winform窗体闪烁问题解决方式

winform窗体闪烁问题解决方式

1、使用窗体双缓冲

SetStyle(ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer, true);
UpdateStyles();

窗体的DoubleBuffered 指示是否对控件进行双缓存处理。

2、使用CreateParams的使用解决闪屏问题

#region 解决添加背景图片时闪屏的问题
        protected override CreateParams CreateParams
        {
            get
            {
                CreateParams cp = base.CreateParams;
                cp.ExStyle |= 0x02000000;  // Turn on WS_EX_COMPOSITED
                if (this.IsXpOr2003 == true)
                {
                    cp.ExStyle |= 0x00080000;  // Turn on WS_EX_LAYERED
                    this.Opacity = 1;
                }
                return cp;
            }
        }

        /// <summary>
        /// 防止闪烁
        /// </summary>
        private Boolean IsXpOr2003
        {
            get
            {
                OperatingSystem os = Environment.OSVersion;
                Version vs = os.Version;
                if (os.Platform == PlatformID.Win32NT)
                    if ((vs.Major == 5) && (vs.Minor != 0))
                        return true;
                    else
                        return false;
                else
                    return false;
            }
        }
        #endregion