mng_int32 extra2;
mng_pchar errortext;
mng_getlasterror (mng, &severity, &chunkname, &chunkseq, &extra1,&extra2, &errortext);
mng_int32 extra2;
mng_pchar errortext;
mng_getlasterror (mng, &severity, &chunkname, &chunkseq, &extra1,&extra2, &errortext);