*using bcb6 (borland) c++ builder
I did paint box and in OnPaint event of this method I draw axis system.
In addition, in this form I have timer and in timer method I draw lines, but I want that in each time only one line will be on the axis system, means, I want to erase the line before I draw the next line.
I tried to do: paintbox1->canvas->invalidate() in the timer method but it doesn't work.
any ideas what can be the solution for that?
Thanks!