This signal is a sign for the cell renderer to update its value from the @cell_editable.
This signal is meant to indicate that the cell is finished editing, and the widget may now be destroyed.
Emits the #GtkCellEditable::editing-done signal.
Get the main Gtk struct
Emits the #GtkCellEditable::remove-widget signal.
Begins editing on a @cell_editable. @event is the #GdkEvent that began the editing process. It may be %NULL, in the instance that editing was initiated through programatic means.
The #GtkCellEditable interface must be implemented for widgets to be usable when editing the contents of a #GtkTreeView cell.