장치 추가 제거 통지(device change notify method)

deviceiocontrol disk용량 확인

http://msdn.microsoft.com/en-us/library/windows/desktop/aa363147(v=vs.85).aspx

Registering for Device Notification

http://msdn.microsoft.com/en-us/library/windows/desktop/aa363432(v=vs.85).aspx

Detecting Media Insertion or Removal

http://msdn.microsoft.com/en-us/library/windows/desktop/aa363215(v=vs.85).aspx

Processing a Request to Remove a Device

http://msdn.microsoft.com/en-us/library/windows/desktop/aa363427(v=vs.85).aspx