String값을 char로 변경하고 싶습니다.
소스는 아래와 같습니다~~
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    iFileHandle=FileOpen(FileOpen1->Dialog->FileName,fmOpenRead);
    iFileLength=FileSeek(iFileHandle,0,2);
    FileSeek(iFileHandle,0,0);
    pszBuffer=new char[iFileLength+1];
    iBytesRead=FileRead(iFileHandle,pszBuffer,iFileLength);
    FileClose(iFileHandle);

참고//    iBytesRead=181182->Hex값은 02 DE D0
    AnsiString total=IntToHex(iBytesRead,6);

        char sendData[18];

             sendData[0]=0x81;
             sendData[1]=0x21;
             sendData[2]=0x00;
             sendData[3]=0x00;
             sendData[4]=0x41;
             sendData[5]=0x10;
             sendData[6]=0x00;
             sendData[7]=0x0C;
             sendData[8]=0x30;
             sendData[9]=0x31;
             sendData[10]=0x33;
             sendData[11]=0x38;
             sendData[12]=0x00;

//          sendData[13]=여기에 iBytesRead값을 입력
             sendData[14]=0x02;
             sendData[15]=0x00;
             sendData[16]=0x00;
             sendData[17]=0x00;