window management demo: show dpi for second screen if plugged in at runtime.

misc/window_management/control.gd

@@ -51,6 +51,7 @@ func _fixed_process(delta):
 		get_node("Button_Screen1").show()
 		get_node("Label_Screen1_Resolution").show()
 		get_node("Label_Screen1_Position").show()
+		get_node("Label_Screen1_DPI").show()
 		get_node("Label_Screen1_Resolution").set_text(str("Screen1 Resolution:\n", OS.get_screen_size(1)))
 		get_node("Label_Screen1_Position").set_text(str("Screen1 Position:\n", OS.get_screen_position(1)))
 		get_node("Label_Screen1_DPI").set_text(str("Screen1 DPI:\n", OS.get_screen_dpi(1)))