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 widget, or NULL
2.12
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.