path: root/doc/classes/OS.xml

<?xml version="1.0" encoding="UTF-8" ?>
<class name="OS" inherits="Object" category="Core" version="3.1">
	<brief_description>
		Operating System functions.
	</brief_description>
	<description>
		Operating System functions. OS Wraps the most common functionality to communicate with the host Operating System, such as: mouse grabbing, mouse cursors, clipboard, video mode, date and time, timers, environment variables, execution of binaries, command line, etc.
	</description>
	<tutorials>
	</tutorials>
	<demos>
	</demos>
	<methods>
		<method name="alert">
			<return type="void">
			</return>
			<argument index="0" name="text" type="String">
			</argument>
			<argument index="1" name="title" type="String" default="&quot;Alert!&quot;">
			</argument>
			<description>
				Displays a modal dialog box utilizing the host OS.
			</description>
		</method>
		<method name="can_draw" qualifiers="const">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if the host OS allows drawing.
			</description>
		</method>
		<method name="can_use_threads" qualifiers="const">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if the current host platform is using multiple threads.
			</description>
		</method>
		<method name="center_window">
			<return type="void">
			</return>
			<description>
			</description>
		</method>
		<method name="delay_msec" qualifiers="const">
			<return type="void">
			</return>
			<argument index="0" name="msec" type="int">
			</argument>
			<description>
				Delay executing of the current thread by given milliseconds.
			</description>
		</method>
		<method name="delay_usec" qualifiers="const">
			<return type="void">
			</return>
			<argument index="0" name="usec" type="int">
			</argument>
			<description>
				Delay executing of the current thread by given microseconds.
			</description>
		</method>
		<method name="dump_memory_to_file">
			<return type="void">
			</return>
			<argument index="0" name="file" type="String">
			</argument>
			<description>
				Dumps the memory allocation ringlist to a file (only works in debug).
				Entry format per line: "Address - Size - Description"
			</description>
		</method>
		<method name="dump_resources_to_file">
			<return type="void">
			</return>
			<argument index="0" name="file" type="String">
			</argument>
			<description>
				Dumps all used resources to file (only works in debug).
				Entry format per line: "Resource Type : Resource Location"
				At the end of the file is a statistic of all used Resource Types.
			</description>
		</method>
		<method name="execute">
			<return type="int">
			</return>
			<argument index="0" name="path" type="String">
			</argument>
			<argument index="1" name="arguments" type="PoolStringArray">
			</argument>
			<argument index="2" name="blocking" type="bool">
			</argument>
			<argument index="3" name="output" type="Array" default="[  ]">
			</argument>
			<description>
				Execute the file at the given path, optionally blocking until it returns.
				Platform path resolution will take place.  The resolved file must exist and be executable.
				Returns a process id.
				For example:
				[codeblock]
				var output = []
				var pid = OS.execute('ls', [], true, output)
				[/codeblock]
				If you wish to access a shell built-in or perform a composite command, a platform specific shell can be invoked.  For example:
				[codeblock]
				var pid = OS.execute('CMD.exe', ['/C', 'cd %TEMP% &amp;&amp; dir'], true, output)
				[/codeblock]
			</description>
		</method>
		<method name="find_scancode_from_string" qualifiers="const">
			<return type="int">
			</return>
			<argument index="0" name="string" type="String">
			</argument>
			<description>
				Returns the scancode of the given string (e.g. "Escape")
			</description>
		</method>
		<method name="get_audio_driver_count" qualifiers="const">
			<return type="int">
			</return>
			<description>
			</description>
		</method>
		<method name="get_audio_driver_name" qualifiers="const">
			<return type="String">
			</return>
			<argument index="0" name="arg0" type="int">
			</argument>
			<description>
			</description>
		</method>
		<method name="get_cmdline_args">
			<return type="PoolStringArray">
			</return>
			<description>
				Returns the command line arguments passed to the engine.
			</description>
		</method>
		<method name="get_date" qualifiers="const">
			<return type="Dictionary">
			</return>
			<argument index="0" name="utc" type="bool" default="false">
			</argument>
			<description>
				Returns current date as a dictionary of keys: year, month, day, weekday, dst (daylight savings time).
