[Two projects use one file on visual studio 2008] [C++]
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Hi all . step 1: create new project on visual studio (project1.exe) step 2: create WinUtils.h and WinUtils.cpp on project1.exe and main1.cpp step 3 : add new project (project2.exe) and create main2.cpp Now I want to use WinUtils.h and WinUtils.cpp on project2.exe example //-----------------main2.cpp-------------------- #include "../utils/WinUtils.h" int main() { bool value = WinUtils::isWin64bit();/ function static return 0 ; } //-------------------------------------------- when i build code ,I saw error: + error LNK2001: unresolved external symbol "public: static int __cdecl WinUtils::Is64BitOS(void)" (?Is64BitOS@WinUtils@@SAHXZ) + fatal error LNK1120: 1 unresolved externals I make sure that isWin64bit() function is "public static" Please help me this problem .because my code has very much h and cpp files. Thanks Thong LT
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Hi all . step 1: create new project on visual studio (project1.exe) step 2: create WinUtils.h and WinUtils.cpp on project1.exe and main1.cpp step 3 : add new project (project2.exe) and create main2.cpp Now I want to use WinUtils.h and WinUtils.cpp on project2.exe example //-----------------main2.cpp-------------------- #include "../utils/WinUtils.h" int main() { bool value = WinUtils::isWin64bit();/ function static return 0 ; } //-------------------------------------------- when i build code ,I saw error: + error LNK2001: unresolved external symbol "public: static int __cdecl WinUtils::Is64BitOS(void)" (?Is64BitOS@WinUtils@@SAHXZ) + fatal error LNK1120: 1 unresolved externals I make sure that isWin64bit() function is "public static" Please help me this problem .because my code has very much h and cpp files. Thanks Thong LT
Did you add the file "WinUtils.cpp" (and optionally WinUtils.h) to the new projects? Including the header file will make your project
compile, but whenlinkingwill fail if the code is not there.I'd rather be phishing!
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Did you add the file "WinUtils.cpp" (and optionally WinUtils.h) to the new projects? Including the header file will make your project
compile, but whenlinkingwill fail if the code is not there.I'd rather be phishing!
Thank Maximilien, I didn't add this file . I will add this file. How to have any ways ? . if we don't add WinUtils.cpp and WinUtils.h inside new project. I know will dll , lib files we only use configure but we don't need add h and cpp file inside new project. Thanks Thong LT
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Thank Maximilien, I didn't add this file . I will add this file. How to have any ways ? . if we don't add WinUtils.cpp and WinUtils.h inside new project. I know will dll , lib files we only use configure but we don't need add h and cpp file inside new project. Thanks Thong LT
If the code WinUtils.cpp will be used as a library, then it would be a good thing to either build them as a DLL or a static library (.lib). After that, you will only need to have the header file (WinUtils.h) and you will link with the library.
I'd rather be phishing!
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Thank Maximilien, I didn't add this file . I will add this file. How to have any ways ? . if we don't add WinUtils.cpp and WinUtils.h inside new project. I know will dll , lib files we only use configure but we don't need add h and cpp file inside new project. Thanks Thong LT
If you don't put the cpp file, it won't get compiled, therefore the object doesn't exist. Header file is simply a reference, it doesn't produce an object.
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If you don't put the cpp file, it won't get compiled, therefore the object doesn't exist. Header file is simply a reference, it doesn't produce an object.
Thanks all friends . My code now run well . I have some error and how to fix . + fatal error C1189: #error : Building MFC application with /MD[d] (CRT dll version) requires MFC shared dll version. Please #define _AFXDLL or do not use /MD[d] Configuration Properties\Gerenal\Use of MFC and select "Use MFC in a Shared DLL" + error LNK2001: unresolved external Configuration Properties\Linker\input\Additional dependencies\ Then go to the end and type ";ws2_32.lib". or use code: #include #pragma comment(lib,"shlwapi.lib") #include // Link with Iphlpapi.lib #pragma comment(lib, "IPHLPAPI.lib") Thong LT
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Thanks all friends . My code now run well . I have some error and how to fix . + fatal error C1189: #error : Building MFC application with /MD[d] (CRT dll version) requires MFC shared dll version. Please #define _AFXDLL or do not use /MD[d] Configuration Properties\Gerenal\Use of MFC and select "Use MFC in a Shared DLL" + error LNK2001: unresolved external Configuration Properties\Linker\input\Additional dependencies\ Then go to the end and type ";ws2_32.lib". or use code: #include #pragma comment(lib,"shlwapi.lib") #include // Link with Iphlpapi.lib #pragma comment(lib, "IPHLPAPI.lib") Thong LT
Are you asking a question? ...I'm not sure what you're saying.