MFC Support in ATL COM

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So what would you suggest, I have resolved the ambuguity errors by making slight modification. For example
Previously it was..

CEdit m_ctlUsedDuration;

I changed it to

MIDL

WTL::CEdit m_ctlUsedDuration;

Now the compiler is able to recognize that these classes belong to ATL not MFC, however it has spawn to some new errors listed below

1>LINK : warning LNK4199: /DELAYLOAD:OleAcc.dll ignored; no imports found from OleAcc.dll
1>UndoBox.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowInvalidArgException(void)" (?AfxThrowInvalidArgException@@YGXXZ)
1>Utils.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowInvalidArgException(void)" (?AfxThrowInvalidArgException@@YGXXZ)
1>Plug_In.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowInvalidArgException(void)" (?AfxThrowInvalidArgException@@YGXXZ)
1>Project_Interface_Reports.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowInvalidArgException(void)" (?AfxThrowInvalidArgException@@YGXXZ)
1>Project_Native.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowInvalidArgException(void)" (?AfxThrowInvalidArgException@@YGXXZ)
1>Project_Reports.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowInvalidArgException(void)" (?AfxThrowInvalidArgException@@YGXXZ)
1>AddIn.obj : error LNK2019: unresolved external symbol "void __stdcall AfxThrowInvalidArgException(void)" (?AfxThrowInvalidArgException@@YGXXZ) referenced in function "int __cdecl AfxCrtErrorCheck(int)" (?AfxCrtErrorCheck@@YAHH@Z)
1>Connect.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowInvalidArgException(void)" (?AfxThrowInvalidArgException@@YGXXZ)
1>FilterBox.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowInvalidArgException(void)" (?AfxThrowInvalidArgException@@YGXXZ)
1>InputBox.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowInvalidArgException(void)" (?AfxThrowInvalidArgException@@YGXXZ)
1>Utils.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>Project_Native.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>Project_Reports.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>Trial.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>UndoBox.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>InputBox.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>Plug_In.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>Project.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>Project_Interface_Reports.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>AddIn.obj : error LNK2019: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ) referenced in function "int __cdecl AfxCrtErrorCheck(int)" (?AfxCrtErrorCheck@@YAHH@Z)
1>Application.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>Connect.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>FilterBox.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowMemoryException(void)" (?AfxThrowMemoryException@@YGXXZ)
1>Project_Reports.obj : error LNK2019: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z) referenced in function "public: __thiscall std::vector<class CCPM::CTaskError,class std::allocator<class CCPM::CTaskError> >::vector<class CCPM::CTaskError,class std::allocator<class CCPM::CTaskError> >(class std::vector<class CCPM::CTaskError,class std::allocator<class CCPM::CTaskError> > const &)" (??0?$vector@VCTaskError@CCPM@@V?$allocator@VCTaskError@CCPM@@@std@@@std@@QAE@ABV01@@Z)
1>Trial.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z)
1>UndoBox.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z)
1>Utils.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z)
1>Plug_In.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z)
1>Project.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z)
1>Project_Interface_Reports.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z)
1>Project_Native.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z)
1>Application.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z)
1>Connect.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z)
1>FilterBox.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z)
1>InputBox.obj : error LNK2001: unresolved external symbol "void __stdcall AfxThrowOleException(long)" (?AfxThrowOleException@@YGXJ@Z)
1>Connect.obj : error LNK2019: unresolved external symbol "public: void __thiscall CException::Delete(void)" (?Delete@CException@@QAEXXZ) referenced in function __catch$?CreateInstance@?$CComCreator@V?$CComObjectCached@VCComClassFactory@ATL@@@ATL@@@ATL@@SGJPAXABU_GUID@@PAPAX@Z$0
1>FilterBox.obj : error LNK2001: unresolved external symbol "public: void __thiscall CException::Delete(void)" (?Delete@CException@@QAEXXZ)
1>Plug_In.obj : error LNK2001: unresolved external symbol "public: void __thiscall CException::Delete(void)" (?Delete@CException@@QAEXXZ)
1>UndoBox.obj : error LNK2001: unresolved external symbol "public: void __thiscall CException::Delete(void)" (?Delete@CException@@QAEXXZ)
1>InputBox.obj : error LNK2019: unresolved external symbol "struct HINSTANCE__ * __stdcall AfxFindStringResourceHandle(unsigned int)" (?AfxFindStringResourceHandle@@YGPAUHINSTANCE__@@I@Z) referenced in function "public: static struct HINSTANCE__ * __cdecl StrTraitMFC<wchar_t,class ATL::ChTraitsCRT<wchar_t> >::FindStringResourceInstance(unsigned int)" (?FindStringResourceInstance@?$StrTraitMFC@_WV?$ChTraitsCRT@_W@ATL@@@@SAPAUHINSTANCE__@@I@Z)
1>Project_Interface_Reports.obj : error LNK2001: unresolved external symbol "struct HINSTANCE__ * __stdcall AfxFindStringResourceHandle(unsigned int)" (?AfxFindStringResourceHandle@@YGPAUHINSTANCE__@@I@Z)
1>Project_Reports.obj : error LNK2001: unresolved external symbol "struct HINSTANCE__ * __stdcall AfxFindStringResourceHandle(unsigned int)" (?AfxFindStringResourceHandle@@YGPAUHINSTANCE__@@I@Z)
1>Utils.obj : error LNK2001: unresolved external symbol "struct HINSTANCE__ * __stdcall AfxFindStringResourceHandle(unsigned int)" (?AfxFindStringResourceHandle@@YGPAUHINSTANCE__@@I@Z)
1>InputBox.obj : error LNK2019: unresolved external symbol "struct ATL::IAtlStringMgr * __stdcall AfxGetStringManager(void)" (?AfxGetStringManager@@YGPAUIAtlStringMgr@ATL@@XZ) referenced in function "public: static struct ATL::IAtlStringMgr * __cdecl StrTraitMFC<wchar_t,class ATL::ChTraitsCRT<wchar_t> >::GetDefaultManager(void)" (?GetDefaultManager@?$StrTraitMFC@_WV?$ChTraitsCRT@_W@ATL@@@@SAPAUIAtlStringMgr@ATL@@XZ)
1>Project_Interface_Reports.obj : error LNK2001: unresolved external symbol "struct ATL::IAtlStringMgr * __stdcall AfxGetStringManager(void)" (?AfxGetStringManager@@YGPAUIAtlStringMgr@ATL@@XZ)
1>Project_Reports.obj : error LNK2001: unresolved external symbol "struct ATL::IAtlStringMgr * __stdcall AfxGetStringManager(void)" (?AfxGetStringManager@@YGPAUIAtlStringMgr@ATL@@XZ)
1>Utils.obj : error LNK2001: unresolved external symbol "struct ATL::IAtlStringMgr * __stdcall AfxGetStringManager(void)" (?AfxGetStringManager@@YGPAUIAtlStringMgr@ATL@@XZ)
1>Trial.obj : error LNK2019: unresolved external symbol "public: virtual __thiscall CFont::~CFont(void)" (??1CFont@@UAE@XZ) referenced in function "protected: long __thiscall CCPM::Dialogs::CTrial::OnInitDialog(unsigned int,unsigned int,long,int &)" (?OnInitDialog@CTrial@Dialogs@CCPM@@IAEJIIJAAH@Z)
1>Trial.obj : error LNK2019: unresolved external symbol "public: __thiscall CFont::operator struct HFONT__ *(void)const " (??BCFont@@QBEPAUHFONT__@@XZ) referenced in function "protected: long __thiscall CCPM::Dialogs::CTrial::OnInitDialog(unsigned int,unsigned int,long,int &)" (?OnInitDialog@CTrial@Dialogs@CCPM@@IAEJIIJAAH@Z)
1>Trial.obj : error LNK2019: unresolved external symbol "public: int __thiscall CFont::CreateFontW(int,int,int,int,int,unsigned char,unsigned char,unsigned char,unsigned char,unsigned char,unsigned char,unsigned char,unsigned char,wchar_t const *)" (?CreateFontW@CFont@@QAEHHHHHHEEEEEEEEPB_W@Z) referenced in function "protected: long __thiscall CCPM::Dialogs::CTrial::OnInitDialog(unsigned int,unsigned int,long,int &)" (?OnInitDialog@CTrial@Dialogs@CCPM@@IAEJIIJAAH@Z)
1>Trial.obj : error LNK2019: unresolved external symbol "public: __thiscall CFont::CFont(void)" (??0CFont@@QAE@XZ) referenced in function "protected: long __thiscall CCPM::Dialogs::CTrial::OnInitDialog(unsigned int,unsigned int,long,int &)" (?OnInitDialog@CTrial@Dialogs@CCPM@@IAEJIIJAAH@Z)
1>Debug/CCPM.dll : fatal error LNK1120: 10 unresolved externals

