WPF 学习笔记 Areo玻璃效果的接触

    在WPF中使用Areo玻璃效果：

首先定义结构体Margins

    public struct Margins
{
   public int left;
   public int right;
   public int top;
   public int bottom;
   public Margins(thickness t)
   {
   left=(int)t.Left;
   right=(int)t.Right;
   top=(int)t.Top;
   bottom=(int )t.Bottom;
   }
  
  
}

public class GlassHelper
{
  [Dllimport("dwmapi.dll",preserveSig=false)]
  public static extern  bool DwmIsCompositionEnabled();
 
  [Dllimport("dwmapi.dll",preserveSig=false)]
  DwmExtendFrameIntoClientArea(IntPtr hwnd,ref Margins margins);
 
  public bool AreoWindow(window win,thickness t)
  {
  if (!DwmIsCompositionEnabled()) return false;
   IntPtr hwnd=new WindowInteropHelper(win).Handle;
   if (hwnd=hwnd.Zero) throw new InvalidOperationException(no window is available);
   win.Background=Brushes.Transparent;
   hwndSource.FromHwnd(hwnd).CompositionTarget.BackColor=Colors.Transparent;
   Margins m=new Margins(t);
    DwmExtendFrameIntoClientArea(IntPtr hwnd,ref m);
  }
  }

 具体的可参考http://msdn.microsoft.com/zh-cn/library/ms748975.aspx#Y404