• getAppInfo subcommand ?option ?value??
Return information about Alpha or other applications. The syntax can take different forms (explained below):

• getAppInfo commands
• getAppInfo current -[bnp]
• getAppInfo darkMode
• getAppInfo host
• getAppInfo identifier ?path?
• getAppInfo mainWindow -[kn]
• getAppInfo name -[bps] value
• getAppInfo osversion
• getAppInfo path -[bnps] value
• getAppInfo pid
• getAppInfo processes
• getAppInfo running -[b] value
• getAppInfo url -[bnps] value
• getAppInfo version
• getAppInfo versionName

The options have the following meaning:

Option	Description
-b	bundle identifier
-k	kind
-n	name
-p	process identifier
-s	application signature

The subcommands have the following meaning:

• The subcommands pid, version, versionName return the process identifier (pid), version number and version name of Alpha itself.
• The subcommand identifier returns the bundle identifier of the application specified by the path argument. If path is not specified, it returns the bundle identifier of Alpha itself.
• The subcommand osversion returns the version number of the OS X system Alpha is running on.
• The subcommand darkMode returns a boolean value indicating whether dark mode is currently enabled. Dark mode is available on Mac OS X 10.14 or greater: on prior versions, this command will always return 0.
• The subcommand host returns the host name of the computer.
• The subcommand commands returns the list of all the core Tcl commands defined by Alpha.
• The processes subcommand returns a list of sublists corresponding to the currently running processes. Each sublist contains four items: the localized name, the process identifier (pid), the bundle identifier and the full path.
• The running subcommand returns a list of process identifiers (pid) for all currently running applications with the specified bundle identifier. If none is running, the command returns an empty list.
• The subcommands name, path, url take as an argument an application designated by its bundle identifier (option -b), its name (option -n), its process identifier if it is a running process (option -p) or its signature (option -s) and return the required information. The -s option is provided as a convenience for compatibility reasons, but the use of signatures is deprecated and should be avoided in favor of the -b option.
• The subcommand mainWindow returns information about Alpha's main window :
  • with the option -k, it indicates the main window's kind: the returned value is "alphadoc" if it is a document window or "viewroot" if it is a root window (created with the [view root] command).
  • with the option -n, it returns the name of the main window if it is a document window (kind alphadoc) or its token if it is a root window (kind "viewroot").
  If there is no main window (or if the application is not active or is hidden), the command returns an empty string.