Read contents from the file using QHTTP Read()?

[Gokulnathvc]

I am using the following code to read the contents from the file using QHTTP.

QHttp http;  
        QByteArray buf;
        QByteArray pad;
        pad.resize(40);
        buf.append(pad);
        //buf +=file.read(segFileSize);        
        http.read(pad.data(),segFileSize);

QHttp http;  
        QByteArray buf;
        QByteArray pad;
        pad.resize(40);
        buf.append(pad);
        //buf +=file.read(segFileSize);        
        http.read(pad.data(),segFileSize);

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How to read the data depending upon the size given in the Read() function.