Gtk.TreeViewMappingFunc
Description: Reference for Gtk.TreeViewMappingFunc

### Function

# GtkTreeViewMappingFunc

#### Declaration

    void
    (* GtkTreeViewMappingFunc) (
      GtkTreeView* tree_view,
      GtkTreePath* path,
      gpointer user_data
    )

#### Description [src]

Function used for gtk_tree_view_map_expanded_rows().

#### Parameters

`tree_view` | `GtkTreeView`
| A `GtkTreeView`
| The data is owned by the caller of the function.
`path` | `GtkTreePath`
| The path that’s expanded.
| The data is owned by the caller of the function.
`user_data` | `gpointer`
| User data.
| The argument can be `NULL`.
| The data is owned by the caller of the function.