IErrorInfo Interface

The IErrorInfointerface provides detailed contextual error information.

Implemented by	Used by	Header filename	Import library name
Oleaut32.dll (32-bit systems) Ole2disp.dll (16-bit systems)	Applications that receive rich information.	Oleauto.h Dispatch.h	Oleaut32.lib Oledisp.lib

Implemented by

Used by

Header filename

Import library name

Oleaut32.dll (32-bit systems)

Ole2disp.dll (16-bit systems)

Applications that receive rich information.

Oleauto.h

Dispatch.h

Oleaut32.lib

Oledisp.lib

Methods in Vtable Order

IUnknown Methods	Description
QueryInterface	Returns pointers to supported interfaces.
AddRef	Increments reference count.
Release	Decrements reference count.

IErrorInfo Methods	Description
GetDescription	Returns a textual description of the error.
GetGUID	Returns the globally unique identifier (GUID) for the interface that defined the error.
GetHelpContext	Returns the Help context identifier (ID) for the error.
GetHelpFile	Returns the path of the Help file that describes the error.
GetSource	Returns the programmatic identifier (ProgID) for the class or application that returned the error.