Sorry if this is a stupid question, but here im totally stuck:
I need to define a boolean which is to be changed within a music-function
and a stencil callback.
I tried
#(define mybool #f)
at the beginning and later
myfunc = #(define-music-function (parser location note) (ly:music?)
(set! mybool #t)
#{
...do some stuff with... $note
#})
and
#(define-public (my-callback grob)
...
(if (eq? mybool #t)
(...stuff for true ...)
(...stuff for false ... ))
;; reset mybool
(set! mybool #f)
...
)
but this approach doesn't seem to work; the value doesn't change when I
call \myfunc
within a Voice. I tried the same thing with numeric values, but that
didn't work either.
What am I doing wrong?
Marc
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