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    <p>As I see you want to eliminate control ASCII symbols. You could do it in the following way:</p> <pre><code>#include &lt;iostream&gt; #include &lt;string&gt; #include &lt;QtCore/QString&gt; #include &lt;QtCore/QByteArray&gt; using namespace std; // test data from your comment char data[] = { 0x49, 0x46, 0x50, 0x4a, 0x4b, 0x51, 0x52, 0x43, 0x2c, 0x31, 0x32, 0x33, 0x2e, 0x34, 0x2c, 0x54, 0x2c, 0x41, 0x2c, 0x2b, 0x33, 0x30, 0x2e, 0x30, 0x30, 0x2c, 0x41, 0x2c, 0x2d, 0x33, 0x30, 0x2e, 0x30, 0x30, 0x2c, 0x41, 0x2a, 0x05, 0x0d, 0x0a }; // functor to remove control characters struct toAscii { // values &gt;127 will be eliminated too char operator ()( char value ) const { if ( value &lt; 32 &amp;&amp; value != 0x0d &amp;&amp; value != 0x0a ) return '.'; else return value; } }; int main(int argc,char* argv[]) { string s; transform( &amp;data[0], &amp;data[sizeof(data)], back_inserter(s), toAscii() ); cout &lt;&lt; s; // STL string // convert to QString ( if necessary ) QString str = QString::fromStdString( s ); QByteArray d = str.toAscii(); cout &lt;&lt; d.data(); // QString return 0; } </code></pre> <p>The code above prints the following in console:</p> <pre><code>IFPJKQRC,123.4,T,A,+30.00,A,-30.00,A*. </code></pre> <p>If you have continuous stream of data you'll get something like:</p> <pre><code>IFPJKQRC,123.4,T,A,+30.00,A,-30.00,A*. IFPJKQRC,123.4,T,A,+30.00,A,-30.00,A*. IFPJKQRC,123.4,T,A,+30.00,A,-30.00,A*. IFPJKQRC,123.4,T,A,+30.00,A,-30.00,A*. IFPJKQRC,123.4,T,A,+30.00,A,-30.00,A*. </code></pre>
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    1. POHex to String Conversion C++/C/Qt?
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    1. USKirill V. Lyadvinsky
    1. USKirill V. Lyadvinsky
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    1. COthere in lies the problem jlaep. I wanted 5 after A* and it got printed ".". Do you understand the issue now. 5 is the checksum which is given as 0x05 but isn't printed
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      1. USrocknroll
    2. COIf checksum will be 0x49 for instance, then what you expecting to be printed? 'I' or `49`?
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      1. USKirill V. Lyadvinsky
    3. COI expect it to print character 1
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