[Discuss-gnuradio] OOT how to write my own custom header format

hi all

i'm trying to derive the header_format_base with no success

i created a new module with modtool and the "no block" profile

i copied and modified the "header_format_default" sources but i get swig error

telling me that sptr is not defined

did someone ever managed to write its own header format with modtool ?

is modtool the way to go ?

which modtool profile do i need to use ?

do you have some hints for doing so ?

i can read and write (kind of) some C++ code but i do not know anything about SWIG. that is black magic for me, so please i would be glad if someone explain me step by step ;)

thank you all

bob