:   '''[winfo] server''' ''window''
Returns a platform-specific description of the host system for the [Tk] [widget] called ''window''. Where this is [X11] of some form, the string is highly likely to include a description of the exact version of the protocol in use.
**See also**
   * [tcl_platform]
   * [tk windowingsystem]
   * [platform::identify]

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