Article ID: 185284
Article Last Modified on 10/24/2003
APPLIES TO
- Microsoft Visual C++ 5.0 Enterprise Edition
- Microsoft Visual C++ 5.0 Professional Edition
This article was previously published under Q185284
SYMPTOMS
When using the #import directive on a type library with a method containing
a GUID as a parameter, or methods containing a structure that contains a
GUID as a parameter, you might encounter one of the following error
messages:
C2664: 'Method1' : cannot convert parameter 1 from 'struct _GUID *' to
'struct GUID *'
C2664: 'raw_Method2' : cannot convert parameter 1 from 'struct GUID' to
'struct GUID'
C2079: 'm_guid' uses undefined struct 'GUID'
You might also encounter one of these error messages when you use
parameters of type IID, CLSID, FMTID, UUID, CATID, and references to these
types (REFGUID, REFIID, etc.).
CAUSE
The #import statement incorrectly interprets struct _GUID as struct GUID.
GUID is only a typedef for struct _GUID.
RESOLUTION
Use the "rename" attribute with #import to replace the string GUID with
_GUID. For example:
#import "myproject.tlb" rename("GUID", "_GUID")
STATUS
Microsoft has confirmed this to be a bug in the Microsoft products
listed at the beginning of this article. This bug has been corrected in
Microsoft Visual C++, version 6.0.
REFERENCES
Microsoft Visual C++ Help: search on "#import"
(c) Microsoft Corporation 1998, All Rights Reserved. Contributions by
Jaganathan Thangavelu, Microsoft Corporation
Additional query words: kbVC500bug kbCompiler kbCOMt kbDSupport kbdsd
Keywords: kberrmsg kbbug kbfix kbvc600fix KB185284