iunknown.h
Overview
Related Modules:
Description:
Provides the base class and default implementation for external functions of system capabilities.
Since:
1.0
Version:
1.0
Summary
Data Structures
Defines the IUnknown class. |
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Defines the IUnknown implementation class. |
Macros
DEFAULT_VERSION 0x20 |
Defines the default IUnknown version. You can customize the version. |
Defines the macro for inheriting the IUnknown interface. |
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Defines the macro for inheriting the classes that implement the IUnknown interface. |
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Defines the default marco for initializing the IUnknown interface. |
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IUNKNOWN_ENTRY_BEGIN(version) |
Defines the macro for initializing the classes that implement the IUnknown interface. |
IUnknown Defines the end macro for initializing the IUnknown implementation object. |
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GET_IUNKNOWN(T) (IUnknown *)(&((T).iUnknown)) |
Obtains the pointer of the IUnknown interface object from the subclass object T (generic macro) of the IUnknown implementation class. |
Typedefs
typedef struct IUnknownEntry Defines the IUnknown implementation class. |
Functions
IUNKNOWN_AddRef (IUnknown iUnknown) |
Increments the reference count in this IUnknown interface. |
IUNKNOWN_QueryInterface (IUnknown iUnknown, int ver, void *target) |
Queries the IUnknown interfaces of a specified version (downcasting). |
IUNKNOWN_Release (IUnknown iUnknown) |
Releases a reference to an IUnknown interface that is no longer used. |