Mine

int value_int;

        // Imgsize
        res = gp_widget_get_child_by_name(config_root, "imgsize", &widget_value);
        if(res!=GP_OK) {printf("03 - Code: %d - %s\n", res, gp_result_as_string(res)); return NULL;}
        res = gp_widget_get_value(widget_value, &value_int);
        if(res!=GP_OK) {printf("04 - Code: %d - %s\n", res, gp_result_as_string(res)); return NULL;}
        printf("imgsize '%d'\n", value_int);


imgsize '-1409241664'