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    • Screen

    Change-screen

    Modifying constructor for screen structures.

    Syntax
    (change-screen x 
                   [:messages <messages>]) 
    

    This is an often useful alternative to make-screen.

    We construct a new screen structure that is a copy of x, except that you can explicitly change some particular fields. Any fields you don't mention just keep their values from x.

    Definition

    This is an ordinary change- macro introduced by fty::defprod.

    Macro: change-screen

    (defmacro change-screen (x &rest args)
      (std::change-aggregate 'screen
                             x args '((:messages . screen->messages))
                             'change-screen
                             'nil))