Operating System functions. Operating System functions. OS wraps the most common functionality to communicate with the host operating system, such as the clipboard, video driver, date and time, timers, environment variables, execution of binaries, command line, etc. https://godotengine.org/asset-library/asset/677 Returns [code]true[/code] if the current host platform is using multiple threads. Shuts down system MIDI driver. [b]Note:[/b] This method is implemented on Linux, macOS and Windows. Creates a new process that runs independently of Godot. It will not terminate if Godot terminates. The file specified in [code]path[/code] must exist and be executable. Platform path resolution will be used. The [code]arguments[/code] are used in the given order and separated by a space. If the process creation succeeds, the method will return the new process ID, which you can use to monitor the process (and potentially terminate it with [method kill]). If the process creation fails, the method will return [code]-1[/code]. For example, running another instance of the project: [codeblocks] [gdscript] var pid = OS.create_process(OS.get_executable_path(), []) [/gdscript] [csharp] var pid = OS.CreateProcess(OS.GetExecutablePath(), new string[] {}); [/csharp] [/codeblocks] See [method execute] if you wish to run an external command and retrieve the results. [b]Note:[/b] This method is implemented on Android, iOS, Linux, macOS and Windows. Delay execution of the current thread by [code]msec[/code] milliseconds. [code]usec[/code] must be greater than or equal to [code]0[/code]. Otherwise, [method delay_msec] will do nothing and will print an error message. Delay execution of the current thread by [code]usec[/code] microseconds. [code]usec[/code] must be greater than or equal to [code]0[/code]. Otherwise, [method delay_usec] will do nothing and will print an error message. Dumps the memory allocation ringlist to a file (only works in debug). Entry format per line: "Address - Size - 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. Executes a command. The file specified in [code]path[/code] must exist and be executable. Platform path resolution will be used. The [code]arguments[/code] are used in the given order and separated by a space. If an [code]output[/code] [Array] is provided, the complete shell output of the process will be appended as a single [String] element in [code]output[/code]. If [code]read_stderr[/code] is [code]true[/code], the output to the standard error stream will be included too. If the command is successfully executed, the method will return the exit code of the command, or [code]-1[/code] if it fails. [b]Note:[/b] The Godot thread will pause its execution until the executed command terminates. Use [Thread] to create a separate thread that will not pause the Godot thread, or use [method create_process] to create a completely independent process. For example, to retrieve a list of the working directory's contents: [codeblocks] [gdscript] var output = [] var exit_code = OS.execute("ls", ["-l", "/tmp"], output) [/gdscript] [csharp] var output = new Godot.Collections.Array(); int exitCode = OS.Execute("ls", new string[] {"-l", "/tmp"}, output); [/csharp] [/codeblocks] To execute a composite command, a platform-specific shell can be invoked. For example: [codeblocks] [gdscript] var output = [] OS.execute("CMD.exe", ["/C", "cd %TEMP% && dir"], output) [/gdscript] [csharp] var output = new Godot.Collections.Array(); OS.Execute("CMD.exe", new string[] {"/C", "cd %TEMP% && dir"}, output); [/csharp] [/codeblocks] [b]Note:[/b] This method is implemented on Android, iOS, Linux, macOS and Windows. Returns the keycode of the given string (e.g. "Escape"). Returns the command-line arguments passed to the engine. Command-line arguments can be written in any form, including both [code]--key value[/code] and [code]--key=value[/code] forms so they can be properly parsed, as long as custom command-line arguments do not conflict with engine arguments. You can also incorporate environment variables using the [method get_environment] method. You can set [member ProjectSettings.editor/run/main_run_args] to define command-line arguments to be passed by the editor when running the project. Here's a minimal example on how to parse command-line arguments into a dictionary using the [code]--key=value[/code] form for arguments: [codeblocks] [gdscript] var arguments = {} for argument in OS.get_cmdline_args(): if argument.find("=") > -1: var key_value = argument.split("=") arguments[key_value[0].lstrip("--")] = key_value[1] [/gdscript] [csharp] var arguments = new Godot.Collections.Dictionary(); foreach (var argument in OS.GetCmdlineArgs()) { if (argument.Find("=") > -1) { string[] keyValue = argument.Split("="); arguments[keyValue[0].LStrip("--")] = keyValue[1]; } } [/csharp] [/codeblocks] Returns an array of MIDI device names. The returned array will be empty if the system MIDI driver has not previously