C# 控制台窗口的顯示與隱藏

1. 定義一個Consolse幫助類，如下：

/// <summary>
/// 控制台幫助類
/// </summary>
public static class ConsoleHelper
{
    /// <summary>
    /// 獲取窗口句柄
    /// </summary>
    /// <param name="lpClassName"></param>
    /// <param name="lpWindowName"></param>
    /// <returns></returns>
    [DllImport("user32.dll", SetLastError = true)]
    private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

    /// <summary>
    /// 設置窗體的顯示與隱藏
    /// </summary>
    /// <param name="hWnd"></param>
    /// <param name="nCmdShow"></param>
    /// <returns></returns>
    [DllImport("user32.dll", SetLastError = true)]
    private static extern bool ShowWindow(IntPtr hWnd, uint nCmdShow);

    /// <summary>
    /// 隱藏控制台
    /// </summary>
    /// <param name="ConsoleTitle">控制台標題(可為空,為空則取默認值)</param>
    public static void hideConsole(string ConsoleTitle = "")
    {
        ConsoleTitle = String.IsNullOrEmpty(ConsoleTitle) ? Console.Title : ConsoleTitle;
        IntPtr hWnd = FindWindow("ConsoleWindowClass", ConsoleTitle);
        if (hWnd != IntPtr.Zero)
        {
            ShowWindow(hWnd, 0);
        }
    }

    /// <summary>
    /// 顯示控制台
    /// </summary>
    /// <param name="ConsoleTitle">控制台標題(可為空,為空則去默認值)</param>
    public static void showConsole(string ConsoleTitle = "")
    {
        ConsoleTitle = String.IsNullOrEmpty(ConsoleTitle) ? Console.Title : ConsoleTitle;
        IntPtr hWnd = FindWindow("ConsoleWindowClass", ConsoleTitle);
        if (hWnd != IntPtr.Zero)
        {
            ShowWindow(hWnd, 1);
        }
    }
}

2. 程序中調用，如下：

ConsoleHelper.hideConsole();

3. 注意：如果程序是只能啟動一個，則可以用上面的方法控制控制台的顯示與隱藏；否則需要在初始化時對控制台的標題賦值，如下：

Console.Title = Guid.NewGuid().ToString();