Scale pictures (C #)

2. Private Bitmap Zoomimage (Bitmap Bitmap, int destheight, int destwidth)
4. {
6. Try
8. {
10. System.Drawing.Image sourimage = bitmap;
12. int width = 0, height = 0;
14. //Proportional scaling
16. int sourwidth = sourimage.width;
18. int sourheight = sourimage.height;
20. if (sourheight > Destheight | | sourwidth > Destwidth)
22. {
24. if ((Sourwidth * destheight) > (sourheight * destwidth))
26. {
28. width = destwidth;
30. Height = (destwidth * sourheight)/sourwidth;
32. }
34. Else
36. {
38. Height = destheight;
40. width = (sourwidth * destheight)/sourheight;
42. }
44. }
46. Else
48. {
50. width = sourwidth;
52. Height = sourheight;
54. }
56. Bitmap Destbitmap = new Bitmap (Destwidth, destheight);
58. Graphics g = graphics.fromimage (Destbitmap);
60. G.clear (color.transparent);
62. //Set the drawing quality of the canvas
64. g.compositingquality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
66. G.smoothingmode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
68. G.interpolationmode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
70. G.drawimage (Sourimage, new Rectangle ((destwidth-width)/2, (Destheight-height)/2, width, height), 0, 0, Sourima Ge.  Width, Sourimage.height, GraphicsUnit.Pixel);
72. G.dispose ();
74. //Set compression quality
76. System.Drawing.Imaging.EncoderParameters encoderparams = new System.Drawing.Imaging.EncoderParameters ();
78. long[] quality = new long[1];
80. QUALITY[0] = 100;
82. System.Drawing.Imaging.EncoderParameter Encoderparam = new System.Drawing.Imaging.EncoderParameter (  System.Drawing.Imaging.Encoder.Quality, quality);
84. Encoderparams.param[0] = Encoderparam;
86. Sourimage.dispose ();
88. return destbitmap;
90. }
92. Catch
94. {
96. return bitmap;
98. }
100. }

Scale pictures (C #)