			</description>
		</method>
		<method name="get_datetime" qualifiers="const">
			<return type="Dictionary">
			</return>
			<argument index="0" name="utc" type="bool" default="false">
			</argument>
			<description>
				Returns current datetime as a dictionary of keys: year, month, day, weekday, dst (daylight savings time), hour, minute, second.
			</description>
		</method>
		<method name="get_datetime_from_unix_time" qualifiers="const">
			<return type="Dictionary">
			</return>
			<argument index="0" name="unix_time_val" type="int">
			</argument>
			<description>
				Get a dictionary of time values when given epoch time.
				Dictionary Time values will be a union of values from [method get_time] and [method get_date] dictionaries (with the exception of dst = day light standard time, as it cannot be determined from epoch).
			</description>
		</method>
		<method name="get_dynamic_memory_usage" qualifiers="const">
			<return type="int">
			</return>
			<description>
				Returns the total amount of dynamic memory used (only works in debug).
			</description>
		</method>
		<method name="get_environment" qualifiers="const">
			<return type="String">
			</return>
			<argument index="0" name="environment" type="String">
			</argument>
			<description>
				Returns an environment variable.
			</description>
		</method>
		<method name="get_executable_path" qualifiers="const">
			<return type="String">
			</return>
			<description>
				Returns the path to the current engine executable.
			</description>
		</method>
		<method name="get_latin_keyboard_variant" qualifiers="const">
			<return type="String">
			</return>
			<description>
				Returns the current latin keyboard variant as a String.
				Possible return values are: "QWERTY", "AZERTY", "QZERTY", "DVORAK", "NEO", "COLEMAK" or "ERROR".
			</description>
		</method>
		<method name="get_locale" qualifiers="const">
			<return type="String">
			</return>
			<description>
				Returns the host OS locale.
			</description>
		</method>
		<method name="get_model_name" qualifiers="const">
			<return type="String">
			</return>
			<description>
				Returns the model name of the current device.
			</description>
		</method>
		<method name="get_name" qualifiers="const">
			<return type="String">
			</return>
			<description>
				Returns the name of the host OS. Possible values are: "Android", "Haiku", "iOS", "HTML5", "OSX", "Server", "Windows", "UWP", "X11".
			</description>
		</method>
		<method name="get_power_percent_left">
			<return type="int">
			</return>
			<description>
				Returns the amount of battery left in the device as a percentage.
			</description>
		</method>
		<method name="get_power_seconds_left">
			<return type="int">
			</return>
			<description>
				Returns the time in seconds before the device runs out of battery.
			</description>
		</method>
		<method name="get_power_state">
			<return type="int" enum="OS.PowerState">
			</return>
			<description>
				Returns the current state of the device regarding battery and power. See [code]POWERSTATE_*[/code] constants.
			</description>
		</method>
		<method name="get_process_id" qualifiers="const">
			<return type="int">
			</return>
			<description>
				Returns the game process ID
			</description>
		</method>
		<method name="get_processor_count" qualifiers="const">
			<return type="int">
			</return>
			<description>
				Returns the number of cores available in the host machine.
			</description>
		</method>
		<method name="get_real_window_size" qualifiers="const">
			<return type="Vector2">
			</return>
			<description>
			</description>
		</method>
		<method name="get_scancode_string" qualifiers="const">
			<return type="String">
			</return>
			<argument index="0" name="code" type="int">
			</argument>
			<description>
				Returns the given scancode as a string (e.g. Return values: "Escape", "Shift+Escape").
			</description>
		</method>
		<method name="get_screen_count" qualifiers="const">
			<return type="int">
			</return>
			<description>
				Returns the number of displays attached to the host machine.
			</description>
		</method>
		<method name="get_screen_dpi" qualifiers="const">
			<return type="int">
			</return>
			<argument index="0" name="screen" type="int" default="-1">
			</argument>
			<description>
				Returns the dots per inch density of the specified screen.

				On Android Devices, the actual screen densities are grouped into six generalized densities:
					ldpi    - 120 dpi
					mdpi    - 160 dpi
					hdpi    - 240 dpi
					xhdpi   - 320 dpi
					xxhdpi  - 480 dpi
					xxxhdpi - 640 dpi
			</description>
		</method>
		<method name="get_screen_position" qualifiers="const">
			<return type="Vector2">
			</return>
			<argument index="0" name="screen" type="int" default="-1">
			</argument>
			<description>
				Returns the position of the specified screen by index. If no screen index is provided, the current screen will be used.
