How do I use unqualified names?

[Gavin-Williams]

I want to use the CreateWaitableTimer function, but I'm getting a warning that the method name is ambiguous, and I should use the fully qualified name. But I just want to use the function as documented here Using Waitable Timer Objects.

[AArnott]

I don't know why CsWin32 is emitting that error, since it's supposed to default to the W suffixed variants. I'll look into it.
In the meantime though, at least in my testing it seems you only have to add the W suffix in NativeMethods.txt. In your .cs files, the suffix can be omitted.

[AArnott]

Ah, the reason is because the CreateWaitableTimer variants and related functions are in distinct namespaces:

I filed a bug against the win32metadata repo to fix this.