struct _VikViewport * vik_window_viewport(VikWindow *vw);
struct _VikLayersPanel * vik_window_layers_panel(VikWindow *vw);
struct _VikStatusbar * vik_window_get_statusbar(VikWindow *vw);
struct _VikViewport * vik_window_viewport(VikWindow *vw);
struct _VikLayersPanel * vik_window_layers_panel(VikWindow *vw);
struct _VikStatusbar * vik_window_get_statusbar(VikWindow *vw);