Getprocaddress 127 Error
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Loadlibrary Failed With Error 127
Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just error_proc_not_found like you, helping each other. Join them; it only takes a minute: Sign up GetProcAddress, Error 127 (ERROR_PROC_NOT_FOUND) up vote 0 down vote favorite I am trying to call a function defined in a DLL, documented here: http://xiph.org/vorbis/doc/vorbisfile/ov_fopen.html
Get Last Error 127
LoadLibraryA is successful and GetProcAddress seems to return a valid address for every other function I've tried it with. Here it returns NULL here and GetLastError() returns 127 (ERROR_PROC_NOT_FOUND). const char* dllName = "libvorbisfile.dll"; mhDll = LoadLibraryA(dllName); typedef int (__cdecl *OV_FOPEN)(char*, OggVorbis_File*); OV_FOPEN ProcFOpen = (OV_FOPEN) GetProcAddress(mhDll, "ov_fopen"); What can I do? c++ dll ogg share|improve this question asked Oct 7 '11 at 3:22 user974967 92842028 1 Did you build that libvorbisfile.dll yourself or getlasterror 127 did you get it from somewhere else? In any case, depends.exe can tell you if the DLL really exports that function. –Baffe Boyois Oct 7 '11 at 3:33 add a comment| 2 Answers 2 active oldest votes up vote 4 down vote accepted According to this discussion thread, some versions of libvorbisfile.dll are missing ov_fopen. share|improve this answer answered Oct 7 '11 at 3:39 Raymond Chen 35k65789 I don't know where you found that thread but that seems to be the case here. I opened the dll in depends and the function is missing! :( –user974967 Oct 7 '11 at 3:48 6 All I did was a web search for 'ov_fopen libvorbisfile' and boom there it was on the first page of results. –Raymond Chen Oct 7 '11 at 4:23 add a comment| up vote 3 down vote Examine the DLL with Depends and find out why you can't find the function. It's probably either just the name is wrong in the documentation or there's a name mangling issue. share|improve this answer answered Oct 7 '11 at 3:32 Carey Gregory 5,78121737 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest
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Forum Visual C++ & C++ Programming Visual C++ Programming Error 127 on a getProcAddress call If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to http://forums.codeguru.com/showthread.php?478450-Error-127-on-a-getProcAddress-call register or Login before you can post: click the register link above to proceed. To http://twigstechtips.blogspot.com/2010/02/c-getprocaddress-fails-with-local-dll.html start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 5 of 5 Thread: Error 127 on a getProcAddress call Tweet Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode June 5th, 2009,05:27 AM #1 Unull View Profile View error 127 Forum Posts Junior Member Join Date Jun 2009 Posts 6 Error 127 on a getProcAddress call Hello, I´m developing an application to hook mouse click using Visual Studio 2005. I´ve created a DLL called bloq_mouse.dll. To create this DLL I wrote an bloq_mouse.h defining the functions to be exportable: #define DLLEXPORT __declspec(dllexport) std::vector< std:air< POINT , POINT > > coords; DLLEXPORT int loadBloqCoords(const char config[_MAX_PATH]); DLLEXPORT LRESULT CALLBACK mouseHookProc(int nCode, WPARAM wParam, LPARAM lParam); I also created getprocaddress 127 error an .def file : LIBRARY bloq_mouse EXPORTS loadBloqCoords mouseHookProc And then, in a separate project, I´ve created an executable with this code: hinstDLL = LoadLibraryA("bloq_mouse.dll"); if( hinstDLL == NULL ) { //send error message } FARPROC lpfnGetProcess = GetProcAddress(hinstDLL, "loadBloqCoords"); if(lpfnGetProcess == NULL ) { //send error message } The DLL seems to load succesfully (I copied it in the executable´s project dir) but when I try to access loadBloqCoords function I get an 127 error (cannot find the proccess). I´m new with DLL making and accessing, Can Anyone Help Me? Thanks. Reply With Quote June 5th, 2009,08:28 AM #2 Paul McKenzie View Profile View Forum Posts Elite Member Power Poster Join Date Apr 1999 Posts 27,449 Re: Error 127 on a getProcAddress call Originally Posted by Unull The DLL seems to load succesfully (I copied it in the executable´s project dir) but when I try to access loadBloqCoords function I get an 127 error (cannot find the proccess). Always check using a utility such as Dependency Walker (depends.exe) or dumpbin to ensure that the actual function name you're trying to get the address of is actually exported using that very same name. More than likely, the function wasn't exported, or it was exported with a decorated name (not the name you're calling GetProcAddress() with). Regards, Paul McKenzie Reply With Quote June 5th, 2009,08:41 AM #3 hoxsiew View Pro
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