Question

I’ve seen the following code to enable double buffering on a winform:

// Activates double buffering  this.SetStyle(ControlStyles.DoubleBuffer |    ControlStyles.OptimizedDoubleBuffer |    ControlStyles.UserPaint |    ControlStyles.AllPaintingInWmPaint, true); this.UpdateStyles(); 

Is this different in any way from simply setting Form.DoubleBuffering = true?

Answer 1

Control.DoubleBuffering performs

SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, value); 

so your code sets ControlStyles.UserPaint as well (which probably has no effect at this point).