If you only plan to have simple (text-only) tooltips on full rows, you
can use this function to have GtkTreeView handle these automatically
for you. column should be set to the column in tree_view's model
containing the tooltip texts, or -1 to disable this feature.
When enabled, "has-tooltip" will be set to TRUE and
tree_view will connect a "query-tooltip" signal handler.
Note that the signal handler sets the text with gtk_tooltip_set_markup(),
so , <, etc have to be escaped in the text.
Since 2.12
If you only plan to have simple (text-only) tooltips on full rows, you can use this function to have GtkTreeView handle these automatically for you. column should be set to the column in tree_view's model containing the tooltip texts, or -1 to disable this feature. When enabled, "has-tooltip" will be set to TRUE and tree_view will connect a "query-tooltip" signal handler. Note that the signal handler sets the text with gtk_tooltip_set_markup(), so , <, etc have to be escaped in the text. Since 2.12