So can you help me in resolving these errors? I didn't mess up with any of the .lib file used. I guess once this thing is resolved I will be able to implement MFC with this project.

Otherwise you are always welcomed to tell me alternatives

Thanks in Advance

Posted 10-Feb-10 19:50pm

Adeel Mirza

Updated 11-Feb-10 5:20am

Chris Maunder772.7K

v2

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2 solutions

Solution 2

This project already has 100s of files, resources. Creating a new ATL Project and adding all these files is not gonna be fun. These erroes comes if my active build is Debug mode, In Release mode I just receive 2 errors

<pre lang="msil">1>uafxcw.lib(dllmodul.obj) : error LNK2005: _DllMain@12 already defined in AddIn.obj
1>   Creating library Release/CCPM.lib and object Release/CCPM.exp
1>Release/CCPM.dll : fatal error LNK1169: one or more multiply defined symbols found

Posted 18-Feb-10 1:38am

Adeel Mirza

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peterchen · Accepted Answer · 2010-02-13T22:14:00

You are still using MFC, but don't link to it.

The easiest way I found is to recreate the Project as ATL project, tick "MFC support" in the wizard and re-add / merge the files.

btw. it would be more reader-friendly if you wouldn't just dump the linker output but listed what you figured out from it - e.g. listing the symbols that are not found.