Abstract
AbstractOnly the diehards want to develop applications using basic window system facilities. The preferred approach is a higher‐level “toolkit” of user interface components, such as menus and scroll bars. Experience with current toolkits shows the need for an object‐oriented interface to these components.NeWS, the Network/extensible Window System, allows user interface components to be programmed in PostScript. Fortunately, object‐oriented interfaces are natural in PostScript, and they have been used to create a toolkit with some novel properties. Among these are the use of concurrent processing and run‐time inheritance of component methods.“Postscript is the future of words on paper.”Arthur C. Clarke
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