U盘与移动硬盘（带隐藏功能）屏蔽软件

//--------------------------------------------------------------------------- #include <vcl.h> #pragma hdrstop #include "Unit1.h" #include <Dbt.h> #include "Unit2.h" #include "Unit3.h" //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma resource "*.dfm" TForm1 *Form1; //--------------------------------------------------------------------------- __fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner) { } //--------------------------------------------------------------------------- void __fastcall TForm1::WndProc(TMessage &Message) { //如果是移动设备消息则进入处理 if(Message.Msg == WM_DEVICECHANGE) //帮助里面有这个消息的详细说明 { switch(Message.WParam) { case DBT_DEVICEARRIVAL: Memo1->Lines->Add(" 发现USB设备插入!"); LockWorkStation(); Timer2->Enabled=true; Form2->Show(); break; case DBT_DEVICEREMOVECOMPLETE: Memo1->Lines->Add(" USB设备被拔出!"); Timer2->Enabled=false; break; default: break; } } TForm::WndProc(Message); //最后别忘了把其他消息交给默认窗口函数处理 } //PDEV_BROADCAST_VOLUME dbvDev=(PDEV_BROADCAST_VOLUME)Message.LParam; void __fastcall TForm1::Timer1Timer(TObject *Sender) { ShowWindow(Application->Handle, SW_HIDE); } //--------------------------------------------------------------------------- void __fastcall TForm1::Button1Click(TObject *Sender) { ShowWindow(Application->Handle, SW_HIDE); } //--------------------------------------------------------------------------- void __fastcall TForm1::Timer2Timer(TObject *Sender) { LockWorkStation(); } //--------------------------------------------------------------------------- void __fastcall TForm1::Timer3Timer(TObject *Sender) { Form3->Show(); Timer3->Enabled=false; } //---------------------------------------------------------------------------