nonextensible
The latest version of this topic can be found at nonextensible.
Specifies that the IDispatch implementation includes only the properties and methods listed in the interface description and cannot be extended with additional members at run time.
Syntax
[nonextensible]
Remarks
The nonextensible C++ attribute has the same functionality as the nonextensible MIDL attribute.
Use of nonextensible also requires the oleautomation attribute.
Example
The following code shows one use of the nonextensible attribute:
// cpp_attr_ref_nonextensible.cpp
// compile with: /LD
#include "unknwn.h"
[module(name="ATLFIRELib")];
[export] typedef long HRESULT;
[dual, nonextensible, ms_union, oleautomation,
uuid("00000000-0000-0000-0000-000000000001")]
__interface IFireTabCtrl
{
HRESULT procedure (int i);
};
Requirements
Attribute Context
| Applies to | interface |
| Repeatable | No |
| Required attributes | dual and oleautomation, or dispinterface |
| Invalid attributes | None |
For more information about the attribute contexts, see Attribute Contexts.