是PictureBox画线的最佳方法

Question

iam drawing trajectory of a device on real time basis sending data via serial port. Iam using a picturebox and bitmap image(so that trajectory is not gone when my window is not active) to plot the path.

The problem is that the drawing the path is using 20% of CPU (Intel Pentium 4, 3.0 GHz) and i think its too much. Is picture box the correct way to plot the path??

thanks in advance...

Answer 1

如果您只是想画一条线，那么请看一下此http://msdn.microsoft.com/zh-cn/library/aa287522%28v=vs.71%29.aspx