我用 vc 创建一个扩展MFC (dll)
在 DllMain函数中使用
if(!AfxOleInit())
return -1;然后在这个文件的头部使用
#import "C:\\Program Files\\Common Files\\System\\ado\\msado15.dll" no_namespace rename("EOF","adoEOF")
结果出现编译错误
如果生成MFC(exe)则没有此错误,我还有什么库没有导入么?
错误如下
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(15) : error C2143: syntax error : missing ',' before '&'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(15) : error C2059: syntax error : '&'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(19) : error C2146: syntax error : missing ';' before identifier 'm_pRecordset'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(19) : error C2501: '_RecordsetPtr' : missing storage-class or type specifiers
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(19) : error C2501: 'm_pRecordset' : missing storage-class or type specifiers
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(20) : error C2146: syntax error : missing ';' before identifier 'm_pConnection'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(20) : error C2501: '_ConnectionPtr' : missing storage-class or type specifiers
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(20) : error C2501: 'm_pConnection' : missing storage-class or type specifiers
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(32) : error C2146: syntax error : missing ';' before identifier 'Execute'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(32) : error C2501: '_RecordsetPtr' : missing storage-class or type specifiers
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(11) : error C2039: 'm_pConnection' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(11) : error C2228: left of '.CreateInstance' must have class/struct/union type
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(11) : error C2065: 'Connection' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(14) : error C2227: left of '->Open' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(14) : error C2065: '_bstr_t' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(14) : error C2146: syntax error : missing ')' before identifier 'strSql'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(14) : error C2059: syntax error : ')'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(16) : error C2061: syntax error : identifier '_com_error'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(16) : error C2310: catch handlers must specify one type
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(18) : error C2065: 'e' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(18) : error C2227: left of '->ErrorMessage' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(21) : error C2317: 'try' block starting on line '13' has no catch handlers
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(21) : error C2039: 'm_pRecordset' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(26) : error C2039: 'm_pRecordset' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(26) : error C2227: left of '->State' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(28) : error C2227: left of '->Close' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(31) : error C2039: 'm_pConnection' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(31) : error C2227: left of '->State' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(33) : error C2039: 'm_pConnection' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(33) : error C2227: left of '->Close' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(34) : error C2039: 'm_pConnection' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(40) : error C2039: 'm_pRecordset' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(40) : error C2228: left of '.CreateInstance' must have class/struct/union type
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(40) : error C2065: 'Recordset' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(43) : error C2227: left of '->GetState' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(43) : error C2065: 'adStateOpen' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(44) : error C2227: left of '->Close' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(45) : error C2227: left of '->Open' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(46) : error C2228: left of '.GetInterfacePtr' must have class/struct/union type
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(47) : error C2065: 'adOpenDynamic' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(47) : error C2065: 'adLockOptimistic' : undeclared identifier
在 DllMain函数中使用
if(!AfxOleInit())
return -1;然后在这个文件的头部使用
#import "C:\\Program Files\\Common Files\\System\\ado\\msado15.dll" no_namespace rename("EOF","adoEOF")
结果出现编译错误
如果生成MFC(exe)则没有此错误,我还有什么库没有导入么?
错误如下
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(15) : error C2143: syntax error : missing ',' before '&'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(15) : error C2059: syntax error : '&'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(19) : error C2146: syntax error : missing ';' before identifier 'm_pRecordset'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(19) : error C2501: '_RecordsetPtr' : missing storage-class or type specifiers
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(19) : error C2501: 'm_pRecordset' : missing storage-class or type specifiers
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(20) : error C2146: syntax error : missing ';' before identifier 'm_pConnection'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(20) : error C2501: '_ConnectionPtr' : missing storage-class or type specifiers
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(20) : error C2501: 'm_pConnection' : missing storage-class or type specifiers
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(32) : error C2146: syntax error : missing ';' before identifier 'Execute'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(32) : error C2501: '_RecordsetPtr' : missing storage-class or type specifiers
