C# 桌面飘雪花效果

雪花桌面

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace Snow
{
    public partial class Form1 : Form
    {
        private static readonly Random rand = new Random（）;
        private readonly List SnowFlakes = new List（）;
        private int Tick = 0;
        private class SnowFlake
        {
            public float Rotation;
            public float RotVelocity;
            public float Scale;
            public float X;
            public float XVelocity;
            public float Y;
            public float YVelocity;
            public Image image;
        }

        Image screenImage;

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件       1894  2012-01-06 14:29  雪花桌面\51Aspx源码必读 .txt

     文件        119  2012-01-06 14:29  雪花桌面\bin\Debug\Resources\1.gif

     文件        188  2012-01-06 14:29  雪花桌面\bin\Debug\Resources\2.gif

     文件        278  2012-01-06 14:29  雪花桌面\bin\Debug\Resources\3.gif

     文件        476  2012-01-06 14:29  雪花桌面\bin\Debug\Resources\4.gif

     文件      17408  2012-01-06 14:29  雪花桌面\bin\Debug\Snow.exe

     文件      40448  2012-01-06 14:29  雪花桌面\bin\Debug\Snow.pdb

     文件      11608  2012-01-06 14:29  雪花桌面\bin\Debug\Snow.vshost.exe

     文件        490  2012-01-06 14:29  雪花桌面\bin\Debug\Snow.vshost.exe.manifest

     文件      30924  2012-01-06 14:29  雪花桌面\bin\Debug\test.bmp

     文件        119  2012-01-06 14:29  雪花桌面\bin\Release\Resources\1.gif

     文件       3774  2012-01-06 14:29  雪花桌面\bin\Release\Resources\111.ico

     文件        188  2012-01-06 14:29  雪花桌面\bin\Release\Resources\2.gif

     文件        278  2012-01-06 14:29  雪花桌面\bin\Release\Resources\3.gif

     文件        476  2012-01-06 14:29  雪花桌面\bin\Release\Resources\4.gif

     文件      16896  2012-01-06 14:29  雪花桌面\bin\Release\Snow.exe

     文件      34304  2012-01-06 14:29  雪花桌面\bin\Release\Snow.pdb

     文件      11608  2012-01-06 14:29  雪花桌面\bin\Release\Snow.vshost.exe

     文件        490  2012-01-06 14:29  雪花桌面\bin\Release\Snow.vshost.exe.manifest

     文件       5985  2012-01-06 14:29  雪花桌面\Form1.cs

     文件       3907  2012-01-06 14:29  雪花桌面\Form1.Designer.cs

     文件      12376  2012-01-06 14:29  雪花桌面\Form1.resx

     文件       4945  2012-01-06 14:29  雪花桌面\from.gif

     文件       6220  2012-01-06 14:29  雪花桌面\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件       1454  2012-01-06 14:29  雪花桌面\obj\Debug\GenerateResource-ResGen.read.1.tlog

     文件       1910  2012-01-06 14:29  雪花桌面\obj\Debug\GenerateResource-ResGen.write.1.tlog

     文件       4884  2012-01-06 14:29  雪花桌面\obj\Debug\Snow.csproj.FileListAbsolute.txt

     文件        847  2012-01-06 14:29  雪花桌面\obj\Debug\Snow.csproj.GenerateResource.Cache

     文件      17408  2012-01-06 14:29  雪花桌面\obj\Debug\Snow.exe

     文件       4352  2012-01-06 14:29  雪花桌面\obj\Debug\Snow.Form1.resources

............此处省略45个文件信息