nonextensible

[uuid, nonextensible [, optional-attribute-list] interface | dispinterface interface-name {interface-definitions}

Examples

library Hello
{
[uuid( . . .), helpstring("A helpful description."),
  oleautomation, dual, nonextensible] interface IHello : IDispatch
    {. . .}; 
 

Remarks

By default, OLE Automation assumes that interfaces may add members at run time; that is, it assumes they are extensible. The nonextensible attribute 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.

You can apply the nonextensible attribute to either an interface or a dispinterface. However, an interface must also have the dual and oleautomation attributes.

Flags

TYPEFLAG_FNONEXTENSIBLE

See Also

TYPEFLAGS, interface, dispinterface, Generating a Type Library With MIDL, Contents of a Type Library, ODL File Syntax, TYPEFLAGS