c++ - 如何深复制一个IDataObject接口对象？

Question

请教大家一个问题？
有没有办法深复制一个IDataObject接口对象？
这貌似和COM的设计原则相违背,但是现在确实有这样的需求
不知道有没有什么好办法？

Answer 1

There is probably no universal solution.
Any COM program can implement an IDataObject by itself, and the data in it can be in a format that you don't understand at all. There is no mandatory rule on where the data should be placed. All you can do is give a format and let the DataObject put it in The data will be transferred and returned to you.
I think your request is wrong. Can you tell me what exactly you want to do?