winform窗體閃爍問題解決方式

winform窗體閃爍問題解決方式

1、使用窗體雙緩衝

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

窗體的DoubleBuffered 指示是否對控件進行雙緩存處理。

2、使用CreateParams的使用解決閃屏問題

#region 解決添加背景圖片時閃屏的問題
        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>
        /// 防止閃爍
        /// </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