How can I add a C++ DLL file in my .NET application?

Question

如何在.NET应用程序中添加C ++ DLL文件？

Answer 1

You would use an "extern" function, marked with the DllImport attribute.

[DllImport(@“C:\mylib.dll”)]
public static extern int myFunc(int param);

Answer 2

Depending on the nature of the DLL, you can

1. Add a reference to a registered COM DLL ,

2. Call Win32 DLLs with P/Invoke , or

3. Write a wrapper in C++/CLI .

Answer 3

如果它在COM中注册，您只需在Visual Studio中添加COM引用，Visual Studio将为您创建所有Interop 。

Answer 4

Assuming you use Visual Studio, in your Solution right click "references" and choose "Add Reference". Select your dll file.

In the classes that will use the dll, add : using MyLibrarysName;

then you can call the functions in that DLL using Mylibraryname.myfunction