Horizontal And Vertical Box

A Horizontal Box (gtk_hbox) allows placing items inside it horizontally (left-to-right or right-to-left). Here is an example. Assume that 'button1', 'button2' and 'button3' are push buttons.

/* create a new horizontal box, make it non-homogeneous, */
/* and with 0 spacing between its contained widgets.     */
GtkWidget* hbox = gtk_hbox_new(FALSE, 0);

/* add it to the top-level window. */
gtk_container_add(GTK_CONTAINER(main_window), hbox);

/* make it visible. */
gtk_widget_show(hbox);

/* pack our buttons inside the box. the button will expand */
/* when the box is resized, will fill all available space  */
/* in the box, and have 1 pixel of padding on each size.   */
gtk_box_pack_start(GTK_BOX(hbox), button1, TRUE, TRUE, 1);
gtk_box_pack_start(GTK_BOX(hbox), button2, TRUE, TRUE, 1);
gtk_box_pack_start(GTK_BOX(hbox), button3, TRUE, TRUE, 1);