			</description>
		</method>
		<method name="get_screen_size" qualifiers="const">
			<return type="Vector2">
			</return>
			<argument index="0" name="screen" type="int" default="-1">
			</argument>
			<description>
				Returns the dimensions in pixels of the specified screen.
			</description>
		</method>
		<method name="get_splash_tick_msec" qualifiers="const">
			<return type="int">
			</return>
			<description>
			</description>
		</method>
		<method name="get_static_memory_peak_usage" qualifiers="const">
			<return type="int">
			</return>
			<description>
				Returns the max amount of static memory used (only works in debug).
			</description>
		</method>
		<method name="get_static_memory_usage" qualifiers="const">
			<return type="int">
			</return>
			<description>
				Returns the amount of static memory being used by the program in bytes.
			</description>
		</method>
		<method name="get_system_dir" qualifiers="const">
			<return type="String">
			</return>
			<argument index="0" name="dir" type="int" enum="OS.SystemDir">
			</argument>
			<description>
				Returns the actual path to commonly used folders across different platforms. Available locations are specified in [OS.SystemDir].
			</description>
		</method>
		<method name="get_system_time_secs" qualifiers="const">
			<return type="int">
			</return>
			<description>
				Returns the epoch time of the operating system in seconds.
			</description>
		</method>
		<method name="get_ticks_msec" qualifiers="const">
			<return type="int">
			</return>
			<description>
				Returns the amount of time passed in milliseconds since the engine started.
			</description>
		</method>
		<method name="get_time" qualifiers="const">
			<return type="Dictionary">
			</return>
			<argument index="0" name="utc" type="bool" default="false">
			</argument>
			<description>
				Returns current time as a dictionary of keys: hour, minute, second.
			</description>
		</method>
		<method name="get_time_zone_info" qualifiers="const">
			<return type="Dictionary">
			</return>
			<description>
				Returns the current time zone as a dictionary with the keys: bias and name.
			</description>
		</method>
		<method name="get_unique_id" qualifiers="const">
			<return type="String">
			</return>
			<description>
				Returns a string that is unique to the device.
				Returns empty string on HTML5 and UWP which are not supported yet.
			</description>
		</method>
		<method name="get_unix_time" qualifiers="const">
			<return type="int">
			</return>
			<description>
				Return	the current unix timestamp.
			</description>
		</method>
		<method name="get_unix_time_from_datetime" qualifiers="const">
			<return type="int">
			</return>
			<argument index="0" name="datetime" type="Dictionary">
			</argument>
			<description>
				Get an epoch time value from a dictionary of time values.
				[code]datetime[/code] must be populated with the following keys: year, month, day, hour, minute, second.
				You can pass the output from [method get_datetime_from_unix_time] directly into this function. Daylight savings time (dst), if present, is ignored.
			</description>
		</method>
		<method name="get_user_data_dir" qualifiers="const">
			<return type="String">
			</return>
			<description>
				Returns the absolute directory path where user data is written ([code]user://[/code]).
				On Linux, this is [code]~/.local/share/godot/app_userdata/[project_name][/code], or [code]~/.local/share/[custom_name][/code] if [code]use_custom_user_dir[/code] is set.
				On macOS, this is [code]~/Library/Application Support/Godot/app_userdata/[project_name][/code], or [code]~/Library/Application Support/[custom_name][/code] if [code]use_custom_user_dir[/code] is set.
				On Windows, this is [code]%APPDATA%/Godot/app_userdata/[project_name][/code], or [code]%APPDATA%/[custom_name][/code] if [code]use_custom_user_dir[/code] is set.
				If the project name is empty, [code]user://[/code] falls back to [code]res://[/code].
			</description>
		</method>
		<method name="get_video_driver_count" qualifiers="const">
			<return type="int">
			</return>
			<description>
			</description>
		</method>
		<method name="get_video_driver_name" qualifiers="const">
			<return type="String">
			</return>
			<argument index="0" name="arg0" type="int">
			</argument>
			<description>
			</description>
		</method>
		<method name="get_virtual_keyboard_height">
			<return type="int">
			</return>
			<description>
			</description>
		</method>
		<method name="has_environment" qualifiers="const">
			<return type="bool">
			</return>
			<argument index="0" name="environment" type="String">
			</argument>
			<description>
				Returns [code]true[/code] if an environment variable exists.
