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Typical classic API plugins are created by implementing a custom class derived from a base plugin class. This custom implementation must be registered to inform Cinema 4D about it.

• Every classic plugin must register PluginStart() , PluginMessage() and PluginEnd() 。见 插件函数手册 .
• Details on implementing and registering a plugin class are described on 一般插件信息手册 .
• Plugin classes are often based on NodeData , so many plugins can implement NodeData based functions. See NodeData 概述
• Cinema 4D communicates with plugins using various message systems. For an overview see Messages Overview
• Callbacks can be replaced with Delegates. See Delegate Manual (Classic) .