[Mono-bugs] [Bug 67383][Maj] New - Response.OutputStream problem

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Changed by jan@patware.si.

http://bugzilla.ximian.com/show_bug.cgi?id=67383

--- shadow/67383	2004-10-02 11:02:58.000000000 -0400
+++ shadow/67383.tmp.4961	2004-10-02 11:02:58.000000000 -0400
@@ -0,0 +1,103 @@
+Bug#: 67383
+Product: Mono: Class Libraries
+Version: unspecified
+OS: 
+OS Details: debian 2.6.7
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Major
+Component: Sys.Drawing.
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: jan@patware.si               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: gonzalo@ximian.com,jordi@ximian.com,rkumar@novell.com
+Summary: Response.OutputStream problem
+
+This a problem with showing images, that are created on fly in C# using
+ASP.NET. Ravindra has take some time to investigate this problem but he did
+not find out where is a problem. This is what his wrote me:
+
+Response.OutputStream is basically a MemoryStream object. And, I found
+that System.Drawing is able to write to a MemoryStream object locally. I
+have a test program that shows this behavior (attached writeimage.cs).
+Somehow, it is not able to get thru the Response.OutputStream. I'm still
+not sure, if this is a problem in System.Drawing or XSP.
+
+This a code, where problem is (Ravindra has make some changes, to be able
+to test it easily):
+
+using System;
+using System.IO;
+using System.Drawing;
+using System.Drawing.Imaging;
+using System.Drawing.Drawing2D;
+using System.Drawing.Text;
+
+namespace ImageWriteOnFly
+{
+        /// <summary>
+        /// Summary description for writeOnimage.
+        /// </summary>
+        public class writeOnimage
+        {
+                public static void Main ()
+                {
+                        string datoteka = "image.jpg";
+//Request["file"].ToString();
+                        string napis = "image title";
+//Request["write"].ToString();
+                        // "polozaj" is x where to start writing
+                        int polozaj = napis.Length;
+                        polozaj = 37-((polozaj-1)*4);
+
+                        //Load the Image to be written on.
+                        Bitmap bitMapImage = new System.Drawing.Bitmap(
+datoteka); //Server.MapPath(datoteka) );
+                        Graphics graphicImage = Graphics.FromImage(
+bitMapImage );
+
+                        //Smooth graphics is nice.
+                        graphicImage.SmoothingMode = SmoothingMode.AntiAlias;
+
+                        
+                        SolidBrush drawBrush = new SolidBrush(Color.White);
+                        
+                        //Write your text.
+                        graphicImage.DrawString( napis, new Font("Times New
+Roman CE", 12,FontStyle.Bold ), drawBrush, new Point( polozaj, 7 ) );
+
+                        //Set the content type
+                        //Response.ContentType="image/jpeg";
+
+                        MemoryStream ms = new MemoryStream ();
+                        //Save the new image to the response output stream.
+                        //bitMapImage.Save(Response.OutputStream,
+ImageFormat.Jpeg);
+                        //bitMapImage.Save("response.jpg", ImageFormat.Jpeg);
+                        bitMapImage.Save(ms, ImageFormat.Jpeg);
+                        FileStream fs = new FileStream ("response.jpg",
+FileMode.Create);
+                        fs.Write (ms.GetBuffer(), 0, (int) ms.Length);
+
+
+                        //Clean house.
+                        graphicImage.Dispose();
+                        bitMapImage.Dispose();
+                }
+        }
+}
+
+Status:
+The image on the pages are not shown.
+
+Versions:
+My current version is 1.0.1
+
+Test can be seen on http://bober.patware.si:1214/test/ when my comuter is on.
+
+Do you need more information?
+
+Jan