首先, 调用系统 API, 这里如果要引用神马的, 就不一一列出了, 大家自己引用一下.


	复制代码 代码如下:

	

	[StructLayout(LayoutKind.Sequential)]

	public struct MARGINS

	{

	public int Left;

	public int Right;

	public int Top;

	public int Bottom;

	}

	

	[DllImport("dwmapi.dll", PreserveSig = false)]

	public static extern void DwmExtendFrameIntoClientArea

	(IntPtr hwnd, ref MARGINS margins);

	

	[DllImport("dwmapi.dll", PreserveSig = false)]

	public static extern bool DwmIsCompositionEnabled();


然后重写两个事件:


	复制代码 代码如下:

	

	protected override void OnLoad(EventArgs e)

	{

	if (DwmIsCompositionEnabled())

	{

	MARGINS margin = new MARGINS();

	margin.Right = margin.Left = margin.Bottom = margin.Top = -1;

	DwmExtendFrameIntoClientArea(this.Handle, ref margin);

	}

	base.OnLoad(e);

	}

	

	protected override void OnPaintBackground(PaintEventArgs e)

	{

	base.OnPaintBackground(e);

	if (DwmIsCompositionEnabled())

	{

	e.Graphics.Clear(Color.Black);

	}

	}