signal callback delegate or function to connect
string callback(gtksource.mark.Mark mark, gtksource.mark_attributes.MarkAttributes markAttributes)
mark The #GtkSourceMark. (optional)
markAttributes the instance the signal is connected to (optional)
Returns A tooltip. The string should be freed with glib.global.gfree when done with it.
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to QueryTooltipText signal.
The code should connect to this signal to provide a tooltip for given mark. The tooltip should be just a plain text.