有没有办法以编程方式在任务栏中使控制台窗口闪烁

Question

基本上我做了一个控制台应用程序,执行一些需要几分钟的任务.我想让它在任务栏中闪现,让我知道它什么时候做完了.

Answer 1

使用@Zack发布的答案和另一个找到控制台应用程序的句柄,我想出了这个并且效果很好.

class Program
{
    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool FlashWindowEx(ref FLASHWINFO pwfi);

    [StructLayout(LayoutKind.Sequential)]
    public struct FLASHWINFO
    {
        public UInt32 cbSize;
        public IntPtr hwnd;
        public UInt32 dwFlags;
        public UInt32 uCount;
        public Int32 dwTimeout;
    }

    public const UInt32 FLASHW_ALL = 3;

    static void Main(string[] args)
    {
        Console.WriteLine("Flashing NOW");
        FlashWindow(Process.GetCurrentProcess().MainWindowHandle);
        Console.WriteLine("Press any key to continue");
        Console.ReadKey();
    }

    private static void FlashWindow(IntPtr hWnd)
    {
        FLASHWINFO fInfo = new FLASHWINFO();

        fInfo.cbSize = Convert.ToUInt32(Marshal.SizeOf(fInfo));
        fInfo.hwnd = hWnd;
        fInfo.dwFlags = FLASHW_ALL;
        fInfo.uCount = UInt32.MaxValue;
        fInfo.dwTimeout = 0;

        FlashWindowEx(ref fInfo);
    }
}

Answer 2

结合@Zack 评论中链接的问题中的答案并使用它获取控制台窗口的 hwnd，我能够让它工作。这是我创建的类：

public static class FlashWindow
{
    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool FlashWindowEx(ref FLASHWINFO pwfi);
    [DllImport("kernel32.dll")]
    static extern IntPtr GetConsoleWindow();

    [StructLayout(LayoutKind.Sequential)]
    public struct FLASHWINFO
    {
        public UInt32 cbSize;
        public IntPtr hwnd;
        public UInt32 dwFlags;
        public UInt32 uCount;
        public UInt32 dwTimeout;
    }

    public const UInt32 FLASHW_ALL = 3;

    public static void Flash()
    {
        FLASHWINFO fInfo = new FLASHWINFO();

        fInfo.cbSize = Convert.ToUInt32(Marshal.SizeOf(fInfo));
        fInfo.hwnd = GetConsoleWindow();
        fInfo.dwFlags = FLASHW_ALL;
        fInfo.uCount = UInt32.MaxValue;
        fInfo.dwTimeout = 0;

        FlashWindowEx(ref fInfo);
    }
}

它永远不会停止闪烁，直到它关闭，但这对我的目的来说并不重要。

Answer 3

我读到通过任何直接方式都无法获得控制台窗口的窗口句柄,但实际上它在.NET中看起来非常简单.所以,它与这个问题几乎相同:

class Program
{
    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool FlashWindowEx(ref FLASHWINFO pwfi);

    [StructLayout(LayoutKind.Sequential)]
    public struct FLASHWINFO
    {
        public UInt32 cbSize;
        public IntPtr hwnd;
        public UInt32 dwFlags;
        public UInt32 uCount;
        public UInt32 dwTimeout;
    }

    public const UInt32 FLASHW_STOP = 0;
    public const UInt32 FLASHW_CAPTION = 1;
    public const UInt32 FLASHW_TRAY = 2;
    public const UInt32 FLASHW_ALL = 3;
    public const UInt32 FLASHW_TIMER = 4;
    public const UInt32 FLASHW_TIMERNOFG = 12; 

    static void Main(string[] args)
    {
        // Give you a few seconds to alt-tab away :)
        Thread.Sleep(2000);

        // Flash on the task bar, until the window becomes the foreground window.
        // Constants for other behaviors are defined above.
        FLASHWINFO fInfo = new FLASHWINFO();
        fInfo.cbSize = Convert.ToUInt32(Marshal.SizeOf(fInfo));
        fInfo.hwnd = Process.GetCurrentProcess().MainWindowHandle;
        fInfo.dwFlags = FLASHW_TRAY | FLASHW_TIMERNOFG;
        fInfo.uCount = UInt32.MaxValue;
        fInfo.dwTimeout = 0;
        FlashWindowEx(ref fInfo);

        // Wait for input so the app doesn't finish right away.
        Console.ReadLine();
    }
}