Sets markup as the contents of the tooltip, which is marked up with
the Pango text markup language.
This function will take care of setting "has-tooltip" to TRUE
and of the default handler for the "query-tooltip" signal.
See also the "tooltip-markup" property and
gtk_tooltip_set_markup().
Since 2.16
Sets markup as the contents of the tooltip, which is marked up with the Pango text markup language. This function will take care of setting "has-tooltip" to TRUE and of the default handler for the "query-tooltip" signal. See also the "tooltip-markup" property and gtk_tooltip_set_markup(). Since 2.16