#define VIK_TRW_LAYER_TYPE (vik_trw_layer_get_type ())
#define VIK_TRW_LAYER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), VIK_TRW_LAYER_TYPE, VikTrwLayer))
#define VIK_TRW_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), VIK_TRW_LAYER_TYPE, VikTrwLayerClass))
#define VIK_TRW_LAYER_TYPE (vik_trw_layer_get_type ())
#define VIK_TRW_LAYER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), VIK_TRW_LAYER_TYPE, VikTrwLayer))
#define VIK_TRW_LAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), VIK_TRW_LAYER_TYPE, VikTrwLayerClass))