Go を使用して Windows コンソールで UTF-8 文字列を正しく印刷するにはどうすればよいですか?

<code class="go">// Alert: This method utilizes undocumented methods and does not handle stdout redirection or error checking.
// Use with caution.

package main

import (
    "syscall"
    "unicode/utf16"
    "unsafe"
)

var modkernel32 = syscall.NewLazyDLL("kernel32.dll")
var procWriteConsoleW = modkernel32.NewProc("WriteConsoleW")

func consolePrintString(strUtf8 string) {
    strUtf16 := utf16.Encode([]rune(strUtf8))
    if len(strUtf16) == 0 {
        return
    }

    var charsWritten *uint32
    syscall.Syscall6(procWriteConsoleW.Addr(), 5,
        uintptr(syscall.Stdout),
        uintptr(unsafe.Pointer(&strUtf16[0])),
        uintptr(len(strUtf16)),
        uintptr(unsafe.Pointer(charsWritten)),
        uintptr(0),
        0)
}

func main() {
    consolePrintString("Hello ☺\n")
    consolePrintString("éèïöîôùòèìë\n")
}</code>