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  4. Reading data from Serial Port.

Reading data from Serial Port.

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graphicstutorial
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  • C Offline
    C Offline
    CNewbie
    wrote on last edited by
    #1

    I am drawing a newbie blank here. Can someone show me how to read 20 bytes from the serial port using this code: BOOL CSerialPort::ReadByte(BYTE &resp) { BYTE rx; resp=0; DWORD dwBytesTransferred=0; if (ReadFile (hComm, &rx, 1, &dwBytesTransferred, 0)) { if (dwBytesTransferred == 1) { resp=rx; return true; } } return false; } Thanks

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    • C CNewbie

      I am drawing a newbie blank here. Can someone show me how to read 20 bytes from the serial port using this code: BOOL CSerialPort::ReadByte(BYTE &resp) { BYTE rx; resp=0; DWORD dwBytesTransferred=0; if (ReadFile (hComm, &rx, 1, &dwBytesTransferred, 0)) { if (dwBytesTransferred == 1) { resp=rx; return true; } } return false; } Thanks

      W Offline
      W Offline
      wwwhb2000
      wrote on last edited by
      #2

      I think you can solve this problem by the following code: BYTE byte2Read[20]; for( int nRead=0; nRead<20;) { if( ReadByte( byte2Read[nRead] ) ) { nRead++; } } Coding,I love it! MM,I Love it 2!!

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