get_cursor
Description:
Fills in path and focus_column with the current path and focus column.
Note:
Use [class@Gtk.ListView] or [class@Gtk.ColumnView] instead
If the cursor isn’t currently set, then *path will be null. If no column currently has focus,
then *focus_column will be null.
The returned `GtkTreePath` must be freed with free when you are done with it.
Parameters:
| this |
A `GtkTreeView` |
| path |
A pointer to be filled with the current cursor path |
| focus_column |
A pointer to be filled with the current focus column |