Replaces the widget packed into the tooltip with
@custom_widget. @custom_widget does not get destroyed when the tooltip goes
away.
By default a box with a #GtkImage and #GtkLabel is embedded in
the tooltip, which can be configured using gtk_tooltip_set_markup()
and gtk_tooltip_set_icon().
Replaces the widget packed into the tooltip with @custom_widget. @custom_widget does not get destroyed when the tooltip goes away. By default a box with a #GtkImage and #GtkLabel is embedded in the tooltip, which can be configured using gtk_tooltip_set_markup() and gtk_tooltip_set_icon().