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(11) : error C2039: 'm_pConnection' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(11) : error C2228: left of '.CreateInstance' must have class/struct/union type
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(11) : error C2065: 'Connection' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(14) : error C2227: left of '->Open' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(14) : error C2065: '_bstr_t' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(14) : error C2146: syntax error : missing ')' before identifier 'strSql'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(14) : error C2059: syntax error : ')'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(16) : error C2061: syntax error : identifier '_com_error'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(16) : error C2310: catch handlers must specify one type
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(18) : error C2065: 'e' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(18) : error C2227: left of '->ErrorMessage' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(21) : error C2317: 'try' block starting on line '13' has no catch handlers
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(21) : error C2039: 'm_pRecordset' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(26) : error C2039: 'm_pRecordset' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(26) : error C2227: left of '->State' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(28) : error C2227: left of '->Close' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(31) : error C2039: 'm_pConnection' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(31) : error C2227: left of '->State' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(33) : error C2039: 'm_pConnection' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(33) : error C2227: left of '->Close' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(34) : error C2039: 'm_pConnection' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(40) : error C2039: 'm_pRecordset' : is not a member of 'CADOBaseSet'
c:\documents and settings\administrator\桌面\testdll\adobaseset.h(11) : see declaration of 'CADOBaseSet'
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(40) : error C2228: left of '.CreateInstance' must have class/struct/union type
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(40) : error C2065: 'Recordset' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(43) : error C2227: left of '->GetState' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(43) : error C2065: 'adStateOpen' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(44) : error C2227: left of '->Close' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(45) : error C2227: left of '->Open' must point to class/struct/union
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(46) : error C2228: left of '.GetInterfacePtr' must have class/struct/union type
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(47) : error C2065: 'adOpenDynamic' : undeclared identifier
C:\Documents and Settings\Administrator\桌面\testDll\ADOBaseSet.cpp(47) : error C2065: 'adLockOptimistic' : undeclared identifier
看看是不是你想要的
#include "stdafx.h"
#import "C:\\Program Files\\Common Files\\System\\ado\\msado15.dll" no_namespace rename("EOF","adoEOF")
#include <afxdllx.h>#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
static AFX_EXTENSION_MODULE TestDllDLL = { NULL, NULL };extern "C" int APIENTRYDllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
{
// Remove this if you use lpReserved
UNREFERENCED_PARAMETER(lpReserved);
if(!AfxOleInit())
return -1;
if (dwReason == DLL_PROCESS_ATTACH)
{
TRACE0("TESTDLL.DLL Initializing!\n");
// Extension DLL one-time initialization
if (!AfxInitExtensionModule(TestDllDLL, hInstance))
return 0; // Insert this DLL into the resource chain
// NOTE: If this Extension DLL is being implicitly linked to by
// an MFC Regular DLL (such as an ActiveX Control)
// instead of an MFC application, then you will want to
// remove this line from DllMain and put it in a separate
// function exported from this Extension DLL. The Regular DLL
// that uses this Extension DLL should then explicitly call that
// function to initialize this Extension DLL. Otherwise,
// the CDynLinkLibrary object will not be attached to the
// Regular DLL's resource chain, and serious problems will
// result. new CDynLinkLibrary(TestDllDLL);
}
else if (dwReason == DLL_PROCESS_DETACH)
{
TRACE0("TESTDLL.DLL Terminating!\n");
// Terminate the library before destructors are called
AfxTermExtensionModule(TestDllDLL);
}
return 1; // ok
}
#include "stdafx.h"
#include <afxdllx.h>
#import "C:\\Program Files\\Common Files\\System\\ado\\msado15.dll" no_namespace rename("EOF","adoEOF")
STDAFX.H后
出现如下错误
c:\documents and settings\administrator\桌面\testdll\debug\msado15.tlh(171) : error C2011: 'LockTypeEnum' : 'enum' type redefinition
c:\documents and settings\administrator\桌面\testdll\debug\msado15.tlh(214) : error C2011: 'DataTypeEnum' : 'enum' type redefinition
c:\documents and settings\administrator\桌面\testdll\debug\msado15.tlh(258) : error C2011: 'FieldAttributeEnum' : 'enum' type redefinition
c:\documents and settings\administrator\桌面\testdll\debug\msado15.tlh(279) : error C2011: 'EditModeEnum' : 'enum' type redefinition
c:\documents and settings\administrator\桌面\testdll\debug\msado15.tlh(287) : error C2011: 'RecordStatusEnum' : 'enum' type redefinition
c:\documents and settings\administrator\桌面\testdll\debug\msado15.tlh(407) : warning C4146: unary minus operator applied to unsigned type, result still unsigned
c:\documents and settings\administrator\桌面\testdll\debug\msado15.tlh(531) : error C2011: 'ParameterDirectionEnum' : 'enum' type redefinition
这些都是向导生成的
#ifndef _AFX_NO_DB_SUPPORT
#include <afxdb.h> // MFC ODBC database classes
#endif // _AFX_NO_DB_SUPPORT#ifndef _AFX_NO_DAO_SUPPORT
#include <afxdao.h> // MFC DAO database classes
#endif // _AFX_NO_DAO_SUPPORT