//sys	GetVolumePathNamesForVolumeName(volumeName *uint16, volumePathNames *uint16, bufferLength uint32, returnLength *uint32) (err error) = GetVolumePathNamesForVolumeNameW
//sys	QueryDosDevice(deviceName *uint16, targetPath *uint16, max uint32) (n uint32, err error) [failretval==0] = QueryDosDeviceW
//sys	SetVolumeLabel(rootPathName *uint16, volumeName *uint16) (err error) = SetVolumeLabelW

	r1, _, e1 := syscall.Syscall(procPurgeComm.Addr(), 2, uintptr(handle), uintptr(dwFlags), 0)
	if r1 == 0 {
		err = errnoErr(e1)
	}
	return
}

func QueryDosDevice(deviceName *uint16, targetPath *uint16, max uint32) (n uint32, err error) {
	r0, _, e1 := syscall.Syscall(procQueryDosDeviceW.Addr(), 3, uintptr(unsafe.Pointer(deviceName)), uintptr(unsafe.Pointer(targetPath)), uintptr(max))