(new SpecialCharacter(dc, SpecialCharacterType. Let's add a line break into the 1st paragraph. Run run1 = new Run(dc, "This is a first line in 1st paragraph!") Open the result for demonstration purposes. Save the 1st document page to the file in PNG format.īitmap page = dc.GetPaginator().Pages.Rasterize(300, ) Shape shape = db.InsertShape(.SmileyFace, new (50, 50, LengthUnit.Millimeter)) Instead you need to write the image first into a memory stream: Bitmap bm2 this. Add a graphics figure into the paragraph. Remember PNG Images are ‘special’ In addition to the above issue remember that you can’t save PNG images directly into the output stream because of some issues with that particular format. Insert 2nd line with own formatting to the 2nd paragraph.ĭb.CharacterFormat.FontColor = ĭb.CharacterFormat.UnderlineStyle = UnderlineType.Single Insert a line break into the 2nd paragraph. (section.Blocks as Paragraph).ParagraphFormat.Alignment = HorizontalAlignment.Center ĭb.CharacterFormat.FontColor = ĭb.Write("This is a first line in 2nd paragraph.") Add 2nd line to the 1st paragraph, create 2nd paragraph. Add a line break into the 1st paragraph.ĭb.InsertSpecialCharacter(SpecialCharacterType.LineBreak) Add 1st paragraph with formatted text.ĭb.CharacterFormat.FontColor = ĭb.Write("This is a first line in 1st paragraph!") String docPath = Create a new document and DocumentBuilder.ĭocumentBuilder db = new DocumentBuilder(dc) public static void CreateImageUsingDocumentBuilder() Way 1: Creating a new document using DocumentBuilderĭocumentBuilder is a powerful class that is associated with a DocumentCore and allows dynamic document building from scratch or the addition of new elements to an existing document.Įverything that is possible with DocumentBuilder is also possible when using the classes of the DOM (Document Object Model) directly, but usually require more lines of code than using DocumentBuilder. Using DOM (Document Object Model) directly. Use any of them, which is more clear to you: The link in Thorsten's posts verifies the validity of my post in this thread.Here we'll you show two ways to create the same Image (PNG) document from a scratch. "If Yes, then what is the correct approach." "Is it really possible to get image information without loading into memory?" Yes as indicated in my post. Is it really possible to get image information without loading into memory? If Yes, then what is the correct approach.** Label3.Text = (Convert.ToInt32(Label2.Text) - originalMemory).ToString() + ", elapsed Time = " + sw.ElapsedMilliseconds.ToString() Ībove analysis adding created a doubt. Label2.Text = GC.GetTotalMemory(false).ToString() Using (FileStream fs = new FileStream(imagePhysicalPath + imgLoc, FileMode.Open, FileAccess.Read)) Code Block 2 - Start :: Load image by using "Image.FromStream" method. using ( image = (imagePhysicalPath + imgLoc)) Code Block 1 - Start :: Load image by using "Image.FromFile" method. String imagePhysicalPath = ConfigurationSettings.AppSettings Image1.ImageUrl = ConfigurationSettings.AppSettings + imgLoc Long originalMemory = GC.GetTotalMemory(false) Get memory size before loading image class. Private void button1_Click(object sender, EventArgs e)įor (int i = 0 i 10 MB, and even system stalled.Ĭode used : protected void Page_Load(object sender, EventArgs e) *png-pictures* - but it does *not affect* the faster execution time: //using JohnWein's example from the other thread _The data will be read "automatically" from the stream if you - for instance - display the image. To display the image you - of course - need to load the image data. You can use it to get the width height etc properties. Verify using the Stopwatch to time it and one of the other overloads. The Image.FromStream() overload that takes 3 parameters doesn't load the image if the 3rd parameter is false. Which one of these does not load the image into memory? Or is there any other way?ī0-4c84-45fa-ba87-ad8c15d497cb but it doesn't say anything about Image.FromFile() method. /// code here to get image height and width /// code here to get image height and width from "srcImg" object.Ģ.use using (FileStream fs = new FileStream("c:/a.jpg", FileMode.Open, FileAccess.Read)) What would be best way to get height and width of an image (can be any format), and without loading image into memory?
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |