タスクバーのフラッシュを紛失した場合

Question

私は以下のこのコードを見つけて、私のWinFormアプリケーションに実装して、ユーザーの多くが技術的には役に立たないようにしました。

残念ながら、何もしません。エラーや何も生成しません。それは単にそれをフラッシュにしません。

誰でも洞察力を提供できますか？ Win 7（x64）& Win XP（x86）で試してみましたが、両方で同じ結果が得られました。

私はそれをそう呼んでいます - >TaskbarFlasher.FlashWindow(this);私のメインフォームから。

[DllImport("user32.dll")] 
    private extern static bool FlashWindow(IntPtr hwnd, bool bInvert); 
    [DllImport("user32.dll")] 
    private extern static IntPtr GetForegroundWindow(); 

    /// <summary> 
    /// Notifies the user that the application requests attention 
    /// by flashing the taskbar if the form is not the current window. 
    /// </summary> 
    /// <param name="myForm">The form in question.</param> 
    public static void FlashWindow(Form myForm) 
    { 
     // if the current foreground window isn't this window, 
     // flash this window in task bar once every 1 second 
     if (GetForegroundWindow() != myForm.Handle) 
     { 
      FlashWindow(myForm.Handle, true); 
     } 
    } 

Answer 1

ネヴァーマインド、私は以下のリンクの助けを借りてそれを考え出した - >http://pietschsoft.com/post/2009/01/26/CSharp-Flash-Window-in-Taskbar-via-Win32-FlashWindowEx.aspx

仲間から感謝Chris Pietschmann SO Wisconsinite !!

public static class FlashWindow 
{ 
    [DllImport("user32.dll")] 
    [return: MarshalAs(UnmanagedType.Bool)] 
    private static extern bool FlashWindowEx(ref FLASHWINFO pwfi); 
    [StructLayout(LayoutKind.Sequential)] 
    private struct FLASHWINFO 
    { 
     /// <summary> 
     /// The size of the structure in bytes. 
     /// </summary> 
     public uint cbSize; 
     /// <summary> 
     /// A Handle to the Window to be Flashed. The window can be either opened or minimized. 
     /// </summary> 
     public IntPtr hwnd; 
     /// <summary> 
     /// The Flash Status. 
     /// </summary> 
     public uint dwFlags; 
     /// <summary> 
     /// The number of times to Flash the window. 
     /// </summary> 
     public uint uCount; 
     /// <summary> 
     /// The rate at which the Window is to be flashed, in milliseconds. If Zero, the function uses the default cursor blink rate. 
     /// </summary> 
     public uint dwTimeout; 
    } 
    /// <summary> 
    /// Stop flashing. The system restores the window to its original stae. 
    /// </summary> 
    public const uint FLASHW_STOP = 0; 

    /// <summary> 
    /// Flash the window caption. 
    /// </summary> 
    public const uint FLASHW_CAPTION = 1; 

    /// <summary> 
    /// Flash the taskbar button. 
    /// </summary> 
    public const uint FLASHW_TRAY = 2; 

    /// <summary> 
    /// Flash both the window caption and taskbar button. 
    /// This is equivalent to setting the FLASHW_CAPTION | FLASHW_TRAY flags. 
    /// </summary> 
    public const uint FLASHW_ALL = 3; 
    /// <summary> 
    /// Flash continuously, until the FLASHW_STOP flag is set. 
    /// </summary> 
    public const uint FLASHW_TIMER = 4; 
    /// <summary> 
    /// Flash continuously until the window comes to the foreground. 
    /// </summary> 
    public const uint FLASHW_TIMERNOFG = 12; 

    /// <summary> 
    /// Flash the spacified Window (Form) until it recieves focus. 
    /// </summary> 
    /// <param name="form">The Form (Window) to Flash.</param> 
    /// <returns></returns> 
    public static bool Flash(System.Windows.Forms.Form form) 
    { 
     // Make sure we're running under Windows 2000 or later 
     if (Win2000OrLater) 
     { 
      FLASHWINFO fi = Create_FLASHWINFO(form.Handle, FLASHW_ALL | FLASHW_TIMERNOFG, uint.MaxValue, 0); 
      return FlashWindowEx(ref fi); 
     } 
     return false; 
    } 
    private static FLASHWINFO Create_FLASHWINFO(IntPtr handle, uint flags, uint count, uint timeout) 
    { 
     FLASHWINFO fi = new FLASHWINFO(); 
     fi.cbSize = Convert.ToUInt32(Marshal.SizeOf(fi)); 
     fi.hwnd = handle; 
     fi.dwFlags = flags; 
     fi.uCount = count; 
     fi.dwTimeout = timeout; 
     return fi; 
    } 
    /// <summary> 
    /// Flash the specified Window (form) for the specified number of times 
    /// </summary> 
    /// <param name="form">The Form (Window) to Flash.</param> 
    /// <param name="count">The number of times to Flash.</param> 
    /// <returns></returns> 
    public static bool Flash(System.Windows.Forms.Form form, uint count) 
    { 
     if (Win2000OrLater) 
     { 
      FLASHWINFO fi = Create_FLASHWINFO(form.Handle, FLASHW_ALL, count, 0); 
      return FlashWindowEx(ref fi); 
     } 
     return false; 
    } 
    /// <summary> 
    /// Start Flashing the specified Window (form) 
    /// </summary> 
    /// <param name="form">The Form (Window) to Flash.</param> 
    /// <returns></returns> 
    public static bool Start(System.Windows.Forms.Form form) 
    { 
     if (Win2000OrLater) 
     { 
      FLASHWINFO fi = Create_FLASHWINFO(form.Handle, FLASHW_ALL, uint.MaxValue, 0); 
      return FlashWindowEx(ref fi); 
     } 
     return false; 
    } 
    /// <summary> 
    /// Stop Flashing the specified Window (form) 
    /// </summary> 
    /// <param name="form"></param> 
    /// <returns></returns> 
    public static bool Stop(System.Windows.Forms.Form form) 
    { 
     if (Win2000OrLater) 
     { 
      FLASHWINFO fi = Create_FLASHWINFO(form.Handle, FLASHW_STOP, uint.MaxValue, 0); 
      return FlashWindowEx(ref fi); 
     } 
     return false; 
    } 
    /// <summary> 
    /// A boolean value indicating whether the application is running on Windows 2000 or later. 
    /// </summary> 
    private static bool Win2000OrLater 
    { 
     get { return System.Environment.OSVersion.Version.Major >= 5; } 
    } 
}