在 Visual C++ 上使用 msxml6.h 时出错

Errors using msxml6.h on visual c++

本文关键字：msxml6 出错 Visual C++      更新时间：2023-10-16

在Visual Studio 2010中，如果我启动一个控制台项目并 #include 这工作正常，但是如果我启动一个win32项目并 #include，它会在编译过程中返回许多错误。

为什么？

Error    1   error C2146: syntax error : missing ';' before identifier 'IXMLDOMImplementation'   c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    49  1   provamsxml6
Error   2   error C4430: missing type specifier - int assumed. Note: C++ does not support default-int   c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    49  1   provamsxml6
Error   3   error C2146: syntax error : missing ';' before identifier 'IXMLDOMImplementation'   c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    49  1   provamsxml6
Error   4   error C4430: missing type specifier - int assumed. Note: C++ does not support default-int   c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    49  1   provamsxml6
Error   5   error C4430: missing type specifier - int assumed. Note: C++ does not support default-int   c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    49  1   provamsxml6
Error   6   error C2086: 'int IXMLDOMImplementation' : redefinition c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    49  1   provamsxml6
Error   7   error C2146: syntax error : missing ';' before identifier 'IXMLDOMNode' c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    55  1   provamsxml6
Warning 8   warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    55  1   provamsxml6
Error   9   error C2146: syntax error : missing ';' before identifier 'IXMLDOMDocumentFragment' c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    61  1   provamsxml6
Warning 10  warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    61  1   provamsxml6
Error   11  error C2146: syntax error : missing ';' before identifier 'IXMLDOMDocument' c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    67  1   provamsxml6
Warning 12  warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    67  1   provamsxml6
Error   13  error C2146: syntax error : missing ';' before identifier 'IXMLDOMDocument2'    c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    73  1   provamsxml6
Warning 14  warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    73  1   provamsxml6
Error   15  error C2146: syntax error : missing ';' before identifier 'IXMLDOMDocument3'    c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    79  1   provamsxml6
Warning 16  warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    79  1   provamsxml6
Error   17  error C2146: syntax error : missing ';' before identifier 'IXMLDOMNodeList' c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    85  1   provamsxml6
Warning 18  warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    85  1   provamsxml6
Error   19  error C2146: syntax error : missing ';' before identifier 'IXMLDOMNamedNodeMap' c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    91  1   provamsxml6
Warning 20  warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    91  1   provamsxml6
Error   21  error C2146: syntax error : missing ';' before identifier 'IXMLDOMCharacterData'    c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    97  1   provamsxml6
Warning 22  warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    97  1   provamsxml6
Error   23  error C2146: syntax error : missing ';' before identifier 'IXMLDOMAttribute'    c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    103 1   provamsxml6
Warning 24  warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    103 1   provamsxml6
Error   25  error C2146: syntax error : missing ';' before identifier 'IXMLDOMElement'  c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    109 1   provamsxml6
Warning 26  warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    109 1   provamsxml6
Error   27  error C2146: syntax error : missing ';' before identifier 'IXMLDOMText' c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    115 1   provamsxml6
Warning 28  warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    115 1   provamsxml6
Error   29  error C2146: syntax error : missing ';' before identifier 'IXMLDOMComment'  c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    121 1   provamsxml6
Warning 30  warning C4091: '' : ignored on left of 'interface' when no variable is declared c:program files (x86)microsoft sdkswindowsv7.0aincludemsxml6.h    121 1   provamsxml6

缺少的是#include <ole2.h>或其某些部分。
定义WIN32_LEAN_AND_MEAN时，Ole2 是从 Windows.h 中删除的标头之一。
如果定义了 Ole2 INC_OLE2则可以重新添加。

如果您提供标题并且不确定用户可能定义的内容，那么您可以寻求安全

#if !defined(INC_OLE2) && defined(WIN32_LEAN_AND_MEAN)
#include <ole2.h>
#endif
#include <msxml2.h>

问题是 stdafx.h 文件中的 #define WIN32_LEAN_AND_MEAN，请删除此条目以解决。

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