Cannot Call Function From Dll Error 127
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Getprocaddress 127
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Error 127 The Specified Procedure Could Not Be Found
3 I'm having trouble with LoadLibrary() and getting an error that doesn't make sense to me: ::SetLastError(0); m_hDll = ::LoadLibrary(szName); if (m_hDll == NULL) // Failure to load the DLL. { DWORD err = GetLastError(); } The error is 127 ("The specified procedure could not be found.") That doesn't make any sense to me on a call to LoadLibrary(). I haven't called GetProcaddress() yet. The DLL (and the error_proc_not_found application) are both compiled with VS++ 2005 SP1. What could be going wrong? visual-c++ loadlibrary share|improve this question edited Jun 27 '09 at 17:28 asked Jun 27 '09 at 16:52 Adam Tegen 11.5k2292134 Maybe there's no DllMain in the library? Should it fail ::LoadLibrary? –Janusz Lenar Mar 17 '10 at 17:21 If DllMain sets 'last error' as 127 and then returns FALSE, will 'last error' be overwritten by the system before returning from ::LoadLibrary? –Janusz Lenar Mar 17 '10 at 17:25 add a comment| 8 Answers 8 active oldest votes up vote 16 down vote Let's take this step by step: The error message means that the dll was found but a required function is missing. (Jitter is right.) This implies that you have the dll you need, but not the right version. (Davefiddes is right, although the problem can be any dll, not just the Microsoft runtime library. And, at least for major updates, Microsoft gives its runtime libraries different names, so in that case it wouldn't be an issue.) This doesn't make sense, because no function has been requested from the dll being loaded. (Adam is right.) Therefore, the missing function was expected to be f
Page Last Post Printable Version Similar Threads Looking for a good tutorial on DLL imports 2 replies oil imports/exports 1 reply imports/exports 1 reply Platform Tech / Reply to Thread Subscribe DLL imports Post #1 Quote First Post: Aug 2,
Loadlibrary 126
2009 7:52pm Aug 2, 2009 7:52pm FrinkFX | Joined May 2009 | Status: Member |
Loadlibrary Getlasterror 126
251 Posts Im getting the following error when I try to do a DLL import: Inserted Code 2009.08.03 00:47:51 dlltest USDCHF,H1: cannot loadlibrary failed with error 126 cannot find specified module call function 'tibbsNum' from dll 'tibbs.dll' (error 127) I'm using VC++ 6, here's my DLL code: Inserted Code // tibbs.cpp : Defines the entry point for the DLL application. // #include "stdafx.h" #define MT4_EXPFUNC __declspec(dllexport) BOOL http://stackoverflow.com/questions/1053180/loadlibrary-error-code-127 APIENTRY DllMain( HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved ) { return TRUE; } MT4_EXPFUNC double __stdcall tibbsNum(const double x) { return x*2; } (it's just a test function that returns 2X the value passed in) I placed the DLL file in Crogram Files/ MetaTrader - Alpari UK/ experts / libraries I managed to get the MessageBox() function to work by importing user32.dll Post #2 Quote Aug 2, 2009 9:44pm Aug 2, 2009 http://www.forexfactory.com/showthread.php?p=2929874 9:44pm magnumfreak Joined Nov 2007 | Status: Trying manual mode again | 2,209 Posts do you have the "Allow DLL imports" enabled on either the indicator or EA whatever you are trying it with?? SkyNet is self-aware SkyNet_Oanda_Mt4 Return This Month: -4.8% Post #3 Quote Aug 2, 2009 10:44pm Aug 2, 2009 10:44pm wolfe | Joined Nov 2007 | Status: Member | 43 Posts I'm running a 32-bit system with windows XP. I park my dll in the path: C:\WINDOWS\system32 This works great for me. Post #4 Quote Aug 3, 2009 5:10pm Aug 3, 2009 5:10pm FrinkFX | Joined May 2009 | Status: Member | 251 Posts I tried placing it in System32.. no joy Post #5 Quote Edited Aug 4, 2009 1:28am Aug 3, 2009 9:49pm | Edited Aug 4, 2009 1:28am – Added Link wolfe | Joined Nov 2007 | Status: Member | 43 Posts FrinkFX, In your compiled dll solution, do you have a .def file declaring your dll exports? .def file should look something like: PHP Code: LIBRARYYour_dll_Name
A nice tutorial: http://www.mistigrifx.com/book/coding-dll-mt4 Excerpt from link: Error 127: By far the most common error, it is due to the def file. You either do not have a def file, it is
EXPORTStibbsNUM
Help Files Larry Ullman's Book Forums → Single Editions → C++ Programming: Visual QuickStart Guide Javascript Disabled Detected You currently have javascript disabled. Several functions may not work. Please re-enable javascript to http://larryullman.com/forums/index.php?/topic/3499-calling-a-dll/ access full functionality. Calling A Dll Started by Necuima , Nov 21 2014 3:30 AM dll Please log in to reply 18 replies to this topic #1 Necuima Necuima Advanced Member Members 230 posts LocationSunshine Coast, Queensland, Australia Posted 21 November 2014 - 3:30 AM Hi,Can someone please help me with this code which just calls a DLL.The code works perfectly in the Dev-C++ IDE but gives me error 127 an error indicating that the LoadLibrary/GetProcessAddress fails when I try to execute it in the MS Visual C++ (2008 express) IDE. // A simple program that uses LoadLibrary and // GetProcAddress to access the printString function from HelloWorld_CPP.dll. // It also calls the function in the DLL passing a string to it. #include