当前文件路径：WebSnap/Snap/GetImage.cs

		            
  1/**//*
  2 * 修改者：吴鹏(AlphaWu)
  3 * Blog:Http://AlphaWu.CoM
  4 * 获取网站缩略图代码
  5 * 2006 圣诞节
  6 * C#代码根据该页面“http://www.codeproject.com/useritems/website_screenshot.asp”
  7 * VB.Net代码修改而来
  8 * 欢迎修改和传播
  9 * 最好能保留该信息^_^
 10 * 也欢迎大家访问我的博客
 11 * Http://AlphaWu.Cnblogs.CoM
 12 * 
 13 * Http://AlphaWu.CoM
 14 * 
 15 * 
 16 */
 17using System;
 18using System.Drawing;
 19using System.Drawing.Imaging;
 20using System.Windows.Forms;
 21
 22namespace Snap
 23...{
 24    public class GetImage
 25    ...{
 26        int S_Height;
 27        int S_Width;
 28        int F_Height;
 29        int F_Width;
 30        string MyURL;
 31
 32        public int ScreenHeight
 33        ...{
 34            get
 35            ...{
 36                return S_Height;
 37            }
 38            set
 39            ...{
 40                S_Height = value;
 41            }
 42        }
 43
 44        public int ScreenWidth
 45        ...{
 46            get
 47            ...{
 48                return S_Width;
 49            }
 50            set
 51            ...{
 52                S_Width = value;
 53            }
 54        }
 55
 56        public int ImageHeight
 57        ...{
 58            get
 59            ...{
 60                return F_Height;
 61            }
 62            set
 63            ...{
 64                F_Height = value;
 65            }
 66        }
 67
 68        public int ImageWidth
 69        ...{
 70            get
 71            ...{
 72                return F_Width;
 73            }
 74            set
 75            ...{
 76                F_Width = value;
 77            }
 78        }
 79
 80        public string WebSite
 81        ...{
 82            get
 83            ...{
 84                return MyURL;
 85            }
 86            set
 87            ...{
 88                MyURL = value;
 89            }
 90        }
 91
 92        public GetImage(string WebSite, int ScreenWidth, int ScreenHeight, int ImageWidth, int ImageHeight)
 93        ...{
 94            this.WebSite = WebSite;
 95            this.ScreenHeight = ScreenHeight;
 96            this.ScreenWidth = ScreenWidth;
 97            this.ImageHeight = ImageHeight;
 98            this.ImageWidth = ImageWidth;
 99        }
100
101        public  Bitmap GetBitmap()
102        ...{
103            WebPageBitmap Shot = new WebPageBitmap(this.WebSite, this.ScreenWidth, this.ScreenHeight);
104
105            Shot.GetIt();
106            Bitmap Pic = Shot.DrawBitmap(this.ImageHeight, this.ImageWidth);
107            return Pic;
108        }
109    }
110
111    public class WebPageBitmap
112    ...{
113        WebBrowser MyBrowser;
114        string URL;
115        int Height;
116        int Width;
117
118        public  WebPageBitmap(string url, int width, int height)
119        ...{
120            this.URL = url;
121            this.Width = width;
122            this.Height = height;
123            MyBrowser = new WebBrowser();
124            MyBrowser.ScrollBarsEnabled = false;
125            MyBrowser.Size = new Size(this.Width, this.Height);
126        }
127
128        public void GetIt()
129        ...{
130            MyBrowser.Navigate(this.URL);
131            while (MyBrowser.ReadyState != WebBrowserReadyState.Complete)
132            ...{
133                Application.DoEvents();
134            }
135        }
136
137        public Bitmap DrawBitmap(int theight, int twidth)
138        ...{
139            Bitmap myBitmap = new Bitmap(this.Width, this.Height);
140            Rectangle DrawRect = new Rectangle(0, 0, this.Width, this.Height);
141            MyBrowser.DrawToBitmap(myBitmap, DrawRect);
142            System.Drawing.Image imgOutput = myBitmap;
143            System.Drawing.Bitmap oThumbNail = new Bitmap(twidth, theight, imgOutput.PixelFormat);
144            Graphics g = Graphics.FromImage(oThumbNail);
145
146            g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighSpeed;
147            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
148            g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;
149
150            Rectangle oRectangle = new Rectangle(0, 0, twidth, theight);
151            g.DrawImage(imgOutput, oRectangle);
152
153            try
154            ...{
155                return oThumbNail;
156            }
157            catch
158            ...{
159                return null;
160            }
161            finally
162            ...{
163                imgOutput.Dispose();
164                imgOutput = null;
165                MyBrowser.Dispose();
166                MyBrowser = null;
167            }
168
169        }
170    }
171}
172