commit https://github.com/vim/vim/commit/6fc8227ebfbdfbbb48b81b679db81f421dbce79b Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 28 19:26:43 2016 +0200 patch 7.4.2287 Problem: The callback passed to ch_sendraw() is not used. Solution: Pass the read part, not the send part. (haya14busa, closes https://github.com/vim/vim/issues/1019)

TYPEMAP
VIWIN	T_VIOBJNOMUNGE
VIBUF	T_VIOBJNOMUNGE

INPUT
T_VIOBJNOMUNGE
	if (sv_isa($arg, \"${ntype}\")) {
	    IV tmp = SvIV((SV*)SvRV($arg));
	    $var = INT2PTR($type, tmp);
	    if (!tmp)
		croak(\"$ntype no longer exists\");
	}
	else
	    croak(\"$var is not of type ${ntype}\")