■ 멀티미디어 타이머를 사용하는 방법을 보여준다.
▶ MultimediaTimerDelegate.cs
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namespace TestProject { /// <summary> /// 멀티미디어 타이머 대리자 /// </summary> /// <param name="id">ID</param> /// <param name="message">메시지</param> /// <param name="userContext">사용자 컨텍스트</param> /// <param name="reserved1">예약 1</param> /// <param name="reserved2">예약 2</param> public delegate void MultimediaTimerDelegate(uint id, uint message, ref uint userContext, uint reserved1, uint reserved2); } |
▶ MultimediaTimer.cs
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using System; using System.ComponentModel; using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// 멀티미디어 타이머 /// </summary> public class MultimediaTimer : IDisposable { //////////////////////////////////////////////////////////////////////////////////////////////////// Event ////////////////////////////////////////////////////////////////////////////////////////// Public #region 틱 이벤트 - Tick /// <summary> /// 틱 이벤트 /// </summary> public event EventHandler Tick; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 타이머 이벤트 설정하기 - TimeSetEvent(delay, resolution, callback, userContext, eventType) /// <summary> /// 타이머 이벤트 설정하기 /// </summary> /// <param name="delay">지연 시간 (단위 : ms)</param> /// <param name="resolution">해상도 (단위 : ms)</param> /// <param name="callback">콜백 함수</param> /// <param name="userContext">사용자 컨텍스트</param> /// <param name="eventType">이벤트 타입</param> /// <returns>타이머 ID</returns> /// <remarks> /// eventType : 0(1회성 이벤트), 1(정기 이벤트) /// </remarks> [DllImport("winmm", SetLastError = true, EntryPoint = "timeSetEvent")] private static extern uint TimeSetEvent(uint delay, uint resolution, MultimediaTimerDelegate callback, ref uint userContext, uint eventType); #endregion #region 타이머 이벤트 제거하기 - TimeKillEvent(timerID) /// <summary> /// 타이머 이벤트 제거하기 /// </summary> /// <param name="timerID">타이머 ID</param> [DllImport("winmm", SetLastError = true, EntryPoint = "timeKillEvent")] private static extern void TimeKillEvent(uint timerID); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 리소스 해제 여부 /// </summary> private bool disposed = false; /// <summary> /// 주기 /// </summary> private int interval; /// <summary> /// 해상도 (단위 : ms) /// </summary> private int resolution; /// <summary> /// 타이머 ID /// </summary> private uint timerID; /// <summary> /// 멀티미디어 타이머 대리자 /// </summary> private readonly MultimediaTimerDelegate multimediaTimerDelegate; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 주기 - Interval /// <summary> /// 주기 /// </summary> public int Interval { get { return this.interval; } set { if(this.disposed) { throw new ObjectDisposedException("MultimediaTimer"); } if(value < 0) { throw new ArgumentOutOfRangeException("Interval"); } this.interval = value; if(Resolution > Interval) { Resolution = value; } } } #endregion #region 해상도 - Resolution /// <summary> /// 해상도 /// </summary> public int Resolution { get { return this.resolution; } set { if(this.disposed) { throw new ObjectDisposedException("MultimediaTimer"); } if(value < 0) { throw new ArgumentOutOfRangeException("Resolution"); } this.resolution = value; } } #endregion #region 실행 여부 - IsRunning /// <summary> /// 실행 여부 /// </summary> public bool IsRunning { get { return this.timerID != 0; } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MultimediaTimer() /// <summary> /// 생성자 /// </summary> public MultimediaTimer() { this.multimediaTimerDelegate = new MultimediaTimerDelegate(ProcessMultimediaTimer); Resolution = 5; Interval = 10; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Destructor #region 소멸자 - ~MultimediaTimer() /// <summary> /// 소멸자 /// </summary> ~MultimediaTimer() { Dispose(false); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 시작하기 - Start() /// <summary> /// 시작하기 /// </summary> public void Start() { if(this.disposed) { throw new ObjectDisposedException("MultimediaTimer"); } if(IsRunning) { return; } uint userContext = 0; this.timerID = TimeSetEvent((uint)Interval, (uint)Resolution, multimediaTimerDelegate, ref userContext, 1); if(this.timerID == 0) { int error = Marshal.GetLastWin32Error(); throw new Win32Exception(error); } } #endregion #region 중단하기 - Stop() /// <summary> /// 중단하기 /// </summary> public void Stop() { if(this.disposed) { throw new ObjectDisposedException("MultimediaTimer"); } if(!IsRunning) { return; } StopInternal(); } #endregion #region 리소스 해제하기 - Dispose() /// <summary> /// 리소스 해제하기 /// </summary> public void Dispose() { Dispose(true); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 멀티미디어 타이머 처리하기 - ProcessMultimediaTimer(id, message, userContext, reserved1, reserved2) /// <summary> /// 멀티미디어 타이머 처리하기 /// </summary> /// <param name="id">ID</param> /// <param name="message">메시지</param> /// <param name="userContext">사용자 컨텍스트</param> /// <param name="reserved1">예약 1</param> /// <param name="reserved2">예약 2</param> private void ProcessMultimediaTimer(uint id, uint message, ref uint userContext, uint reserved1, uint reserved2) { Tick?.Invoke(this, EventArgs.Empty); } #endregion #region 중단하기 (내부용) - StopInternal() /// <summary> /// 중단하기 (내부용) /// </summary> private void StopInternal() { TimeKillEvent(this.timerID); this.timerID = 0; } #endregion #region 리소스 해제하기 - Dispose(disposing) /// <summary> /// 리소스 해제하기 /// </summary> /// <param name="disposing">리소스 해제 여부</param> private void Dispose(bool disposing) { if(this.disposed) { return; } this.disposed = true; if(IsRunning) { StopInternal(); } if(disposing) { Tick = null; GC.SuppressFinalize(this); } } #endregion } } |
▶ MainForm.cs
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using System; using System.Diagnostics; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 스톱워치 /// </summary> private Stopwatch stopwatch = new Stopwatch(); /// <summary> /// 멀티미디어 타이머 /// </summary> private MultimediaTimer multimediaTimer; /// <summary> /// 표시 타이머 /// </summary> private Timer displayTimer; /// <summary> /// 현재 경과 시간 (단위 : 밀리초) /// </summary> private double currentElapsedTime; /// <summary> /// 이전 시간 (단위 : 밀리초) /// </summary> private double previousTime; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.multimediaTimer = new MultimediaTimer(); this.multimediaTimer.Interval = 1; this.multimediaTimer.Resolution = 0; this.displayTimer = new Timer(); this.displayTimer.Interval = 30; FormClosing += Form_FormClosing; this.multimediaTimer.Tick += multimediaTimer_Tick; this.displayTimer.Tick += displayTimer_Tick; this.multimediaTimer.Start(); this.displayTimer.Start(); this.stopwatch.Start(); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 폼을 닫을 경우 처리하기 - Form_FormClosing(sender, e) /// <summary> /// 폼을 닫을 경우 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_FormClosing(object sender, FormClosingEventArgs e) { this.displayTimer.Stop(); this.multimediaTimer.Stop(); } #endregion #region 멀티미디어 타이머 틱 처리하기 - multimediaTimer_Tick(sender, e) /// <summary> /// 멀티미디어 타이머 틱 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void multimediaTimer_Tick(object sender, EventArgs e) { this.currentElapsedTime = this.stopwatch.ElapsedMilliseconds - this.previousTime; Console.WriteLine($"멀티미디어 타이머 : [{DateTime.UtcNow:o}] {currentElapsedTime}"); this.previousTime = this.stopwatch.ElapsedMilliseconds ; } #endregion #region 표시 타이머 틱 처리하기 - displayTimer_Tick(sender, e) /// <summary> /// 표시 타이머 틱 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void displayTimer_Tick(object sender, EventArgs e) { this.currentElaspesTimeValueLabel.Text = this.currentElapsedTime.ToString(); } #endregion } } |
