c# 实现win7 Aero磨砂效果

 

 public partial class Form1:Form
    {
        #region 实现win7 Aero磨砂效果
        [StructLayout(LayoutKind.Sequential)]
        public struct MARGINS
        {
            public int Left;
            public int Right;
            public int Top;
            public int Bottom;
        }

        [DllImport("dwmapi.dll", PreserveSig = false)]
        static extern void DwmExtendFrameIntoClientArea(IntPtr hwnd, ref MARGINS margins);

        [DllImport("dwmapi.dll", PreserveSig = false)]
        static extern bool DwmIsCompositionEnabled(); //Dll 导入 DwmApi

        protected override void OnLoad(EventArgs e)
        {
            //如果启用Aero
            if (DwmIsCompositionEnabled())
            {
                MARGINS m = new MARGINS();
                m.Right = -1; //设为负数,则全窗体透明
                DwmExtendFrameIntoClientArea(this.Handle, ref m); //开启全窗体透明效果
            }
            base.OnLoad(e);
        }

        protected override void OnPaintBackground(PaintEventArgs e)
        {
            base.OnPaintBackground(e);
            if (DwmIsCompositionEnabled())
            {
                e.Graphics.Clear(Color.Black); //将窗体用黑色填充（Dwm 会把黑色视为透明区域）
            }
        }
        #endregion
}