gtk:tree-view-tooltip-column (object)

object -- a gtk:tree-view widget
column -- an integer that is a valid column number for tree view's model

The accessor for the tooltip-column slot gets or sets the column of the tree view's model which is being used for displaying tooltips on the tree view's rows.

If you only plan to have simple (text-only) tooltips on full rows, you can use this function to have the gtk:tree-view widget handle these automatically for you. The column argument should be set to the column in the tree view's model containing the tooltip texts, or -1 to disable this feature.

When enabled, the has-tooltip property will be set to true and the tree view will connect a "query-tooltip" signal handler.

Note that the signal handler sets the text with the gtk:tooltip-set-markup function, so &, <, and so on, have to be escaped in the text. The gtk:tree-view implementation is deprecated since 4.10. Please do not use it in newly written code.