Unicode linker errors

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   Hi,
I'm getting problems building a very simple project with Unicode support when using XTPro 8.70 and VisualStudio 7.1. The process is easy to repeat:
1. Create a new project in VisualStudio: MFC MDI Application, use all defaults
2. Follow the steps described in the "XTPro Users Guide", "Tutorials - Create an application that has Office style toolbars and menus"
This compiles and runs OK. Now:
3. In the project settings, set "Use Unicode Character Set" and define "_UNICODE" in the preprocessor settings.
Now compiles with the following errors:

MainFrm.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class CXTPToolBar * __thiscall CXTPCommandBars::Add(class ATL::CStringT<wchar_t,class StrTraitMFC_DLL<wchar_t,class ATL::ChTraitsCRT<wchar_t> > >,enum XTPBarPosition,struct CRuntimeClass *)"  (__imp_?Add@CXTPCommandBars@@QAEPAVCXTPToolBar@@V?$CStringT@ _WV?$StrTraitMFC_DLL@_WV?$ChTraitsCRT@_W@ATL@@@@@ATL@@W4XTPB arPosition@@PAUCRuntimeClass@@@Z)  referenced in function "protected: int __thiscall CMainFrame::OnCreate(struct tagCREATESTRUCTW *)" (?OnCreate@CMainFrame@@IAEHPAUtagCREATESTRUCTW@@@Z)
MainFrm.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class CXTPMenuBar * __thiscall CXTPCommandBars::SetMenu(class ATL::CStringT<wchar_t,class StrTraitMFC_DLL<wchar_t,class ATL::ChTraitsCRT<wchar_t> > >,unsigned int)"  (__imp_?SetMenu@CXTPCommandBars@@QAEPAVCXTPMenuBar@@V?$CStri ngT@_WV?$StrTraitMFC_DLL@_WV?$ChTraitsCRT@_W@ATL@@@@@ATL@@I@ Z) referenced in function "protected: int __thiscall CMainFrame::OnCreate(struct tagCREATESTRUCTW *)" (?OnCreate@CMainFrame@@IAEHPAUtagCREATESTRUCTW@@@Z)
The problem appears to happen if you use a VisualStudio 7.1 project as your starting point. We've used XTPro with projects created in VisualStudio 6 with Unicode in the past and they worked OK. Similarly, the demo projects that come with XTPro also appear to compile OK in Unicode.
Any help fixing this would be appreciated as it's stopping the development of a new Unicode program.

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
Andy Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 June 2004 Status: Offline Points: 2	Post Options Post Reply Quote Andy Report Post Thanks(0) Quote Reply Topic: Unicode linker errors Posted: 23 June 2004 at 9:05am
	Hi, I'm getting problems building a very simple project with Unicode support when using XTPro 8.70 and VisualStudio 7.1. The process is easy to repeat: 1. Create a new project in VisualStudio: MFC MDI Application, use all defaults 2. Follow the steps described in the "XTPro Users Guide", "Tutorials - Create an application that has Office style toolbars and menus" This compiles and runs OK. Now: 3. In the project settings, set "Use Unicode Character Set" and define "_UNICODE" in the preprocessor settings. Now compiles with the following errors: MainFrm.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class CXTPToolBar * __thiscall CXTPCommandBars::Add(class ATL::CStringT<wchar_t,class StrTraitMFC_DLL<wchar_t,class ATL::ChTraitsCRT<wchar_t> > >,enum XTPBarPosition,struct CRuntimeClass )" (__imp_?Add@CXTPCommandBars@@QAEPAVCXTPToolBar@@V?$CStringT@ _WV?$StrTraitMFC_DLL@_WV?$ChTraitsCRT@_W@ATL@@@@@ATL@@W4XTPB arPosition@@PAUCRuntimeClass@@@Z) referenced in function "protected: int __thiscall CMainFrame::OnCreate(struct tagCREATESTRUCTW )" (?OnCreate@CMainFrame@@IAEHPAUtagCREATESTRUCTW@@@Z) MainFrm.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: class CXTPMenuBar * __thiscall CXTPCommandBars::SetMenu(class ATL::CStringT<wchar_t,class StrTraitMFC_DLL<wchar_t,class ATL::ChTraitsCRT<wchar_t> > >,unsigned int)" (__imp_?SetMenu@CXTPCommandBars@@QAEPAVCXTPMenuBar@@V?$CStri ngT@_WV?$StrTraitMFC_DLL@_WV?$ChTraitsCRT@_W@ATL@@@@@ATL@@I@ Z) referenced in function "protected: int __thiscall CMainFrame::OnCreate(struct tagCREATESTRUCTW *)" (?OnCreate@CMainFrame@@IAEHPAUtagCREATESTRUCTW@@@Z) The problem appears to happen if you use a VisualStudio 7.1 project as your starting point. We've used XTPro with projects created in VisualStudio 6 with Unicode in the past and they worked OK. Similarly, the demo projects that come with XTPro also appear to compile OK in Unicode. Any help fixing this would be appreciated as it's stopping the development of a new Unicode program.
	-- Andy

Andy Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23 June 2004 Status: Offline Points: 2	Post Options Post Reply Quote Andy Report Post Thanks(0) Quote Reply Posted: 25 June 2004 at 5:35am
	Hi, Just to thank Oleg and Kirk at Codejock for solving this one. The problem was fixed by setting "Treat wchar as Built-In type" to "No" in the "C / C++ > Language" project settings. Many thanks to them for their support :) Best regards,
	-- Andy