Sets markup as the contents of the tooltip, which is marked up with the [Pango text markup language]PangoMarkupFormat.
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 Tooltip.setMarkup.
the contents of the tooltip for status_icon, or NULL
Deprecated: Use gio.Notification and gtk.Application to provide status notifications; there is no direct replacement for this function
2.16
Sets markup as the contents of the tooltip, which is marked up with the [Pango text markup language]PangoMarkupFormat.
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 Tooltip.setMarkup.