public static extern bool gimp_procedural_db_proc_info( string procedure, out string blurb, out string help, out string author, out string copyright, out string date, out PDBProcType proc_type, out int num_args, out int num_values, out IntPtr args, out IntPtr return_vals);
public static extern void gimp_install_procedure( string name, string blurb, string help, string author, string copyright, string date, string menu_path, string image_types, PDBProcType type, int n_params, int n_return_vals, GimpParamDef[] _params, GimpParamDef[] return_vals);