GetIconInfo requires either pointers or declaring a new SafeHandle class to wrap a HICON you don't own

I'm currently defining my own UnownedHandle type to work around this, but I'd really like to delete it.

ICONINFO M(HICON iconHandle)
{
    if (!PInvoke.GetIconInfo(new UnownedHandle(iconHandle), out var iconInfo)) throw new Win32Exception();
    return iconInfo;
}

I obtained the HICON from a struct field from an API that only returns handles that I don't own.

Referencing only CsWin32 0.1.445-beta

The issue names no files or tests; start at the generated PInvoke.GetIconInfo declaration and the UnownedHandle workaround. Done means allowing a borrowed HICON from a struct field to be passed without declaring a custom SafeHandle, while preserving its non-ownership; inspect existing handle parameter conventions before deciding the API shape.