共用方式為


restricted

Specifies that a member of a module, interface, or dispinterface cannot be called arbitrarily.

[ restricted( 
   interfaces 
) ]

Parameters

  • interfaces
    One or more interfaces that may not be called arbitrarily on a COM object. This parameter is only valid when applied to a class.

Remarks

The restricted C++ attribute has the same functionality as the restricted MIDL attribute.

Example

The following code shows how to use the restricted attribute:

// cpp_attr_ref_restricted.cpp
// compile with: /LD
#include "windows.h"
#include "unknwn.h"
[module(name="MyLib")];

[object, uuid("00000000-0000-0000-0000-000000000001")]
__interface a
{
};

[object, uuid("00000000-0000-0000-0000-000000000002")]
__interface b
{
};

[coclass, restricted(a,b), uuid("00000000-0000-0000-0000-000000000003")]
class c : public a, public b
{
};

Requirements

Attribute Context

Applies to

Interface method, interface, class, struct

Repeatable

No

Required attributes

coclass (when applied to class or struct)

Invalid attributes

None

For more information about the attribute contexts, see Attribute Contexts.

See Also

Other Resources

IDL Attributes

Interface Attributes

Method Attributes

Attributes Samples