if one interface is a custom interface,
which means it can only be used by a C or C++ client. But If our coclass also implemented
IDispatch,
then we could write a client in practically anything - Visual Basic, Windows Scripting Host, a web page, PerlScript, etc.
本文探讨了COM接口的概念及其在C++中的特定用途,特别是当我们的类实现IDispatch时,如何使该客户端适用于各种编程语言如Visual Basic、Windows Scripting Host、网页、Perl Script等。
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