PRB: "QueryInterface:function does not take 1 parameters" Error (194862)
The information in this article applies to:
- The Microsoft Active Template Library (ATL) 3.0, when used with:
- Microsoft Visual C++, 32-bit Enterprise Edition 6.0
- Microsoft Visual C++, 32-bit Professional Edition 6.0
- Microsoft Visual C++, 32-bit Learning Edition 6.0
- Microsoft Visual C++ .NET (2003)
- Microsoft Visual C++ .NET (2002)
This article was previously published under Q194862 SYMPTOMS When you build an ATL project, you may get the following
compiler error: c:\program files\microsoft visual
studio\vc98\atl\include\atlcom.h(3331) : error C2660: 'QueryInterface' :
function does not take 1 parameters CAUSE In Visual C++ 6.0, a templated version of QueryInterface(),
which takes one parameter (instead of the usual two), was added to IUnknown. In
ATL 3.0, CComTypeInfoHolder::GetTI() uses this templated version of
QueryInterface(). If you have an older version of Unknwn.h in your Include
path, you get this compiler error. For example, having the Platform SDK Include
directory in front of the \VC98\Include directory causes this problem.
RESOLUTION Replace the Unknwn.h in the other Include directory with
the one from the Visual C++ 6.0 Include directory. STATUS This behavior is by design. REFERENCES (c) Microsoft Corporation 1998, All Rights Reserved.
Contributions by Samson Tanrena, Microsoft Corporation.
| Modification Type: | Major | Last Reviewed: | 9/22/2003 |
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| Keywords: | kberrmsg kbFAQ kbprb kbtemplate KB194862 |
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