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How to make my own block to gnuradio

Question asked by littlebird on May 25, 2016
Latest reply on May 26, 2016 by pcercuei

I am making a source block by gr_modtool showed below:

(V]}~I3K9E~AZ$1~0%1HYUQ.png

here is the parameter of this block:

ZBJ_56(93FWYX1I@O0)D~}G.png

 

I want to add a button on the block to choose the file I need , like:

JNJLVOTBQH`K6P~CL${CAZV.png

Seeing the file parameter ,there is a file-choosing button to choose the file. Maybe that's a simple question,any ideals for that? 

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