c#获取系统文件缓存大小

Question

我正在尝试获取当前系统文件缓存大小,如下所示.但是,当我运行此代码时,没有任何内容返回,有人可以看到我出错的地方吗？仅供参考,链接是GetSystemFileCache.

    [DllImport("kernel32", SetLastError = true, CharSet = CharSet.Unicode)]
    public static extern bool GetSystemFileCacheSize(
        ref IntPtr lpMinimumFileCacheSize,
        ref IntPtr lpMaximumFileCacheSize,
        ref IntPtr lpFlags
        );

    static void Main(string[] args)
    {            
        IntPtr lpMinimumFileCacheSize = IntPtr.Zero;
        IntPtr lpMaximumFileCacheSize = IntPtr.Zero;
        IntPtr lpFlags = IntPtr.Zero;

        bool b = GetSystemFileCacheSize(ref lpMinimumFileCacheSize, ref lpMaximumFileCacheSize, ref lpFlags);
    }

Answer 1

        bool b = GetSystemFileCacheSize(ref lpMinimumFileCacheSize, ref lpMaximumFileCacheSize, ref lpFlags);

        Console.WriteLine(lpMinimumFileCacheSize);
        Console.WriteLine(lpMaximumFileCacheSize);

对我来说很好.

输出:

1048576
2143289344

Windows 7 Pro x32