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分享帮忙解释一下STDMETHODIMP定义的函数的调用机制，是不是系统自动调用啊？
如下：
STDMETHODIMP_(ULONG) AddRef() { return 2; }
STDMETHODIMP_(ULONG) Release() { return 1; }
STDMETHODIMP_(ULONG) AddRef() { return 2; }
STDMETHODIMP_(ULONG) Release() { return 1; }
...全文
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whitewater_li 2004-01-05
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STDMETHODIMP_
Defines an interface function that returns the specified type. It is used for method implementations.
#define STDMETHODIMP_(type) type STDMETHODCALLTYPE
STDMETHODIMP
Defines an interface function that returns an HRESULT. It is used for method implementations.
#define STDMETHODIMP HRESULT STDMETHODCALLTYPE
Defines an interface function that returns the specified type. It is used for method implementations.
#define STDMETHODIMP_(type) type STDMETHODCALLTYPE
STDMETHODIMP
Defines an interface function that returns an HRESULT. It is used for method implementations.
#define STDMETHODIMP HRESULT STDMETHODCALLTYPE
