Function titanium::desktop::gui::libdruid::piet::cairo::glib::ffi::g_filename_to_utf8

pub unsafe extern "C" fn g_filename_to_utf8(
    opsysstring: *const i8,
    len: isize,
    bytes_read: *mut usize,
    bytes_written: *mut usize,
    error: *mut *mut GError
) -> *mut i8