■ FlashWindowEx API 함수를 사용해 비활성화시 작업 표시줄을 깜박이는 방법을 보여준다.
▶ TaskbarHelper.cs
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using System; using System.Runtime.InteropServices; namespace TestProject { public static class TaskbarHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Structure ////////////////////////////////////////////////////////////////////////////////////////// Public #region 윈도우 깜박이기 정보 - FLASHWINFO /// <summary> /// 윈도우 깜박이기 정보 /// </summary> [StructLayout(LayoutKind.Sequential)] public struct FLASHWINFO { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 크기 /// </summary> public uint Size; /// <summary> /// 윈도우 핸들 /// </summary> public IntPtr WindowHandle; /// <summary> /// 플래그 /// </summary> public uint Flag; /// <summary> /// 카운트 /// </summary> public uint Count; /// <summary> /// 타임아웃 /// </summary> public uint Timeout; #endregion } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 윈도우 작업 표시줄 깜박이기 - FlashWindowEx(info); /// <summary> /// 윈도우 작업 표시줄 깜박이기 /// </summary> /// <param name="info">윈도우 작업 표시줄 깜박이기 정보</param> /// <returns>처리 결과</returns> [DllImport("user32")] private static extern int FlashWindowEx(ref FLASHWINFO info); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// FLASHW_STOP /// </summary> private const uint FLASHW_STOP = 0; /// <summary> /// FLASHW_CAPTION /// </summary> private const uint FLASHW_CAPTION = 1; /// <summary> /// FLASHW_TRAY /// </summary> private const uint FLASHW_TRAY = 2; /// <summary> /// FLASHW_ALL /// </summary> private const uint FLASHW_ALL = 3; /// <summary> /// FLASHW_TIMER /// </summary> private const uint FLASHW_TIMER = 4; /// <summary> /// FLASHW_TIMERNOFG /// </summary> private const uint FLASHW_TIMERNOFG = 12; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 윈도우 깜박이기 - FlashWindow(windowHandle) /// <summary> /// 윈도우 깜박이기 /// </summary> /// <param name="windowHandle">윈도우 핸들</param> /// <returns>처리 결과</returns> public static bool FlashWindow(IntPtr windowHandle) { FLASHWINFO info = new FLASHWINFO(); info.Size = Convert.ToUInt32(Marshal.SizeOf(info)); info.WindowHandle = windowHandle; info.Flag = FLASHW_ALL | FLASHW_TIMERNOFG; info.Count = uint.MaxValue; info.Timeout = 0; return (FlashWindowEx(ref info) == 0); } #endregion } } |
▶ MainForm.cs
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using System; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 타이머 /// </summary> private Timer timer; private int count = 0; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.timer = new Timer(); this.timer.Interval = 1000; Deactivate += Form_Deactivate; this.timer.Tick += timer_Tick; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 폼 비활성화시 처리하기 - Form_Deactivate(sender, e) /// <summary> /// 폼 비활성화시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Deactivate(object sender, EventArgs e) { this.timer.Enabled = true; } #endregion #region 타이머 틱 처리하기 - timer_Tick(sender, e) /// <summary> /// 타이머 틱 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void timer_Tick(object sender, EventArgs e) { this.count++; if(this.count == 3) // 비활성화 3초후부터 해당 작업 표시줄을 깜박인다. { this.timer.Enabled = false; this.count = 0; TaskbarHelper.FlashWindow(Handle); } } #endregion } } |