			</description>
		</method>
		<method name="has_feature" qualifiers="const">
			<return type="bool">
			</return>
			<argument index="0" name="tag_name" type="String">
			</argument>
			<description>
			</description>
		</method>
		<method name="has_touchscreen_ui_hint" qualifiers="const">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if the device has a touchscreen or emulates one.
			</description>
		</method>
		<method name="has_virtual_keyboard" qualifiers="const">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if the platform has a virtual keyboard, [code]false[/code] otherwise.
			</description>
		</method>
		<method name="hide_virtual_keyboard">
			<return type="void">
			</return>
			<description>
				Hides the virtual keyboard if it is shown, does nothing otherwise.
			</description>
		</method>
		<method name="is_debug_build" qualifiers="const">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if the build is a debug build.
				Returns [code]true[/code] when running in the editor.
				Returns [code]false[/code] if the build is a release build.
			</description>
		</method>
		<method name="is_ok_left_and_cancel_right" qualifiers="const">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if the "Okay" button should appear on the left and "Cancel" on the right.
			</description>
		</method>
		<method name="is_scancode_unicode" qualifiers="const">
			<return type="bool">
			</return>
			<argument index="0" name="code" type="int">
			</argument>
			<description>
				Returns [code]true[/code] if the input code has a unicode character.
			</description>
		</method>
		<method name="is_stdout_verbose" qualifiers="const">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if the engine was executed with -v (verbose stdout).
			</description>
		</method>
		<method name="is_userfs_persistent" qualifiers="const">
			<return type="bool">
			</return>
			<description>
				If [code]true[/code], the [code]user://[/code] file system is persistent, so that its state is the same after a player quits and starts the game again. Relevant to the HTML5 platform, where this persistence may be unavailable.
			</description>
		</method>
		<method name="is_window_always_on_top" qualifiers="const">
			<return type="bool">
			</return>
			<description>
			</description>
		</method>
		<method name="kill">
			<return type="int" enum="Error">
			</return>
			<argument index="0" name="pid" type="int">
			</argument>
			<description>
				Kill a process ID (this method can be used to kill processes that were not spawned by the game).
			</description>
		</method>
		<method name="native_video_is_playing">
			<return type="bool">
			</return>
			<description>
				Returns [code]true[/code] if native video is playing.
			</description>
		</method>
		<method name="native_video_pause">
			<return type="void">
			</return>
			<description>
				Pauses native video playback.
			</description>
		</method>
		<method name="native_video_play">
			<return type="int" enum="Error">
			</return>
			<argument index="0" name="path" type="String">
			</argument>
			<argument index="1" name="volume" type="float">
			</argument>
			<argument index="2" name="audio_track" type="String">
			</argument>
			<argument index="3" name="subtitle_track" type="String">
			</argument>
			<description>
				Plays native video from the specified path, at the given volume and with audio and subtitle tracks.
			</description>
		</method>
		<method name="native_video_stop">
			<return type="void">
			</return>
			<description>
				Stops native video playback.
			</description>
		</method>
		<method name="native_video_unpause">
			<return type="void">
			</return>
			<description>
				Resumes native video playback.
			</description>
		</method>
		<method name="print_all_resources">
			<return type="void">
			</return>
			<argument index="0" name="tofile" type="String" default="&quot;&quot;">
			</argument>
			<description>
				Shows all resources in the game. Optionally the list can be written to a file.
			</description>
		</method>
		<method name="print_all_textures_by_size">
			<return type="void">
			</return>
			<description>
				Shows the list of loaded textures sorted by size in memory.
			</description>
		</method>
		<method name="print_resources_by_type">
			<return type="void">
			</return>
			<argument index="0" name="types" type="PoolStringArray">
			</argument>
			<description>
				Shows the number of resources loaded by the game of the given types.
			</description>
		</method>
		<method name="print_resources_in_use">
			<return type="void">
			</return>
			<argument index="0" name="short" type="bool" default="false">
			</argument>
			<description>
				Shows all resources currently used by the game.
