如何在.net项目中使用非托管dll？

Question

I'm working on an ASP.NET project which generates screen shots. I want to use gdi32.dll in my project. How can I import it?

Answer 1

你需要使用P / Invoke 。

Answer 2

If the dll is a system dll, you have to add programatically like this:

[DllImport("gdi32.dll", CharSet = CharSet.Ansi, BestFitMapping = true, ThrowOnUnmappableChar = true)]

And make sure that the project ( Solution Platform ) is set to 32 or x86 and not to Any CPU . You can find more about it with a simple Google search . Happy coding

Answer 3

You could use a C++/CLI wrapper, depending on your requirements. It makes certain things easier.