// TEXT part definition
 part { 
 	name: "text_example";
    type: TEXT;
    mouse_events: 0;
    description { state: "default" 0;
       align: 0 0;
       color: 0 0 0 255;
       rel1 {
          relative: 0.2 0.2;
       }
       rel2 {
          relative: 0.8 0.3;
       }
       text {
          text: "YOUR TEXT HERE";
          font: "Sans";
          size: 25;
          text_class: "my_class";
          fit: 0 0;
          min: 0 0;
          max: 0 0;
          align: 0.5 0;
          elipsis: 0.0;
       }
    }
 }
         
//basic operations
Evas_Object *layout = elm_layout_edje_get(ad->layout);
edje_object_part_text_set(layout, "text_example", "Hi!");
dlog_print(DLOG_ERROR, LOG_TAG, "text ");