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A string naming the machine where the Motif server is to be found. The default is NIL, which causes a connection to be made using a Unix domain socket on the local machine. Any other name must be a valid machine name, and the client will connect using Internet domain sockets.
Determines the display on which to open windows. The default value of NIL instructs the system to consult the DISPLAY environment variable. Any other value must be a string naming a valid X display.
An integer specifying how many seconds the Lisp process will wait for input before assuming that the connection to the server has timed out.