			</description>
		</method>
		<method name="request_attention">
			<return type="void">
			</return>
			<description>
				Request the user attention to the window. It'll flash the taskbar button on Windows or bounce the dock icon on OSX.
			</description>
		</method>
		<method name="set_icon">
			<return type="void">
			</return>
			<argument index="0" name="icon" type="Image">
			</argument>
			<description>
				Sets the game's icon.
			</description>
		</method>
		<method name="set_ime_position">
			<return type="void">
			</return>
			<argument index="0" name="position" type="Vector2">
			</argument>
			<description>
			</description>
		</method>
		<method name="set_thread_name">
			<return type="int" enum="Error">
			</return>
			<argument index="0" name="name" type="String">
			</argument>
			<description>
				Sets the name of the current thread.
			</description>
		</method>
		<method name="set_use_file_access_save_and_swap">
			<return type="void">
			</return>
			<argument index="0" name="enabled" type="bool">
			</argument>
			<description>
				Enables backup saves if [code]enabled[/code] is [code]true[/code].
			</description>
		</method>
		<method name="set_window_always_on_top">
			<return type="void">
			</return>
			<argument index="0" name="enabled" type="bool">
			</argument>
			<description>
			</description>
		</method>
		<method name="set_window_title">
			<return type="void">
			</return>
			<argument index="0" name="title" type="String">
			</argument>
			<description>
				Sets the window title to the specified string.
			</description>
		</method>
		<method name="shell_open">
			<return type="int" enum="Error">
			</return>
			<argument index="0" name="uri" type="String">
			</argument>
			<description>
				Requests the OS to open a resource with the most appropriate program. For example.
					[code]OS.shell_open("C:\\Users\name\Downloads")[/code] on Windows opens the file explorer at the downloads folders of the user.
					[code]OS.shell_open("http://godotengine.org")[/code] opens the default web browser on the official Godot website.
			</description>
		</method>
		<method name="show_virtual_keyboard">
			<return type="void">
			</return>
			<argument index="0" name="existing_text" type="String" default="&quot;&quot;">
			</argument>
			<description>
				Shows the virtual keyboard if the platform has one. The [i]existing_text[/i] parameter is useful for implementing your own LineEdit, as it tells the virtual keyboard what text has already been typed (the virtual keyboard uses it for auto-correct and predictions).
			</description>
		</method>
	</methods>
	<members>
		<member name="clipboard" type="String" setter="set_clipboard" getter="get_clipboard">
			The clipboard from the host OS. Might be unavailable on some platforms.
		</member>
		<member name="current_screen" type="int" setter="set_current_screen" getter="get_current_screen">
			The current screen index (starting from 0).
		</member>
		<member name="exit_code" type="int" setter="set_exit_code" getter="get_exit_code">
		</member>
		<member name="keep_screen_on" type="bool" setter="set_keep_screen_on" getter="is_keep_screen_on">
		</member>
		<member name="low_processor_usage_mode" type="bool" setter="set_low_processor_usage_mode" getter="is_in_low_processor_usage_mode">
		</member>
		<member name="screen_orientation" type="int" setter="set_screen_orientation" getter="get_screen_orientation" enum="_OS.ScreenOrientation">
			The current screen orientation.
		</member>
		<member name="vsync_enabled" type="bool" setter="set_use_vsync" getter="is_vsync_enabled">
		</member>
		<member name="window_borderless" type="bool" setter="set_borderless_window" getter="get_borderless_window">
			If [code]true[/code], removes the window frame.
		</member>
		<member name="window_fullscreen" type="bool" setter="set_window_fullscreen" getter="is_window_fullscreen">
			If [code]true[/code], the window is fullscreen.
		</member>
		<member name="window_maximized" type="bool" setter="set_window_maximized" getter="is_window_maximized">
			If [code]true[/code], the window is maximized.
		</member>
		<member name="window_minimized" type="bool" setter="set_window_minimized" getter="is_window_minimized">
			If [code]true[/code], the window is minimized.
		</member>
		<member name="window_position" type="Vector2" setter="set_window_position" getter="get_window_position">
			The window position relative to the screen, the origin is the top left corner, +Y axis goes to the bottom and +X axis goes to the right.
		</member>
		<member name="window_resizable" type="bool" setter="set_window_resizable" getter="is_window_resizable">
			If [code]true[/code], the window is resizable by the user.
