从纯C程序调用DLL函数（在C#.NET中）会导致错误

我有一个C程序，它需要一些用C#NET编写的库的功能。在我用谷歌搜索出一种方法之后，没过多久我就遇到了另一个问题

从该库调用方法/函数似乎不是问题，只要函数没有返回复杂类型（注意：现在这只是我的猜测，但这是我迄今为止观察到的行为）

我想向您展示代码的样子（注意：这不是实际的代码，但它包含一些可能很有趣的部分）：

如果我调用一个更简单的函数，例如，一个本身没有调用返回复杂对象（如

IComplexObject

的函数），则一切正常。一旦出现内部调用，如

（IComplexObject）SingletonObject.getComplexObject（）就位程序无法正常工作。引发异常，说明“未找到请求的类型”

如果你需要任何进一步的信息，让我知道，我会尽量给你

最后，我将向您展示我收到的控制台输出，以防有人使用这些信息：

First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: EEFileLoadException at memory location 0x0012d140..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: EEFileLoadException at memory location 0x0012d140..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: 0xE0434F4D: 0xe0434f4d.
First-chance exception at 0x758f812f in agentsib.exe: 0xE0434F4D: 0xe0434f4d.
'agentsib.exe': Loaded 'C:\Windows\System32\sspicli.dll', Cannot find or open the PDB file
'agentsib.exe': Loaded 'C:\Windows\System32\dhcpcsvc.dll', Cannot find or open the PDB file
'agentsib.exe': Loaded 'C:\Windows\System32\dhcpcsvc6.dll', Cannot find or open the PDB file
The thread 'Win32 Thread' (0x550) has exited with code 2 (0x2).
The thread 'Win32 Thread' (0xf30) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0x910) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0x1dd8) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0x1b64) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0x1dfc) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0x128c) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0xa0c) has exited with code -1073741510 (0xc000013a).
The program '[5068] agentsib.exe: Native' has exited with code -1073741510 (0xc000013a).

谢谢你的帮助
 我的建议：你可以：

编写一个混合C++/CLI DLL，它调用C#代码，并将功能导出为DLL导出函数

C程序调用混合DLL中的导出函数

至于如何做到这一点，请检查

尝试将CLR托管在C程序中，这是可能的，但复杂且难以调试。此外，您还需要处理从本机到托管世界的数据转换，反之亦然

另一种方法是：将C#DLL包装为COM，然后C DLL将通过COM使用C#DLL。您不需要创建额外的DLL，但还有其他缺点：每个导出的C#type都必须有一个GUID；数据转换通过COM类型进行，对于普通类型，它们是可以的；对于阵列，您需要使用SAFEARRY。有关详细信息：请检查
我们无法看到
ICLRRuntimeHost\u ExecuteInDefaultAppDomain
。为什么不使用非托管索引端口或混合模式C++/CLI DLL？看起来您需要将内部运行时指向
IComplexObject
所需的程序集。此外，堆栈跟踪的完全异常也会有所帮助。（程序调试输出不太有用）@DavidHeffernan
ICLRRuntimeHost\u ExecuteInDefaultAppDomain
是调用DLL函数的C函数。非托管DexPorts能否解决此问题？其中一个程序是用纯C编写的，我所说的库是用C#混合模式C++/CLI如何帮助我@我将在大约一小时内添加完整的堆栈跟踪。需要在另一台计算机上才能获取。C++/CLI可以使用C#程序集。这是官方支持的完成非托管Dexports功能的方法。不受管理的运动会让你的生活变得非常轻松。您不必在加载和初始化.net库时乱来。这一切都会神奇地发生。@StefanFalk我认为DavidHeffernan是在暗示你编写了ICLRRuntimeHost_ExecuteInDefaultAppDomain，因为它不是标准API的一部分。（我看到C++函数非常相似，但不是你提到的）这就是David Heffernan建议的，对吧？这意味着混合使用C++/CLI包装DLL。我想知道是否没有其他方法可以解决这个问题，因为我们在这里讨论的库非常大，而且包装器可能会添加大量需要进行的维护。不确定在不进行非托管数据端口的额外工作（需要额外的编译步骤）的情况下，使用#2（即使DLL是C++/CLI）能走多远因此，C++/CLI这件事并不是让我高兴的吗？@ebyrob我认为C++CLI不需要非托管数据端口。它只是使用dllexport导出函数或类。@Matt I stand corrected在给出调试警告的情况下，看起来IJW会这样做。（尽管跟踪和控制台仍然可以正常工作）COM似乎永远都不是一个好主意，除非你出于某种原因不得不拥有它。我认为在.NET2.0和.NET4.0之间的某个地方，“额外的编译步骤”一定是自动完成的。
/// C#

/// @param parameter is ignored
public static int myfunction(string strParam)
{
    try {

        IComplexObject co = (IComplexObject)SingletonObject.getComplexObject();

    } catch(Exception ex) { 
        Console.WriteLine(ex.Message); 
        return ERR_EXCEPTION; 
    }

    if (co.IsConfigured == false) 
        co.Configure();

    if (co.IsConfigured == false) 
        return ERR_COULD_NOT_CONFIG;

    return OK;
}

First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: EEFileLoadException at memory location 0x0012d140..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: EEFileLoadException at memory location 0x0012d140..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000..
First-chance exception at 0x758f812f in agentsib.exe: 0xE0434F4D: 0xe0434f4d.
First-chance exception at 0x758f812f in agentsib.exe: 0xE0434F4D: 0xe0434f4d.
'agentsib.exe': Loaded 'C:\Windows\System32\sspicli.dll', Cannot find or open the PDB file
'agentsib.exe': Loaded 'C:\Windows\System32\dhcpcsvc.dll', Cannot find or open the PDB file
'agentsib.exe': Loaded 'C:\Windows\System32\dhcpcsvc6.dll', Cannot find or open the PDB file
The thread 'Win32 Thread' (0x550) has exited with code 2 (0x2).
The thread 'Win32 Thread' (0xf30) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0x910) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0x1dd8) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0x1b64) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0x1dfc) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0x128c) has exited with code -1073741510 (0xc000013a).
The thread 'Win32 Thread' (0xa0c) has exited with code -1073741510 (0xc000013a).
The program '[5068] agentsib.exe: Native' has exited with code -1073741510 (0xc000013a).