If you only plan to have simple (text-only) tooltips on full items, you can use this function to have GtkIconView handle these automatically for you. @column should be set to the column in @icon_view's model containing the tooltip texts, or -1 to disable this feature. When enabled, GtkWidget::has-tooltip will be set to %TRUE and Note that the signal handler sets the text with gtk_tooltip_set_markup(), so &, <, etc have to be escaped in the text.