[go-nuts] windows syscall (*LazyProc).Call Why the returned error is always non-nil?

[bronze man]

In the file /usr/local/go/src/syscall/dll_windows.go:300

Is there any use case to use the always non-nil error obj?

That is a strange design.I think I need to write my version of LazyProc.

I can write something like following to work around this:

func IsSyscallErrorHappen(err error) bool{
   if err==nil{
      return false
   }
   errNo,ok:=err.(syscall.Errno)
   if ok && errNo==0{
      return false
   }
   return true
}

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