为超图三维场景添加屏幕快照功能
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1 public static void saveSceneScreenShot(Control control)
2 {
3 Image objImage = getSceneScreenShot(control);
4 if (objImage != null)
5 {
6 SaveFileDialog saveImageDialog = new SaveFileDialog();
7 saveImageDialog.Title = "场景快照";
8 saveImageDialog.Filter = @"png|*.png|jpeg|*.jpg|bmp|*.bmp";
9 if (saveImageDialog.ShowDialog() == DialogResult.OK)
10 {
11 string fileName = saveImageDialog.FileName.ToString();
12 if (fileName != "" && fileName != null)
13 {
14 string fileExtName = fileName.Substring(fileName.LastIndexOf(".") + 1).ToString();
15 System.Drawing.Imaging.ImageFormat imgformat = System.Drawing.Imaging.ImageFormat.Png;
16 if (fileExtName != "")
17 {
18 switch (fileExtName)
19 {
20 case "jpg":
21 imgformat = System.Drawing.Imaging.ImageFormat.Jpeg;
22 break;
23 case "bmp":
24 imgformat = System.Drawing.Imaging.ImageFormat.Bmp;
25 break;
26 case "png":
27 imgformat = System.Drawing.Imaging.ImageFormat.Png;
28 break;
29 default:
30 break;
31 }
32
33 objImage.Save(fileName, imgformat);
34 }
35 }
36 }
37 }
38 }
39
40 public static Image getSceneScreenShot(Control control)
41 {
42 Image objImage = null;
43
44 try
45 {
46 int width = control.Width;
47 int height = control.Height;
48 Point pt = control.PointToScreen(new Point(0, 0)); // 客户区坐标转换为屏幕坐标
49
50 objImage = new Bitmap(width, height);
51
52 Graphics g = Graphics.FromImage(objImage);
53
54 g.CopyFromScreen(pt, new Point(0, 0), new Size(width, height));
55
56 IntPtr dc1 = g.GetHdc();
57
58 g.ReleaseHdc(dc1);
59 }
60 catch(Exception ex)
61 {
62 MessageBox.Show(ex.Message);
63 }
64
65 return objImage;
66 }
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