How can I draw on Panel so it does not blink?

Question

This is my code. When I move cursor over Form it works, circle is moving but it is blinking. How can I fix this?

public partial class Preprocesor : Form
{
    in         


        

Answer 1

How bout overriding a panel user control and set Doublebuffered to true?

public partial class BufferPanel : Panel
{
    public BufferPanel()
    {
        SetStyle(ControlStyles.AllPaintingInWmPaint, true);
        SetStyle(ControlStyles.OptimizedDoubleBuffer, true);
        UpdateStyles();
    }
}