added the following methods:

* set_minimized(bool)
 * bool is_minimized()
 * set_maximized(bool)
 * bool is_maximized()

demos/misc/window_management/control.gd

@@ -13,17 +13,25 @@ func _fixed_process(delta):
 	if(!OS.is_resizable()):
 		modetext += "FixedSize\n"
 	
+	if(OS.is_minimized()):
+		modetext += "Minimized\n"
+	
+	if(OS.is_maximized()):
+		modetext += "Maximized\n"
+	
 	get_node("Label_Mode").set_text(modetext)
 	
 	get_node("Label_Position").set_text( str("Position:\n", OS.get_window_position() ) )
 	
 	get_node("Label_Size").set_text(str("Size:\n", OS.get_window_size() ) )
 	
-	get_node("Label_Screen_Info").set_text( str("Screens:\n", OS.get_screen_count(),"\n\nCurrent:\n", OS.get_screen() ) )
+	get_node("Label_Screen_Count").set_text( str("Screens:\n", OS.get_screen_count() ) )
+	
+	get_node("Label_Screen_Current").set_text( str("Current:\n", OS.get_screen() ) )
 	
 	get_node("Label_Screen0_Resolution").set_text( str("Screen0 Resolution:\n", OS.get_screen_size() ) )
 	
-	get_node("Label_Screen0_Position").set_text(str("Screen0 Position:\n",OS.get_screen_position()))
+	get_node("Label_Screen0_Position").set_text(str("Screen0 Position:\n",OS.get_screen_position() ) )
 	
 	
 	if(OS.get_screen_count() > 1):
@@ -50,8 +58,9 @@ func _fixed_process(delta):
 		OS.set_fullscreen(false)
 		
 	get_node("Button_FixedSize").set_pressed( !OS.is_resizable() )
-
-
+	get_node("Button_Minimized").set_pressed( OS.is_minimized() )
+	get_node("Button_Maximized").set_pressed( OS.is_maximized() )
+	
 func _ready():
 	set_fixed_process(true)
 
@@ -79,9 +88,6 @@ func _on_Button_Screen1_pressed():
 	OS.set_screen(1)
 
 
-
-
-
 func _on_Button_FixedSize_pressed():
 	if(OS.is_resizable()):
 		OS.set_resizable(false)
@@ -89,3 +95,16 @@ func _on_Button_FixedSize_pressed():
 		OS.set_resizable(true)
 		
 
+
+func _on_Button_Minimized_pressed():
+	if(OS.is_minimized()):
+		OS.set_minimized(false)
+	else:
+		OS.set_minimized(true)
+
+
+func _on_Button_Maximized_pressed():
+	if(OS.is_maximized()):
+		OS.set_maximized(false)
+	else:
+		OS.set_maximized(true)