Msdn Loadlibrary Error 126
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Edge Windows Holographic Downloads Samples Support Dashboard Explore Why Windows What’s new for Windows 10 Intro to Universal Windows Platform Dev Center Benefits Develop for accessibility Build for enterprise Docs Windows apps Get started Design and UI Develop API reference Publish Monetize Promote Games Get started UI design Develop Publish Desktop Get started Design Develop API reference Test and deploy Compatibility Windows IoT Microsoft Edge Windows Holographic Downloads Samples Support Dashboard Dynamic-Link Libraries Dynamic-Link Library Reference Dynamic-Link Library Functions Dynamic-Link Library Functions LoadLibrary LoadLibrary LoadLibrary AddDllDirectory DisableThreadLibraryCalls DllMain FreeLibrary FreeLibraryAndExitThread GetDllDirectory GetModuleFileName GetModuleHandle GetModuleHandleEx GetProcAddress LoadLibrary LoadLibraryEx LoadModule LoadPackagedLibrary QueryOptionalDelayLoadedAPI RemoveDllDirectory SetDefaultDllDirectories SetDllDirectory TOC Collapse the table of content Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. LoadLibrary function Loads the specified module into the address space of the calling process. The specified module may cause other modules to be loaded. For addi
ZhangNovember 20, 20061 Share 0 0 LoadLibrary is one of the mostly used yet unbelieveably complex APIs in Windows, if not the one. Russ Osterlundhas a full getlasterror 126 MSDN article discussing LoadLibrary, yet he only touches the surface of
Loadlibrary Error 193
the problem (how it works under normal condition.) Mike Grier is one of the most talented loadlibrary getprocaddress developers I have worked with in Microsoft. He devoted a full series on the intricacyof LoadLibrary. Yet he has to put it to a halt due to the https://msdn.microsoft.com/en-us/library/windows/desktop/ms684175(v=vs.85).aspx complexity of the problem. For developers that outside of the loader team, they don't have to understand all the intricacy of LoadLibrary (though they do need to understand how it works, the dos and don'ts of LoadLibrary, etc.). But then LoadLibrary fails, they do need to figure out why it fails. There are times that https://blogs.msdn.microsoft.com/junfeng/2006/11/20/debugging-loadlibrary-failures/ this is just hard to figure out why, especially when the binary depends on other dlls that they don't have source code available. Fortunately, the loader team recognized the problem, and provided a built-in trace log to debug obsure LoadLibrary failures. The trace log is called "loader snaps" internally. You can turn on loader snaps using gflags.exe. gflags.exe is part of Debugging Tools for Windows. You can download it from http://www.microsoft.com/whdc/devtools/debugging/default.mspx. To enable loader snaps, run "gflags.exe -i your-app-without-path.exe +sls" You have to run your application under debugger to see the loader snaps. You can use debuggers in the Debugging Tools for Windows package. An example is shown at the bottom of this article. If there is any failures, you will see "failed" in loader snaps. Be warned that loader snaps may have enormous output. You may want to isolate the problem before turning on loader snaps. gflags.exe can also turn on all kinds of debugging capabilities, please refer to MSDN http://technet2.microsoft.com/WindowsServer/en/library/00d4872f-eeb3-4a6e-910a-299ad55aed631033.mspx?mfr=truefor mor
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About http://stackoverflow.com/questions/842111/what-might-prevent-a-dll-from-loading-with-loadlibrary Us Learn more about Stack Overflow the company Business Learn more about hiring http://www.cplusplus.com/forum/windows/78055/ developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up What might prevent a DLL loadlibrary error from loading with LoadLibrary? up vote 5 down vote favorite 1 I have a JD Edwards business function, which is written in Microsoft Visual C++ as a C module. I'm using LoadLibrary to access a third party DLL. In a standalone test program, the code runs just fine. When I run it from within JDE, LoadLibrary returns NULL and GetLastError returns 126, which means The specified msdn loadlibrary error module could not be found according to MSDN. I've tried putting in the full path to the DLL, and yes I've remembered to double up the \ characters in the path. No difference. I've checked to make sure there are no dependencies that would keep the DLL from loading; DUMPBIN /DEPENDENTS returns the following: WSOCK32.dll USER32.dll GDI32.dll WINSPOOL.DRV ADVAPI32.dll KERNEL32.dll These look like standard Windows DLLs, so I'm at a loss. visual-c++ dll loadlibrary jdedwards share|improve this question asked May 8 '09 at 22:37 Mark Ransom 181k22194401 add a comment| 6 Answers 6 active oldest votes up vote 5 down vote A missing dependency? Have you checked with Dependency Walker that all referenced libraries are found? share|improve this answer answered May 8 '09 at 22:51 Dirk Vollmar 106k35181252 It's been a very long time since I needed it, I completely forgot about Dependency Walker. It says I'm missing a delay loaded DLL dwmapi.dll, which I understand is Vista only. I don't think that's the problem, but thanks for the pointer. –Mark Ransom May 8 '09 at 23:06 How about moving the dll to a folder which is on your path like
Ive come up with thiss error (through getLastError() func). The code which creates the dll is almost the same as the IDE generated, I just changed the function name and what the function does, this is the code: header file 1
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#ifndef __MAIN_H__ #define __MAIN_H__ #include
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#include "main.h" // a sample exported function int DLL_EXPORT getDungeonsNumber() { return 5; } BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) { switch (fdwReason) { case DLL_PROCESS_ATTACH: // attach to process // return FALSE to fail DLL load break; case DLL_PROCESS_DETACH: // detach from process break; case DLL_THREAD_ATTACH: // attach to thread break; case DLL_THREAD_DETACH: // detach from thread break; } return TRUE; // succesful } this makes the MW.dll file (CodeBlocks IDE used here). Then the main program code is made in Qt IDE: 1
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int main(int argc, char *argv[]) { QApplication a(argc, argv); MainWindow w; //creates the main window of the app w.show(); return a.exec(); } //heres the c´tor of the main window where Im trying to loa