Oops, the syntax of the second call was actually
return_vals = gimp_run_procedure("plug_in_gauss_iir",&nreturn_vals,
GIMP_PDB_INT32, GIMP_RUN_NONINTERACTIVE,
GIMP_PDB_IMAGE, imageID,
GIMP_PDB_DRAWABLE, drawable->id,
GIMP_PDB_INT32,15,
GIMP_PDB_INT32, 1,
GIMP_PDB_INT32, 1,
GIMP_PDB_END);
Cindy Huyser
