窗体动态效果

来源：互联网发布：qq防红源码编辑：程序博客网时间：2024/05/01 17:18

[System.Runtime.InteropServices.DllImport("user32")]
        private static extern bool AnimateWindow(IntPtr hwnd, int dwTime, int dwFlags);
        const int AW_HOR_POSITIVE = 0x0001;
        const int AW_HOR_NEGATIVE = 0x0002;
        const int AW_VER_POSITIVE = 0x0004;
        const int AW_VER_NEGATIVE = 0x0008;
        const int AW_CENTER = 0x0010;
        const int AW_HIDE = 0x10000;
        const int AW_ACTIVATE = 0x20000;
        const int AW_SLIDE = 0x40000;
        const int AW_BLEND = 0x80000;

        /// <summary>
        /// 窗体由中心点放大
        /// </summary>
        /// <param name="hwnd"></param>
        public static void WindowZoomIn(IntPtr hwnd)
        {
            AnimateWindow(hwnd, 1000, AW_CENTER | AW_ACTIVATE);
        }
        /// <summary>
        /// 窗体由下往上收缩
        /// </summary>
        /// <param name="hwnd"></param>
        public static void WindowZoomOut(IntPtr hwnd)
        {
            AnimateWindow(hwnd, 1000, AW_SLIDE | AW_HIDE | AW_VER_NEGATIVE);
        }
}

在使用时只要在Form窗体的Load和FormClosing事件里分别加入以下代码：

/// <summary>
        /// 窗体启动
         /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_Load(object sender, EventArgs e)
        {
            //窗体由中心向四周放大
            AnimateWindowFrom.WindowZoomIn(this.Handle);
        }

        /// <summary>
        /// 窗体关闭
         /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            //窗体由下往上伸缩
            AnimateWindowFrom.WindowZoomOut(this.Handle);
        }