! I will keep trying, no other choice. Though thanks a lot to your entry snippsat.