object-class

Arguments: object &optional package

Returns the name of a class derived from an arbitrary object. When a command that acts on a class (such as graph-subclasses) is invoked in the Allegro development environment, the default selected-class method finds a class to apply the command to by calling object-class on the selected-object of the selected window. Object-class may return nil if a class cannot be derived in some reasonable way from the object. Object-class is bypassed if there is a more specific selected-class method for a particular command and selected window; these more specific methods sometimes exist when it is not sufficient to funnel through the general selected-object in order to derive a selected-class for the window.

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Created 2015.5.21.