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guiddef.h header

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This header is used by Component Object Model (COM). For more information, see:

guiddef.h contains the following programming interfaces:

Functions

 
IsEqualCLSID

Evaluates to a Boolean value that indicates whether two CLSIDs are equal.
IsEqualGUID

Evaluates to a Boolean value that indicates whether two GUIDs are equal.
IsEqualIID

Evaluates to a Boolean value that indicates whether two IIDs are equal.

Structures

 
GUID

A GUID structure (guiddef.h) identifies an object such as a COM interfaces, or a COM class object, or a manager entry-point vector (EPV).