http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 24 Jun 2026 15:43:59 +0000 Sun, 06 Feb 2011 20:27:37 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=1726 http://www.quickpdf.org/forum/forum_images/QPDF_Forum_Title.png http://www.quickpdf.org/forum/ http://www.quickpdf.org/forum/memory-leak_topic1726_post7561.html#7561 Author: hansmerkl
Subject: 1726
Posted: 06 Feb 11 at 8:27PM

That's probably the way to go.]]> Sun, 06 Feb 2011 20:27:37 +0000 http://www.quickpdf.org/forum/memory-leak_topic1726_post7561.html#7561 http://www.quickpdf.org/forum/memory-leak_topic1726_post7559.html#7559 Author: Ingo
Subject: 1726
Posted: 06 Feb 11 at 8:15PM

Hi!

The DAFindPage-prob is already an older one and so i don't think that it will be fixed soon ;-)
But you can avoid the DA-functions.
Use the "normal" ones and with the current library version you won't have any disadvantages.

Cheers, Ingo
]]> Sun, 06 Feb 2011 20:15:47 +0000 http://www.quickpdf.org/forum/memory-leak_topic1726_post7559.html#7559 http://www.quickpdf.org/forum/memory-leak_topic1726_post7557.html#7557 Author: hansmerkl
Subject: 1726
Posted: 06 Feb 11 at 7:39PM

It's a good idea to close to the file from time to time. I hope the performance won't suffer too much.

I hope QuickPDF are aware of the DAFindPage problem and will fix it soon.


]]> Sun, 06 Feb 2011 19:39:27 +0000 http://www.quickpdf.org/forum/memory-leak_topic1726_post7557.html#7557 http://www.quickpdf.org/forum/memory-leak_topic1726_post7554.html#7554 Author: Ingo
Subject: 1726
Posted: 06 Feb 11 at 12:29PM

Hi Hans!

After DACloseFile
The "Free" should follow.
You can read here sometimes about memory-problems
as a result based on DAFindPage.

I've an old workaround to avoid this:
Using a counter like this (for a loop in a loop) ...

         QP := TQuickPDF0721.Create;
// . . .
                pc := pc + 1;
                if ( pc = 5 ) Then
                   begin
                      pc := 0;
                      QP.Free;
                      QP := TQuickPDF0721.Create;
//                    QP.UnlockKey('MyKey...');
// . . .                   
                   end;
// . . .
         QP.Free;



Edited by Ingo - 06 Feb 11 at 12:30PM]]> Sun, 06 Feb 2011 12:29:28 +0000 http://www.quickpdf.org/forum/memory-leak_topic1726_post7554.html#7554 http://www.quickpdf.org/forum/memory-leak_topic1726_post7551.html#7551 Author: hansmerkl
Subject: 1726
Posted: 05 Feb 11 at 10:22PM

The following C# code runs out of memory with even medium sized files. After calling DACloseFile the memory gets released. Am I missing something that has to be released?


    QuickPDFAX0723.PDFLibrary Lib = new QuickPDFAX0723.PDFLibrary();
            Lib.UnlockKey("xxxx");

            string fnIn = this.buttonEditPDF.Text;
            int DocHandle = Lib.DAOpenFileReadOnly(fnIn, "");

            int PageCount = Lib.DAGetPageCount(DocHandle);
            for (int i = 0; i < PageCount; i++)
            {
                int PageHandle = Lib.DAFindPage(DocHandle, i + 1);

                int ImageListHandle = Lib.DAGetPageImageList(DocHandle, PageHandle);
                int ImageCount = Lib.DAGetImageListCount(DocHandle, ImageListHandle);

                for (int ii = 0; ii < ImageCount; ii++)
                {
                    var ImageBuffer = Lib.DAGetImageDataToVariant(DocHandle, ImageListHandle, ii + 1);
                    byte[] b = ImageBuffer as byte[];
                }
            }

            MessageBox.Show("Done");

            Lib.DACloseFile(DocHandle);
]]> Sat, 05 Feb 2011 22:22:04 +0000 http://www.quickpdf.org/forum/memory-leak_topic1726_post7551.html#7551