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工作学习 / IT技术讨论 / 初学COM，请高手指教，也欢迎初学者讨论。题目是：“如何在多个COM OBJECT之间共享数据？”
-deepyellow(DeepYellow);
2001-5-8
(#64103@0)
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用Singleton and single-threaded model.
-guest:哆嗦;
2001-5-9
(#64999@0)
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果然是高手，两句话我就~！·#￥%。：-）。Singleton是否指Singleton的COM？COM中好象不能用STATIC VARIABLE吧？如果这样，怎样保持数据？能否解释一下SINGLE-THREADED MODEL？谢谢！
-deepyellow(DeepYellow);
2001-5-10
(#66239@0)
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你这么说我越发哆嗦了. 从前做过一个项目有类似的问题, 附上当时的技术纪录, 只供参考, 再多咱也不会了. 另外static可以用.
-guest:哆嗦;
2001-5-10
{2631}
(#66357@0)
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谢谢指教。太深了，留此存档，以后慢慢体会。STATIC member VARIABLE 在COM中可以用吗？为什么在VC中用了STATIC MEMBER VARIABLE 后出现“error LNK2001: unresolved external symbol "private: static long CJobID::m_nID" (?m_nID@CJobID@@0JA)”？
-deepyellow(DeepYellow);
2001-5-11
(#67302@0)
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没有用过static member variable in class, 在class外用static定义好象可以. 太复杂的东东我也搞不懂, 好象是VC compiler会产生个内部variable name or function name for class members.
-guest:哆嗦;
2001-5-11
(#67314@0)
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You only declared the static member, you need to define it (initialize ) somewhere in the .cpp file. strictly speaking, C++ forbids initializing static member variable in the class declaration(.h file), unless it is a constant integer type.
-numnum(numnum);
2001-5-11
(#67344@0)
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有道理。不好意思，看来还是基本功不过关。初了参数传递外，有没有简便的机制实现COM内外的数据传递？
-deepyellow(DeepYellow);
2001-5-13
(#69465@0)