'''tk appname''' ''?newName?''

If ''newName'' isn't specified, this command returns the name of the application (the name that may be used in [send] commands to communicate with the application). If ''newName'' is specified, then the name of the application is changed to ''newName''. If the given name is already in use, then a suffix of the form "'''#2'''" or "'''#3'''" is appended in order to make the name unique. The command's result is the name actually chosen. ''newName'' should not start with a capital letter. This will interfere with option processing, since names starting with capitals are assumed to be classes; as a result, Tk may not be able to find some options for the application. If sends have been disabled by deleting the [send] command, this command will reenable them and recreate the [send] command.

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[Category Command]