plotting a binary file by using Qwt

[Alex22]

You have 4 Byte time, 4 Byte value and so on.
Read them and append each to a QVector<double> and use
QwtPlotCurve::setSamples (const QVector< double > &xData, const QVector< double > &yData)
to plot it.

thanks for your answer. i have 1000 kB data in file. please help me how i can read and append?