Horizontal And Vertical Box (Cont.) /* place 4 buttons in the v-boxes, 2 in each. */ gtk_box_pack_start(GTK_BOX(vbox1), button11, TRUE, TRUE, 1); gtk_box_pack_start(GTK_BOX(vbox1), button12, TRUE, TRUE, 1); gtk_box_pack_start(GTK_BOX(vbox2), button21, TRUE, TRUE, 1); gtk_box_pack_start(GTK_BOX(vbox2), button12, TRUE, TRUE, 1); The window would look like this: