Resolved Double Buffer

[JuggaloBrotha]

When dealing with a user control I sometimes see code like this in the constructor:

Me.SetStyle(ControlStyles.OptimizedDoubleBuffer, True)

and

MyBase.DoubleBuffered = True

What's the difference?

 

[JohnH]

From ControlStyles Enumeration (System.Windows.Forms) help topic:

To fully enable double-buffering, you can set the OptimizedDoubleBuffer and AllPaintingInWmPaint bits to true. However the preferred method for enabling double buffering, which yields the same result, is to set the DoubleBuffered property for the control to true.

Also note that from Vista doublebuffering is built into the OS: see Desktop Window Manager - Wikipedia, the free encyclopedia