c#拦截u盘消息97633

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1、c#拦截u盘消息.txt你妈生你的时候是不是把人给扔了把胎盘养大？别把虾米不当海鲜。别把虾米不当海鲜。publicpartialclassForm1:Form{publicForm1(){InitializeComponent();}//方法一：//截取消息，进行处理publicboolPreFilterMessage(refSystem.Windows.Forms.Messagem){switch(m.Msg){case513:　　　　　　　//拦截左键单击事件　MessageBox.Show("哈哈，你点击了左键

2、被拦截！");returntrue;　　　　//返回true则消息被裁取，系统不再处理case516:　　　　　　　//拦截左键单击事件　MessageBox.Show("哈哈，你点击了右键被拦截！");returntrue;　　　　//返回true则消息被裁取，系统不再处理default:returnfalse;　　　//返回false则消息未被裁取，系统会处理}}//方法二：//截取消息，进行处理//protectedoverridevoidWndProc(refMessagem)//{//switch(m.Ms

3、g)//{//case17://MessageBox.Show("哈哈，你不能关闭计算机！");//m.Result=(IntPtr)0;//break;//case513://MessageBox.Show("哈哈，你不能点击左键！");//m.Result=(IntPtr)0;//break;//case516://MessageBox.Show("哈哈，你不能点击右键！");//m.Result=(IntPtr)0;//break;//default://base.WndProc(refm);//break;/

4、/}//}publicvoidShowDeviceChanged(stringmessage){switch(message){case"WM_DEVICECHANGE":this.richTextBox1.Text+="DeviceChangedr";break;case"WM_DEVICEMOVECOMPLETE":this.richTextBox1.Text+="DeviceMovedr";break;case"WM_DEVICEARRVIAL":this.richTextBox1.Text+="D

5、eviceArrivedr";break;}}protectedoverridevoidWndProc(refMessagem)//监视Windows消息{constintWM_DEVICECHANGE=0x219;constintWM_DEVICEARRVIAL=0x8000;//如果m.Msg的值为0x8000那么表示有U盘插入constintWM_DEVICEMOVECOMPLETE=0x8004;switch(m.Msg){caseWM_DEVICECHANGE:{ShowDeviceChanged("

6、WM_DEVICECHANGE");//if(m.WParam.ToInt32()==WM_DEVICEARRVIAL)ShowDeviceChanged("WM_DEVICEARRVIAL");elseif(m.WParam.ToInt32()==WM_DEVICEMOVECOMPLETE)ShowDeviceChanged("WM_DEVICEMOVECOMPLETE");}break;}base.WndProc(refm);//将系统消息传递自父类的WndProc}privatevoidForm1_Load(o

7、bjectsender,EventArgse){Application.AddMessageFilter(newMyFilter());}privatevoidForm1_FormClosed(objectsender,FormClosedEventArgse){}privatevoidForm1_FormClosing(objectsender,FormClosingEventArgse){Application.RemoveMessageFilter(newMyFilter());}}classMyFilter:

8、IMessageFilter//getstheleftmousebuttonmessages{publicboolPreFilterMessage(refMessagem){//if(m.Msg>=513&&m.Msg<=515)//{//Console.WriteLine("mouseleftbuttoneventNOTaccepted!Fi