最近要做个控制台程序，在用户关闭程序的时候要做些处理，但控制台程序却没有WinForm的Closing或Closed事件，想想只能用API才捕捉消息来实现了，代码如下：
1
using System;
2using System.Windows.Forms;
3using System.Diagnostics;
4using System.Runtime.InteropServices;
5
6namespace ConsoleColsed
7
{
8
9public delegate bool ConsoleCtrlDelegate(int dwCtrlType);
10
11public class ClsMain
12
{
13 [DllImport("kernel32.dll")]
14 private static extern bool SetConsoleCtrlHandler(ConsoleCtrlDelegate HandlerRoutine,bool Add);
15 //当用户关闭Console时，系统会发送次消息
16 private const int CTRL_CLOSE_EVENT = 2;
17
18 [STAThread]
19 static void Main()
20 {
21 ClsMain cls=new ClsMain();
22
}
23
24 public ClsMain()
25 {
26 // 用API安装事件处理
27 ConsoleCtrlDelegate newDelegate=new ConsoleCtrlDelegate(HandlerRoutine);
28 bool bRet=SetConsoleCtrlHandler(newDelegate,true);
29 if(bRet==false) //安装事件处理失败
30 {
31 Debug.WriteLine("失败");
32 }
33 else
34 {
35 Console.WriteLine("ok");
36 Console.Read();
37 }
38 }
39 /// <summary>
40 /// 处理消息的事件
41 /// </summary>
42 private static bool HandlerRoutine(int CtrlType)
43 {
44 switch(CtrlType)
45 {
46 case CTRL_CLOSE_EVENT: //用户要关闭Console了
47 Debug.WriteLine("Close");
48 break;
49 }
50
51 return false;
52 }
53}
54
}
55
using System;2
using System.Windows.Forms;3
using System.Diagnostics;4
using System.Runtime.InteropServices;5
6
namespace ConsoleColsed7
{8
9
public delegate bool ConsoleCtrlDelegate(int dwCtrlType);10
11
public class ClsMain 12
{ 13
[DllImport("kernel32.dll")]14
private static extern bool SetConsoleCtrlHandler(ConsoleCtrlDelegate HandlerRoutine,bool Add);15
//当用户关闭Console时，系统会发送次消息16
private const int CTRL_CLOSE_EVENT = 2;17
18
[STAThread]19
static void Main() 20
{21
ClsMain cls=new ClsMain(); 22
}23
24
public ClsMain()25
{26
// 用API安装事件处理27
ConsoleCtrlDelegate newDelegate=new ConsoleCtrlDelegate(HandlerRoutine);28
bool bRet=SetConsoleCtrlHandler(newDelegate,true);29
if(bRet==false) //安装事件处理失败30
{31
Debug.WriteLine("失败");32
}33
else34
{35
Console.WriteLine("ok");36
Console.Read();37
}38
}39
/// <summary>40
/// 处理消息的事件41
/// </summary>42
private static bool HandlerRoutine(int CtrlType)43
{44
switch(CtrlType)45
{46
case CTRL_CLOSE_EVENT: //用户要关闭Console了47
Debug.WriteLine("Close");48
break;49
}50
51
return false;52
}53
}54
}55