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Text File  |  2001-01-15  |  1.1 KB  |  38 lines
  1. //------------------------------------------
  2. // CenterImage.cs ⌐ 2001 by Charles Petzold
  3. //------------------------------------------
  4. using System;
  5. using System.Drawing;
  6. using System.Windows.Forms;
  7.  
  8. class CenterImage: PrintableForm
  9. {
  10.      Image image;
  11.  
  12.      public new static void Main()
  13.      {
  14.           Application.Run(new CenterImage());
  15.      }
  16.      public CenterImage()
  17.      {
  18.           Text = "Center Image";
  19.  
  20.           image = Image.FromFile("..\\..\\..\\Apollo11FullColor.jpg");
  21.      }
  22.      protected override void DoPage(Graphics grfx, Color clr, int cx, int cy)
  23.      {
  24.           grfx.PageUnit = GraphicsUnit.Pixel;
  25.           grfx.PageScale = 1;
  26.  
  27.           RectangleF rectf = grfx.VisibleClipBounds;
  28.  
  29.           float cxImage = grfx.DpiX * image.Width / 
  30.                                              image.HorizontalResolution;
  31.           float cyImage = grfx.DpiY * image.Height / 
  32.                                              image.VerticalResolution;
  33.  
  34.           grfx.DrawImage(image, (rectf.Width  - cxImage) / 2, 
  35.                                 (rectf.Height - cyImage) / 2);
  36.      }
  37. }
  38.