Double-buffering in WinForms using WS_EX_COMPOSITED

gistfile1.cs

/// <summary>
/// A System.Windows.Forms.CreateParams that contains the required creation parameters
/// when the handle to the control is created.
/// </summary>
protected override CreateParams CreateParams
{
    get
    {
        CreateParams cp = base.CreateParams;
        cp.ExStyle |= 0x02000000; // WS_EX_COMPOSITED
        return cp;
    }
}