Hi, Quoting Olivier <lists@xxxxxxxxxxxxxxxxx>: <snip> > gboolean blank_outer_region; <snip> > GIMP_CONFIG_INSTALL_PROP_BOOLEAN (object_class, PROP_BLANK_OUTER_REGION, > "blank-outer-region", NULL, > FALSE, > 0); <snip> > options->blank_outer_region = g_value_get_enum (value); > g_value_set_enum (value, options->blank_outer_region); This looks rather suspicions - you're declaring a gboolean as a BOOLEAN property, and then using get_ and set_enum to get and set its value. Try changing these to get_ and set_boolean and see what happens. Cheers, Dave. -- Dave Neary Lyon, France