been initialised with [method open_midi_inputs]. [b]Note:[/b] This method is implemented on Linux, macOS and Windows. Returns current date as a dictionary of keys: [code]year[/code], [code]month[/code], [code]day[/code], [code]weekday[/code], [code]dst[/code] (Daylight Savings Time). Returns current datetime as a dictionary of keys: [code]year[/code], [code]month[/code], [code]day[/code], [code]weekday[/code], [code]dst[/code] (Daylight Savings Time), [code]hour[/code], [code]minute[/code], [code]second[/code]. Gets a dictionary of time values corresponding to the given UNIX epoch time (in seconds). The returned Dictionary's values will be the same as [method get_datetime], with the exception of Daylight Savings Time as it cannot be determined from the epoch. Returns the value of an environment variable. Returns an empty string if the environment variable doesn't exist. [b]Note:[/b] Double-check the casing of [code]variable[/code]. Environment variable names are case-sensitive on all platforms except Windows. Returns the path to the current engine executable. With this function you can get the list of dangerous permissions that have been granted to the Android application. [b]Note:[/b] This method is implemented on Android. Returns the given keycode as a string (e.g. Return values: [code]"Escape"[/code], [code]"Shift+Escape"[/code]). See also [member InputEventKey.keycode] and [method InputEventKey.get_keycode_with_modifiers]. Returns the host OS locale as a string of the form [code]language_Script_COUNTRY_VARIANT@extra[/code]. [code]language[/code] - 2 or 3-letter [url=https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes]language code[/url], in lower case. [code]Script[/code] - optional, 4-letter [url=https://en.wikipedia.org/wiki/ISO_15924]script code[/url], in title case. [code]COUNTRY[/code] - optional, 2 or 3-letter [url=https://en.wikipedia.org/wiki/ISO_3166-1]country code[/url], in upper case. [code]VARIANT[/code] - optional, language variant, region and sort order. Variant can have any number of underscored key words. [code]extra[/code] - optional, semicolon separated list of additional key words. Currency, calendar, sort order and numbering system information. Returns the model name of the current device. [b]Note:[/b] This method is implemented on Android and iOS. Returns [code]"GenericDevice"[/code] on unsupported platforms. Returns the name of the host OS. Possible values are: [code]"Android"[/code], [code]"iOS"[/code], [code]"HTML5"[/code], [code]"OSX"[/code], [code]"Server"[/code], [code]"Windows"[/code], [code]"UWP"[/code], [code]"X11"[/code]. Returns the project's process ID. [b]Note:[/b] This method is implemented on Android, iOS, Linux, macOS and Windows. Returns the number of threads available on the host machine. Returns the maximum amount of static memory used (only works in debug). Returns the amount of static memory being used by the program in bytes. Returns the actual path to commonly used folders across different platforms. Available locations are specified in [enum SystemDir]. [b]Note:[/b] This method is implemented on Android, Linux, macOS and Windows. Returns the ID of the current thread. This can be used in logs to ease debugging of multi-threaded applications. [b]Note:[/b] Thread IDs are not deterministic and may be reused across application restarts. Returns the amount of time passed in milliseconds since the engine started. Returns the amount of time passed in microseconds since the engine started. Returns current time as a dictionary of keys: hour, minute, second. Returns the current time zone as a dictionary with the keys: bias and name. Returns a string that is unique to the device. [b]Note:[/b] This string may change without notice if the user reinstalls/upgrades their operating system or changes their hardware. This means it should generally not be used to encrypt persistent data as the data saved prior to an unexpected ID change would become inaccessible. The returned string may also be falsified using external programs, so do not rely on the string returned by [method get_unique_id] for security purposes. [b]Note:[/b] Returns an empty string on HTML5 and UWP, as this method isn't implemented on those platforms yet. Returns the current UNIX epoch timestamp in seconds. [b]Important:[/b] This is the system clock that the user can manually set. [b]Never use[/b] this method for precise time calculation since its results are also subject to automatic adjustments by the operating system. [b]Always use[/b] [method get_ticks_usec] or [method get_ticks_msec] for precise time calculation instead, since they are guaranteed to be monotonic (i.e. never decrease). Gets an epoch time value from a dictionary of time values. [code]datetime[/code] must be populated with the following keys: [code]year[/code], [code]month[/code], [code]day[/code], [code]hour[/code], [code]minute[/code], [code]second[/code]. If the dictionary is empty [code]0[/code] is returned. You can pass the output from [method get_datetime_from_unix_time] directly into this function. Daylight Savings Time ([code]dst[/code]), if present, is ignored. 