dual

Статья
10/16/2008

Places an interface in the .idl file as a dual interface.

[dual]

Заметки

When the dual C++ attribute precedes an interface, it causes the interface to be placed inside the library block in the generated .idl file.

Пример

The following code is an attribute block that uses dual before an interface definition:

// cpp_attr_ref_dual.cpp
// compile with: /LD
#include <windows.h>
[module(name="MyLibrary")];

[uuid("2F5F63F1-16DA-11d2-9E7B-00C04FB926DA"), dual]

__interface IStatic : IDispatch 
{
   HRESULT Func1(int i);
   [   propget, 
      id(1), 
      bindable, 
      displaybind, 
      defaultbind, 
      requestedit
   ] 
   HRESULT P1([out, retval] long *nSize);
   [   propput, 
      id(1), 
      bindable, 
      displaybind, 
      defaultbind, 
      requestedit
   ] 
   HRESULT P1([in] long nSize);    
};

[cpp_quote("#include file.h")];