Type Definition mupdf_sys::fz_document_lookup_metadata_fn

pub type fz_document_lookup_metadata_fn = Option<unsafe extern "C" fn(ctx: *mut fz_context, doc: *mut fz_document, key: *const c_char, buf: *mut c_char, size: c_int) -> c_int>;

Type for a function to query a document’s metadata. See fz_lookup_metadata for more information.