C# 任务管理器关闭程序，触发程序中的什么事件？
C# 任务管理器关闭程序，触发程序中的什么事件？

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ApplicationExit？？？ 可以试试
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不触发事件。
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不明白 你具体要干什么
你是要判断自己的程序是否关闭
还是要关闭一个程序 还是任务管理器的关机
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ApplicationExit
在这个事件里写代码，就会在关闭的时候触发
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不会接收到任何的消息，也不会触发任何的事件，你的程序占用的资源有可能不被清理，比如：打开的文件、数据库的连接等。


我猜你是想接收“关闭的事件”，然后防止你的程序从任务管理器结束吧？
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要看怎么关闭了。

是选择程序，关闭，还是选择进程，然后选择终止进程。后者没有事件。
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这个应该比较底层了吧，比如360的一些东西，任务管理器关闭的时候就会提示，这个应该需要和系统文件打交道。其他一般程序，关闭就关闭了，不一定要触发事件吧
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参考，windows的消息机制，使用覆盖父类api，来监听
类的话，覆盖
窗体父类
protected override void WndProc(ref Message m)
{//这里自己试验一下是QUIT还是CLOSE什么的，反正关闭前都是先发消息的
if (m.Msg == (int)WindowsMessages.WM_PARENTNOTIFY)
{自己写逻辑}
base.WndProc(ref m);
}

enum WindowsMessages
{
WM_ACTIVATE = 0x6,
WM_ACTIVATEAPP = 0x1C,
WM_AFXFIRST = 0x360,
WM_AFXLAST = 0x37F,
WM_APP = 0x8000,
WM_ASKCBFORMATNAME = 0x30C,
WM_CANCELJOURNAL = 0x4B,
WM_CANCELMODE = 0x1F,
WM_CAPTURECHANGED = 0x215,
WM_CHANGECBCHAIN = 0x30D,
WM_CHAR = 0x102,
WM_CHARTOITEM = 0x2F,
WM_CHILDACTIVATE = 0x22,
WM_CLEAR = 0x303,
WM_CLOSE = 0x10,
WM_COMMAND = 0x111,
WM_COMPACTING = 0x41,
WM_COMPAREITEM = 0x39,
WM_CONTEXTMENU = 0x7B,
WM_COPY = 0x301,
WM_COPYDATA = 0x4A,
WM_CREATE = 0x1,
WM_CTLCOLORBTN = 0x135,
WM_CTLCOLORDLG = 0x136,
WM_CTLCOLOREDIT = 0x133,
WM_CTLCOLORLISTBOX = 0x134,
WM_CTLCOLORMSGBOX = 0x132,
WM_CTLCOLORSCROLLBAR = 0x137,
WM_CTLCOLORSTATIC = 0x138,
WM_CUT = 0x300,
WM_DEADCHAR = 0x103,
WM_DELETEITEM = 0x2D,
WM_DESTROY = 0x2,
WM_DESTROYCLIPBOARD = 0x307,
WM_DEVICECHANGE = 0x219,
WM_DEVMODECHANGE = 0x1B,
WM_DISPLAYCHANGE = 0x7E,
WM_DRAWCLIPBOARD = 0x308,
WM_DRAWITEM = 0x2B,
WM_DROPFILES = 0x233,
WM_ENABLE = 0xA,
WM_ENDSESSION = 0x16,
WM_ENTERIDLE = 0x121,
WM_ENTERMENULOOP = 0x211,
WM_ENTERSIZEMOVE = 0x231,
WM_ERASEBKGND = 0x14,
WM_EXITMENULOOP = 0x212,
WM_EXITSIZEMOVE = 0x232,
WM_FONTCHANGE = 0x1D,
WM_GETDLGCODE = 0x87,
WM_GETFONT = 0x31,
WM_GETHOTKEY = 0x33,
WM_GETICON = 0x7F,
WM_GETMINMAXINFO = 0x24,
WM_GETOBJECT = 0x3D,
WM_GETTEXT = 0xD,
WM_GETTEXTLENGTH = 0xE,
WM_HANDHELDFIRST = 0x358,
WM_HANDHELDLAST = 0x35F,
WM_HELP = 0x53,
WM_HOTKEY = 0x312,
WM_HSCROLL = 0x114,
WM_HSCROLLCLIPBOARD = 0x30E,
WM_ICONERASEBKGND = 0x27,
WM_IME_CHAR = 0x286,
WM_IME_COMPOSITION = 0x10F,
WM_IME_COMPOSITIONFULL = 0x284,
WM_IME_CONTROL = 0x283,
WM_IME_ENDCOMPOSITION = 0x10E,
WM_IME_KEYDOWN = 0x290,
WM_IME_KEYLAST = 0x10F,
WM_IME_KEYUP = 0x291,
WM_IME_NOTIFY = 0x282,
WM_IME_REQUEST = 0x288,
WM_IME_SELECT = 0x285,
WM_IME_SETCONTEXT = 0x281,
WM_IME_STARTCOMPOSITION = 0x10D,