Why does DllImport require an Identifier?

Question

I'm a little confused.

In the code:

[DllImport("library.dll")]
public static extern void function(int x);

why is the x required? Shouldn't the int be enough as this is just a definition and not a declaration?

Answer 1

Its the C# Syntax, the same goes for methods in interface.

Probably the biggest reason is, that it adds clarity to the code. Parameter name may tells about the expected value in method