		</member>
		<member name="window_size" type="Vector2" setter="set_window_size" getter="get_window_size">
			The size of the window (without counting window manager decorations).
		</member>
	</members>
	<constants>
		<constant name="DAY_SUNDAY" value="0" enum="Weekday">
		</constant>
		<constant name="DAY_MONDAY" value="1" enum="Weekday">
		</constant>
		<constant name="DAY_TUESDAY" value="2" enum="Weekday">
		</constant>
		<constant name="DAY_WEDNESDAY" value="3" enum="Weekday">
		</constant>
		<constant name="DAY_THURSDAY" value="4" enum="Weekday">
		</constant>
		<constant name="DAY_FRIDAY" value="5" enum="Weekday">
		</constant>
		<constant name="DAY_SATURDAY" value="6" enum="Weekday">
		</constant>
		<constant name="MONTH_JANUARY" value="1" enum="Month">
		</constant>
		<constant name="MONTH_FEBRUARY" value="2" enum="Month">
		</constant>
		<constant name="MONTH_MARCH" value="3" enum="Month">
		</constant>
		<constant name="MONTH_APRIL" value="4" enum="Month">
		</constant>
		<constant name="MONTH_MAY" value="5" enum="Month">
		</constant>
		<constant name="MONTH_JUNE" value="6" enum="Month">
		</constant>
		<constant name="MONTH_JULY" value="7" enum="Month">
		</constant>
		<constant name="MONTH_AUGUST" value="8" enum="Month">
		</constant>
		<constant name="MONTH_SEPTEMBER" value="9" enum="Month">
		</constant>
		<constant name="MONTH_OCTOBER" value="10" enum="Month">
		</constant>
		<constant name="MONTH_NOVEMBER" value="11" enum="Month">
		</constant>
		<constant name="MONTH_DECEMBER" value="12" enum="Month">
		</constant>
		<constant name="SCREEN_ORIENTATION_LANDSCAPE" value="0" enum="ScreenOrientation">
		</constant>
		<constant name="SCREEN_ORIENTATION_PORTRAIT" value="1" enum="ScreenOrientation">
		</constant>
		<constant name="SCREEN_ORIENTATION_REVERSE_LANDSCAPE" value="2" enum="ScreenOrientation">
		</constant>
		<constant name="SCREEN_ORIENTATION_REVERSE_PORTRAIT" value="3" enum="ScreenOrientation">
		</constant>
		<constant name="SCREEN_ORIENTATION_SENSOR_LANDSCAPE" value="4" enum="ScreenOrientation">
		</constant>
		<constant name="SCREEN_ORIENTATION_SENSOR_PORTRAIT" value="5" enum="ScreenOrientation">
		</constant>
		<constant name="SCREEN_ORIENTATION_SENSOR" value="6" enum="ScreenOrientation">
		</constant>
		<constant name="SYSTEM_DIR_DESKTOP" value="0" enum="SystemDir">
		</constant>
		<constant name="SYSTEM_DIR_DCIM" value="1" enum="SystemDir">
		</constant>
		<constant name="SYSTEM_DIR_DOCUMENTS" value="2" enum="SystemDir">
		</constant>
		<constant name="SYSTEM_DIR_DOWNLOADS" value="3" enum="SystemDir">
		</constant>
		<constant name="SYSTEM_DIR_MOVIES" value="4" enum="SystemDir">
		</constant>
		<constant name="SYSTEM_DIR_MUSIC" value="5" enum="SystemDir">
		</constant>
		<constant name="SYSTEM_DIR_PICTURES" value="6" enum="SystemDir">
		</constant>
		<constant name="SYSTEM_DIR_RINGTONES" value="7" enum="SystemDir">
		</constant>
		<constant name="POWERSTATE_UNKNOWN" value="0" enum="PowerState">
		</constant>
		<constant name="POWERSTATE_ON_BATTERY" value="1" enum="PowerState">
		</constant>
		<constant name="POWERSTATE_NO_BATTERY" value="2" enum="PowerState">
		</constant>
		<constant name="POWERSTATE_CHARGING" value="3" enum="PowerState">
		</constant>
		<constant name="POWERSTATE_CHARGED" value="4" enum="PowerState">
		</constant>
	</constants>
</class>