You can search for identifiers within the package.
in-package search v0.2.0
type t
Type of a ZBar image (zbar_image_t *).
zbar_image_t *
val destroy : t -> unit
destroy i frees the memory used by i.
destroy i
i
val convert : t -> string -> t
convert i fmt converts i to the pixel format described by fmt, using the fourcc notation (http://www.fourcc.org). Use "GREY" to obtain an image from which ZBar can decode symbols.
convert i fmt
fmt
http://www.fourcc.org