Want to use VB.net to do a soft oscilloscope to USB port or serial port data, encounter problems when dealing with dynamic line drawing, a new data received after the line segment will delete the data in front of the painting line, stupid idea is to traverse every time in front of the line at a time, there's a better way? Every time I draw line segments is put inside a 50 ms timer,

CodePudding user response:

Redraw the front line no problem ah,
You can compare like this:
A) not only accept data line drawing, with full black graphics brush,
B) the normal line drawing, graphics,
Is there a difference between the CPU?