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This interface is a simple extension to the IProvideClassInfointerface for the purpose of making it quick and easy to retrieve an object's outgoing interface IID for its default event set.
The mechanism, the added IProvideClassInfo2::GetGUIDmethod, is extensible for other types of GUIDs as well.
When to Implement
An object implements this interface to provide type information for its outgoing interfaces.
When to Use
Call the method in this interface to obtain type information on an object's outgoing interfaces.
Methods
The following table shows the methods for this interface in the order that the compiler calls the methods. Like all COM interfaces, this interface inherits the methods for the IUnknowninterface.
| IUnknown method | Description |
|---|---|
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Returns pointers to supported interfaces. |
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Increments reference count. |
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Decrements reference count. |
| IProvideClassInfo method | Description |
|---|---|
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Returns the ITypeInfointerface for the object's coclasstype information. |
| IProvideClassInfo2 method | Description |
|---|---|
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Returns the GUID for the object's outgoing IID for its default event set. |
Remarks
To determine whether the platform supports this interface, see Determining Supported COM APIs.
Requirements
| Header | ocidl.h, ocidl.idl |
| Library | ole32.lib, uuid.lib |
| Windows Embedded CE | Windows CE 3.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |