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VB real time curve
4.0
Draw real-time curve in VB is more difficult, generally apply third-party controls or the Windows API function to complete, but if you real-time curve is not very high, as long as the current general situation is shown, then we can directly VB application give us space to complete. In principle, directly in the curve plotted in Form are possible, MSDN is directly above a lot of routines to draw graphics inside in Form, Form container as graphics rendering, but most applications Form inevitable there will be many other controls so we choose PictureBox plotted as a container. Draw real-time curve is generally accomplished by means of the Timer control, use the Timer control, serial or other instruments regularly monitored data sent PictureBox1, while drawing curves generally drawn a line chart, using PictureBox1 the Line method to draw.
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