I want to make a flicker-free chart that is updated rapidly. I was able to make a chart side-by side with a picture box. The chart is updated and flickers and I used Bitblt to copy the contents of the chart window to the picture box and it looked great. I thought I had it but then when I try to hide the chart control, it doesn't work any more. The bitblt copies the contents of the screen "under" my invisible chart rather than the chart itself. I'm not sure if this whole idea makes sense but I sure would love to get it working. Can anyone help me on this?