有什么方法可以调试从C#DllImport调用的c ++ dll? [英] Is there any way to debug c++ dll called from C# DllImport?

问题描述

我想知道是否有任何方法可以调试在VS 2010中从C#PInvoke调用的c ++ dll.我试图将项目附加到c#应用程序中，但没有用-并没有在断点处停止.

I wonder if there is any way to debug c++ dll called from C# PInvoke in VS 2010. I tried to attach the project into c# application but it didn't work - didn't stop at a break point.

我还尝试在C ++项目中使用OutputDebugString记录任何内容，但没有通过PInvoke调用打印任何内容.尽管存在这些问题，但实际功能运行良好.

I also tried to record anything with OutputDebugString in C++ project but nothing printed with PInvoke call. Despite these issues, the actual function runs well.

任何建议将不胜感激.

推荐答案

两者都需要打开相同的选项:项目">属性">调试"选项卡>选中启用非托管代码调试"选项.

Both require turning on the same option: Project > Properties > Debug tab > tick the "Enable unmanaged code debugging" option.

您现在可以在本机DLL代码中设置一个断点，一旦C#项目加载DLL，它就会从空心变为实心.由于使用了非托管调试引擎，因此OutputDebugString()的输出将进入输出"窗口.

You can now set a breakpoint in the native DLL code, it will turn from hollow to solid as soon as the C# project loads the DLL. And OutputDebugString() output will go to the Output window thanks to the unmanaged debugging engine being used.

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