1.WINDOWS.H already included. MFC apps must not #include <windows.h>
I just added the #import "C:Program FilesCommon FilesSystemadomsado15.dll" no_namespace rename("EOF","ADOEOF")
in the <StdAfx.h> file. When the import sentence was add in the head of file,the error occured. But when I moved it to the tail of the file,Everything was OK. I don't know why.
// stdafx.h : include file for standard system include files,
// or project specific include files that are used frequently, but
// are changed infrequently
//
//#import "C:Program FilesCommon FilesSystemadomsado15.dll" no_namespace rename("EOF","adoEOF") ////error
#if !defined(AFX_STDAFX_H__C914C8D4_56EB_44CD_AE77_600C6D941BA2__INCLUDED_)
#define AFX_STDAFX_H__C914C8D4_56EB_44CD_AE77_600C6D941BA2__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#define VC_EXTRALEAN // Exclude rarely-used stuff from Windows headers
#include <afxwin.h> // MFC core and standard components
#include <afxext.h> // MFC extensions
#include <afxdisp.h> // MFC Automation classes
#include <afxdtctl.h> // MFC support for Internet Explorer 4 Common Controls
#ifndef _AFX_NO_AFXCMN_SUPPORT
#include <afxcmn.h> // MFC support for Windows Common Controls
#endif // _AFX_NO_AFXCMN_SUPPORT
#import "C:Program FilesCommon FilesSystemadomsado15.dll" no_namespace rename("EOF","ADOEOF") ////is OK
//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
#endif // !defined(AFX_STDAFX_H__C914C8D4_56EB_44CD_AE77_600C6D941BA2__INCLUDED_)
2error C2011: 'DataTypeEnum' : 'enum' type redefinition解决方法
2009-06⑵6 17:36
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1>------ 已启动生成: 项目: iotser, 配置: Debug Win32 ------
1>正在编译...
1>iotser.cpp
1>f:c++ proiocptserdebugmsado15.tlh(228) : error C2011: “LockTypeEnum”: “enum”类型重定义
1> c:program filesmicrosoft sdkswindowsv6.0aincludedbdaoint.h(109) : 参见“LockTypeEnum”的声明
1>f:c++ proiocptserdebugmsado15.tlh(276) : error C2011: “DataTypeEnum”: “enum”类型重定义
1> c:program filesmicrosoft sdkswindowsv6.0aincludedbdaoint.h(138) : 参见“DataTypeEnum”的声明
1>f:c++ proiocptserdebugmsado15.tlh(321) : error C2011: “FieldAttributeEnum”: “enum”类型重定义
1> c:program filesmicrosoft sdkswindowsv6.0aincludedbdaoint.h(127) : 参见“FieldAttributeEnum”的声明
1>f:c++ proiocptserdebugmsado15.tlh(343) : error C2011: “EditModeEnum”: “enum”类型重定义
1> c:program filesmicrosoft sdkswindowsv6.0aincludedbdaoint.h(83) : 参见“EditModeEnum”的声明
1>f:c++ proiocptserdebugmsado15.tlh(352) : error C2011: “RecordStatusEnum”: “enum”类型重定义
1> c:program filesmicrosoft sdkswindowsv6.0aincludedbdaoint.h(341) : 参见“RecordStatusEnum”的声明
1>f:c++ proiocptserdebugmsado15.tlh(616) : error C2011: “ParameterDirectionEnum”: “enum”类型重定义
1> c:program filesmicrosoft sdkswindowsv6.0aincludedbdaoint.h(326) : 参见“ParameterDirectionEnum”的声明
1>f:c++ proiocptseriocptser.cpp(18) : error C2871: “ADODB”: 具有该名称的命名空间不存在
1>生成日志保存在“file://f:C++ proiocptserDebugBuildLog.htm”
1>iocptser - 7 个毛病，0 个正告
========== 生成: 成功 0 个，失败 1 个，最新 0 个，跳过 0 个 ==========
后来经过在csdn上的搜索发现有下面两种办法来解决这个问题
1）
#pragma warning(disable:4146)
#import "C:Program FilesCommon FilesSystemADOmsado15.dll" named_guids rename("EOF","adoEOF"), rename("BOF","adoBOF")
#pragma warning(default:4146)
using namespace ADODB;
2）
#pragma warning(disable:4146)
#import "C:Program FilesCommon FilesSystemadomsado15.dll"
no_namespace
rename("EOF","adoEOF") rename("DataTypeEnum","adoDataTypeEnum")
rename("FieldAttributeEnum", "adoFielAttributeEnum") rename("EditModeEnum", "adoEditModeEnum")
rename("LockTypeEnum", "adoLockTypeEnum") rename("RecordStatusEnum", "adoRecordStatusEnum")
rename("ParameterDirectionEnum", "adoParameterDirectionEnum")
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