class IFileIStream : public IFileStream
{
friend extern "C" __declspec (dllexport) bool __stdcall CreateFileIStream( IFileIStream **ppFileIStream );
protected:
// constructor, etc...
public:
// etc...
}DLL Problem
Author
Hiya,
I'm having some trouble getting my DLL to compile, and I was wondering if anyone could have a quick look and see what the problem is.
At the moment, all it needs to export is a factory function called bool CreateFileIStream( IFileIStream **ppStream );. The constructor of the abstract IFileIStream class needs to be protected, and have the factory function as a friend.
It's a simple design, but because the factory function needs to be exported I'm not sure of the syntax and I can't find any similar examples anywhere.
I can't recall off hand if you can even export single member functions from a dll. How would that work? They aren't static so you would need an instance of the class to call them. And the class wasn't exported?
This may be what you want:
NB. Someone may well point out I'm an idiot and your original solution was correct with a minor syntax error. Buyer beware :-)
Alan
This may be what you want:
class __declspec (dllexport) IFileIStream : public IFileStream{...}NB. Someone may well point out I'm an idiot and your original solution was correct with a minor syntax error. Buyer beware :-)
Alan
Author
Thanks for the reply Alan. I just fixed it, by removing extern "C" - I was trying to declare a friend function that heppened to be exported, not export a single method.
Thanks anyway, appreciated [smile]
Thanks anyway, appreciated [smile]
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement
