C++ Loadlibrary() error 3765269347

本文关键字：error 3765269347 Loadlibrary C++ 更新时间：2023-10-16

我得到了这个loadlibrary()错误3765269347困扰我。我正在实现一个c++控制台应用程序，构建为x64，以加载x64本机c++ dll。下面是c++控制台应用程序中加载dll的代码:

  bool InitDll()
{
    HINSTANCE hInst = LoadLibrary(_T("C:\TIS_Nick\Hardware\Devices\ThorDetectorSwitch\TDSTest\TDSTest\Debug\Modules_Native\ThorDetectorSwitch.dll"));
    if( hInst != NULL )
    {
        FreeLibrary( hInst ); 
        return true;
    }
    else
    {
        DWORD err = GetLastError();
        return false;
    }
}

我得到err是3765269347，我认为这意味着c++不能处理这个错误。我确信我加载dll的路径是正确的。

我还使用Monitor Process来跟踪dll和函数被调用的内容。这是我认为相关的信息。

11:08:07.3196483 AM TDSTest.exe 1604    QueryNameInformationFile    C:TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestx64DebugTDSTest.exe   SUCCESS Name: TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestx64DebugTDSTest.exe
11:08:08.5720585 AM TDSTest.exe 1604    CreateFile  C:TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestDebugModules_NativeThorDetectorSwitch.dll SUCCESS Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
11:08:08.5721041 AM TDSTest.exe 1604    QueryBasicInformationFile   C:TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestDebugModules_NativeThorDetectorSwitch.dll SUCCESS CreationTime: 6/11/2013 6:30:08 PM, LastAccessTime: 6/11/2013 6:30:08 PM, LastWriteTime: 6/12/2013 11:00:28 AM, ChangeTime: 6/12/2013 11:05:51 AM, FileAttributes: A
11:08:08.5721293 AM TDSTest.exe 1604    CloseFile   C:TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestDebugModules_NativeThorDetectorSwitch.dll SUCCESS 
11:08:08.5722797 AM TDSTest.exe 1604    CreateFile  C:TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestDebugModules_NativeThorDetectorSwitch.dll SUCCESS Desired Access: Read Data/List Directory, Execute/Traverse, Synchronize, Disposition: Open, Options: Synchronous IO Non-Alert, Non-Directory File, Attributes: n/a, ShareMode: Read, Delete, AllocationSize: n/a, OpenResult: Opened
11:08:08.5723228 AM TDSTest.exe 1604    CreateFileMapping   C:TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestDebugModules_NativeThorDetectorSwitch.dll FILE LOCKED WITH ONLY READERS   SyncType: SyncTypeCreateSection, PageProtection: 
11:08:08.5724896 AM TDSTest.exe 1604    CreateFileMapping   C:TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestDebugModules_NativeThorDetectorSwitch.dll SUCCESS SyncType: SyncTypeOther
11:08:08.5725861 AM TDSTest.exe 1604    Load Image  C:TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestDebugModules_NativeThorDetectorSwitch.dll SUCCESS Image Base: 0x7fef7830000, Image Size: 0x6d000
11:08:08.5726385 AM TDSTest.exe 1604    QueryNameInformationFile    C:TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestDebugModules_NativeThorDetectorSwitch.dll SUCCESS Name: TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestDebugModules_NativeThorDetectorSwitch.dll
11:08:08.5728910 AM TDSTest.exe 1604    CreateFile  C:TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestDebugModules_NativeThorDetectorSwitch.dll SUCCESS Desired Access: Generic Read, Disposition: Open, Options: Synchronous IO Non-Alert, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
11:08:08.5912215 AM TDSTest.exe 1604    CloseFile   C:TIS_NickHardwareDevicesThorDetectorSwitchTDSTestTDSTestDebugModules_NativeThorDetectorSwitch.dll SUCCESS

我很抱歉看起来有点乱，我想在这里发布一张照片，但事实证明我没有足够的声誉来这样做。如有任何建议，欢迎。

我已经追踪到ThorDetectorSwitch.dll中的构造函数，它看起来像这样:

ThorDetectorSwitch::ThorDetectorSwitch() : _mcSwitch(__uuidof(MCLControlClass))
{
    _A  = WstringToBSTR(L"A"); 
    _B  = WstringToBSTR(L"B");
    _C  = WstringToBSTR(L"C");
    _D  = WstringToBSTR(L"D");
    _deviceDetected = FALSE;
}

我在第一个括号处设置了断点，但它永远不会进入函数。相反，它跳转到异常。我想MCLControlClass有问题，还是_mcSwitch ?

我得到err是3765269347

像这样的大错误数值的通用策略是将它们转换为十六进制。3765269347 == 0xE06D7363。这是一个神奇的数字，谷歌也很好。微软程序员使用的一种策略是将异常码的最后3个字节改为ASCII码。6D7363 == "msc"。没有足够的空间添加++:)

诊断是DLL中的DllMain()函数由于未处理的c++异常而死亡。这当然会发生。

调试它的方法是在抛出异常时强制调试器停止，在操作系统加载器捕获它并将其转换为失败代码之前。在Visual Studio中，使用Debug> Exceptions，选中抛出的c++异常复选框。

调试器停止时所看到的内容在很大程度上取决于您是否有一个用于DLL的好的PDB文件以及您是否有源代码。当然，通常需要源代码来修复问题。如果您无法访问这样的东西，那么您确实需要编写该DLL的程序员的帮助。给他发一个小的复制项目，复制崩溃。

这是一个特殊的异常。请读一读MS:解码抛出的c++异常(0xE06D7363)

的参数