C# 窗体制作Aero效果

[StructLayout(LayoutKind.Sequential)]
public struct MARGINS  //绘画窗体的大小
{
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();

protected override void OnLoad(EventArgs e)
{
if (System.Environment.OSVersion.Version.Major >= 6)//判断操作系统Vista及以上可使用
{
if (DwmIsCompositionEnabled())
{
MARGINS margins = new MARGINS();
margins.Right = margins.Left = margins.Top = margins.Bottom = this.Height;
DwmExtendFrameIntoClientArea(this.Handle, ref margins);
}
base.OnLoad(e);
}
}

protected override void OnPaintBackground(PaintEventArgs e)
{
base.OnPaint(e);
base.OnPaintBackground(e);
if (DwmIsCompositionEnabled())
{
e.Graphics.Clear(Color.Black);
}
}