Hallo, I have a form that has a Richtextbox control.
Every control is generate with cp.ExStyle |= 0x02000000; to reduce flickering.

And the richtextbox has
this.SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint,
true);
base.DoubleBuffered = true;

But when I maximize the form, the new part of the richtextbox is for some seconds, black.
Could you suggest me how to avoid this effect?
Thank you.
Jessy.