panel_example_01.c
//Compile with:
//gcc -g panel_example_01.c -o panel_example_01 `pkg-config --cflags --libs elementary`
#include <Elementary.h>
EAPI_MAIN int
elm_main(int argc, char **argv)
{
Evas_Object *win, *bx, *panel, *content;
elm_policy_set(ELM_POLICY_QUIT, ELM_POLICY_QUIT_LAST_WINDOW_CLOSED);
win = elm_win_util_standard_add("panel", "Panel");
elm_win_autodel_set(win, EINA_TRUE);
bx = elm_box_add(win);
elm_box_horizontal_set(bx, EINA_FALSE);
evas_object_size_hint_weight_set(bx, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_show(bx);
panel = elm_panel_add(win);
elm_panel_orient_set(panel, ELM_PANEL_ORIENT_TOP);
evas_object_size_hint_weight_set(panel, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(panel, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_show(panel);
elm_box_pack_end(bx, panel);
content = elm_label_add(win);
elm_object_text_set(content, "content");
evas_object_show(content);
elm_object_content_set(panel, content);
panel = elm_panel_add(win);
elm_panel_hidden_set(panel, EINA_TRUE);
evas_object_size_hint_weight_set(panel, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(panel, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_show(panel);
elm_box_pack_end(bx, panel);
content = elm_label_add(win);
elm_object_text_set(content, "content2");
evas_object_show(content);
elm_object_content_set(panel, content);
panel = elm_panel_add(win);
evas_object_size_hint_weight_set(panel, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
evas_object_size_hint_align_set(panel, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_show(panel);
elm_box_pack_end(bx, panel);
content = elm_label_add(win);
elm_object_text_set(content, "content2");
evas_object_show(content);
elm_object_content_set(panel, content);
evas_object_show(win);
return 0;
}