The way Windows does events, with its omniversal window proc and type-deadly WPARAM/LPARAM parameters, is downright primitive by modern programming standards.
Windows 处理事件的方式完全是通过窗口过程以及一成不变的 WPARAM/LPARAM 参数，按照现代编程标准来说，简陋而粗糙。
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Encoded refers to Section-5 of the SOAP specification, which defines a primitive mechanism for mapping programming language types to XML.