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. [code]%APPDATA%[/code] expands to [code]%USERPROFILE%\AppData\Roaming[/code]. If the project name is empty, [code]user://[/code] falls back to [code]res://[/code]. Returns [code]true[/code] if the environment variable with the name [code]variable[/code] exists. [b]Note:[/b] Double-check the casing of [code]variable[/code]. Environment variable names are case-sensitive on all platforms except Windows. Returns [code]true[/code] if the feature for the given feature tag is supported in the currently running instance, depending on platform, build etc. Can be used to check whether you're currently running a debug build, on a certain platform or arch, etc. Refer to the [url=https://docs.godotengine.org/en/latest/getting_started/workflow/export/feature_tags.html]Feature Tags[/url] documentation for more details. [b]Note:[/b] Tag names are case-sensitive. Returns [code]true[/code] if the Godot binary used to run the project is a [i]debug[/i] export template, or when running in the editor. Returns [code]false[/code] if the Godot binary used to run the project is a [i]release[/i] export template. To check whether the Godot binary used to run the project is an export template (debug or release), use [code]OS.has_feature("standalone")[/code] instead. Returns [code]true[/code] if the input keycode corresponds to a Unicode character. Returns [code]true[/code] if the engine was executed with [code]-v[/code] (verbose stdout). 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. Kill (terminate) the process identified by the given process ID ([code]pid[/code]), e.g. the one returned by [method execute] in non-blocking mode. [b]Note:[/b] This method can also be used to kill processes that were not spawned by the game. [b]Note:[/b] This method is implemented on Android, iOS, Linux, macOS and Windows. Initialises the singleton for the system MIDI driver. [b]Note:[/b] This method is implemented on Linux, macOS and Windows. Shows all resources in the game. Optionally, the list can be written to a file by specifying a file path in [code]tofile[/code]. Shows the list of loaded textures sorted by size in memory. Shows the number of resources loaded by the game of the given types. Shows all resources currently used by the game. At the moment this function is only used by [code]AudioDriverOpenSL[/code] to request permission for [code]RECORD_AUDIO[/code] on Android. With this function you can request dangerous permissions since normal permissions are automatically granted at install time in Android application. [b]Note:[/b] This method is implemented on Android. Sets the value of the environment variable [code]variable[/code] to [code]value[/code]. The environment variable will be set for the Godot process and any process executed with [method execute] after running [method set_environment]. The environment variable will [i]not[/i] persist to processes run after the Godot process was terminated. [b]Note:[/b] Double-check the casing of [code]variable[/code]. Environment variable names are case-sensitive on all platforms except Windows. Sets the name of the current thread. Enables backup saves if [code]enabled[/code] is [code]true[/code]. 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 user's Downloads folder. - [code]OS.shell_open("https://godotengine.org")[/code] opens the default web browser on the official Godot website. - [code]OS.shell_open("mailto:example@example.com")[/code] opens the default email client with the "To" field set to [code]example@example.com[/code]. See [url=https://blog.escapecreative.com/customizing-mailto-links/]Customizing [code]mailto:[/code] Links[/url] for a list of fields that can be added. Use [method ProjectSettings.globalize_path] to convert a [code]res://[/code] or [code]user://[/code] path into a system path for use with this method. [b]Note:[/b] This method is implemented on Android, iOS, HTML5, Linux, macOS and Windows. If [code]true[/code], the engine optimizes for low processor usage by only refreshing the screen if needed. Can improve battery consumption on mobile. The amount of sleeping between frames when the low-processor usage mode is enabled (in microseconds). Higher values will result in lower CPU usage. The GLES2 rendering backend. It uses OpenGL ES 2.0 on mobile devices, OpenGL 2.1 on desktop platforms and WebGL 1.0 on the web. The Vulkan rendering backend. Sunday. Monday. Tuesday. Wednesday. Thursday. Friday. Saturday. January. February. March. April. May. June. July. August. September. October. November. December. Desktop directory path. DCIM (Digital Camera Images) directory path. Documents directory path. Downloads directory path. Movies directory path. Music directory path. Pictures directory path. Ringtones directory path.