完善了“如何在C#中使用Win32和其他库”中关于EnumDesktops()函数的回调代码，可运行。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
namespace ConsoleApplication1
{
class Program
{
delegate bool EnumDesktopProc([MarshalAs(UnmanagedType.LPTStr)]string desktopName, int lParam);
[DllImport("user32.dll", CharSet = CharSet.Auto)]
static extern bool EnumDesktops(IntPtr windowStation, EnumDesktopProc callback, int lParam);
[DllImport("user32.dll", CharSet = CharSet.Auto)]
static extern IntPtr GetProcessWindowStation();
static bool OnDesktop(string name, int param)
{
Console.WriteLine(name);
return true;
}
static void Main(string[] args)
{
EnumDesktops(GetProcessWindowStation(), OnDesktop, 0);
}
}
}
/// <summary>
/// 比较两幅图片是否一致（使用Marshal.ReadByte方式）
/// </summary>
/// <param name="bitmap1">图片1</param>
/// <param name="bitmap2">图片2</param>
/// <returns>如果两幅图片相同，返回0；如果图片1小于图片2，返回小于0的值；如果图片1大于图� ......
1.连接数据库文件
<add name="LocalSqlServer" connectionString="Data Source=.\SQLExpress;Integrated Security=True;AttachDBFilename=|DataDirectory|TimeTracker.mdf;User Instance=true" />
SqlConnectionStringBuilder实例化时，要用到connectionString，如：SqlConnectionStringBuild builder = new SqlCon ......
