远程关机 c++builder

//--------------------------------------------------------------------------- #include <vcl.h> #pragma hdrstop #include "main.h" //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma resource "*.dfm" TForm1 *Form1; //--------------------------------------------------------------------------- __fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner) { } //--------------------------------------------------------------------------- void TForm1::SendWithMAC(AnsiString Mac) { //MAC版本 if( Mac == "" ) { ShowMessage("MAC地址不能为空!"); return; } if( Mac.Length() != 12 ) { ShowMessage("MAC长度不够!"); return; } Mac = Mac.UpperCase(); int i = 0; unsigned char val[6]; int len = 0; for ( i=1; i <= 12; i++ ) { if ( !((Mac[i] >= 0x41 && Mac[i] <= 0x46) || (Mac[i] >= 0x30 && Mac[i] <= 0x39)) ) { ShowMessage("MAC地址无效!"); return; } } for ( i=1; i < 12; i += 2,len++ ) { if ( Mac[i] >= 0x41 && Mac[i] <= 0x46 ) val[len] = (Mac[i]-0x37)*16; else val[len] = (Mac[i]-0x30)*16; if ( Mac[i+1] >= 0x41 && Mac[i+1] <= 0x46 ) val[len] += Mac[i+1]-0x37; else val[len] += Mac[i+1]-0x30; } unsigned char temp[102]; for( i=0; i < 6; i++ ) temp[i] = 0xff; for( i=0; i < 16; i++ ) for( int j=0; j < 6; j++ ) temp[len++] = val[j]; AnsiString str, m_LocalIP; str = m_LocalIP = Powersock1->LocalIP; for( i=0; i < 3; ++i ) str = str.SubString((str.Pos(".")+1),(str.Length()-str.Pos("."))); NMUDP1->RemoteHost = m_LocalIP.SubString(1,(m_LocalIP.Length()-str.Length())) + "255"; //"192.168.0.255"; NMUDP1->SendBuffer(temp,102,102); } void __fastcall TForm1::Button1Click(TObject *Sender) { SendWithMAC(Edit1->Text.Trim()); } //---------------------------------------------------------------------------