Question

I’m using visual studio 2008

I have a control that dispays a processed image. Whenever the processing parameters are changed, I’d like to update this picture, but without flickering. If I could prevent windows from blanking the area before I paint, the flicker should, for the most part go away.

Question is, how to do this?

Something like:
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
Should do it, except that requires me to subclass the TableLayoutPanel control (something I spent an hour trying to do), and with what I achieved, that had no effect.

Is there an easy way to turn off background painting of my control?

Answer 1

Have you tried overriding the OnPaintBackground event and doing nothing?

protected override void OnPaintBackground(PaintEventArgs pevent)
{
}