Sets start_path and end_path to be the first and last visible path. Note that there may be invisible paths in between.
The paths should be freed with gtk.tree_path.TreePath.free after use.
Return location for start of region, or null.
Return location for end of region, or null.
true, if valid paths were placed in start_path and end_path.
Sets start_path and end_path to be the first and last visible path. Note that there may be invisible paths in between.
The paths should be freed with gtk.tree_path.TreePath.free after use.