[ Version ( since = "2.12" ) ]
public string tooltip_markup { owned get; set; }

Sets the text of tooltip to be the given string, which is marked up with the Pango text markup language.

Also see set_markup.

This is a convenience property which will take care of getting the tooltip shown if the given string is not null : has_tooltip will automatically be set to true and there will be taken care of query_tooltip in the default signal handler.

Note that if both tooltip_text and tooltip_markup are set, the last one wins.