List of breaking changes

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   Hi,
I'm upgrade a project from iSedQuickPDF to QuickPDF0811. My DelphiXE-compiler now shows me a lot of DCC-Errors. Do you have a list of replaced/changed functions? In the documentation I found that .Encrypted was replaced with .EncryptionStatus, but for the SetPassword I cannot find any replacement (looked in the reference guide, too). Looking the online-FAQ (http://www.quickpdflibrary.com/faq/removing-a-password.php) there are still samples to SetPassword. Somewhere in this forum I found SetAdvancePassword, but this function is missing in the reference guide so I cannot know it meanings.
Please help, I've the following code:
      FPDFDoc := FQPDF.LoadFromFile(pdfFile, '');
      try
        if (FQPDF.EncryptionStatus > 0) then
        begin
          //ns pw standard
          FQPDF.SetPassword('MyUsualPassword');
          if (FQPDF.Unencrypt = 0) then
            FQPDF.SetPassword('UsersUsualPassword');

best regards
Toni

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ToniSanta Members Profile Find Members Posts Beginner Joined: 19 Dec 05 Location: Italy Status: Offline Points: 7	Post Options Post Reply Quote ToniSanta Report Post Thanks(0) Quote Reply Topic: List of breaking changes Posted: 28 Sep 11 at 12:57PM
	Hi, I'm upgrade a project from iSedQuickPDF to QuickPDF0811. My DelphiXE-compiler now shows me a lot of DCC-Errors. Do you have a list of replaced/changed functions? In the documentation I found that .Encrypted was replaced with .EncryptionStatus, but for the SetPassword I cannot find any replacement (looked in the reference guide, too). Looking the online-FAQ (http://www.quickpdflibrary.com/faq/removing-a-password.php) there are still samples to SetPassword. Somewhere in this forum I found SetAdvancePassword, but this function is missing in the reference guide so I cannot know it meanings. Please help, I've the following code: FPDFDoc := FQPDF.LoadFromFile(pdfFile, ''); try if (FQPDF.EncryptionStatus > 0) then begin //ns pw standard FQPDF.SetPassword('MyUsualPassword'); if (FQPDF.Unencrypt = 0) then FQPDF.SetPassword('UsersUsualPassword'); best regards Toni

AndrewC Members Profile Find Members Posts Moderator Group Joined: 08 Dec 10 Location: Geelong, Aust Status: Offline Points: 841	Post Options Post Reply Quote AndrewC Report Post Thanks(0) Quote Reply Posted: 28 Sep 11 at 1:54PM
	A lot has changed between iSedPDF and Quick PDF Library 8.11. The Developer Guide will help you understand some of the basic usage of 8.11. You can find the PDF files in the QPL 8.11 installation directory. Here is some code that should help you start to understand the changes from the iSedPDF verison Andrew. 06/09/2011 07:47 PM 624,737 Quick PDF Library 8 Developer Guide.pdf 06/09/2011 07:12 PM 89,743 Quick PDF Library 8 Upgrade Warnings.pdf ret := QP.LoadFromFile(pdfFile, ''); if (ret <> 1) then if (QP.LastErrorCode == 404) ret := QP.LoadFromFile(pdfFile, 'MyUsualPassword'); if (ret = 1) and (QP.EncryptionAlgorithm() <> 0) QP.Decrypt(); QPDocId := QP.SelectedDocument(); // This docid is used with some QPL functions. Andrew try if (FQPDF.EncryptionStatus > 0) then begin //ns pw standard FQPDF.SetPassword('MyUsualPassword'); if (FQPDF.Unencrypt = 0) then FQPDF.SetPassword('UsersUsualPassword');

ToniSanta Members Profile Find Members Posts Beginner Joined: 19 Dec 05 Location: Italy Status: Offline Points: 7	Post Options Post Reply Quote ToniSanta Report Post Thanks(0) Quote Reply Posted: 28 Sep 11 at 2:53PM
	Hi, thanks for your answer, I will adapt and try the new approach to handle protections. Could several QP.LoadFromFile(..) till finding the correct password (there could be a list of predefined pwds in my application) be slower than the previous SetPassword? And just a second question: How would I have to handle files protected with user (open) and owner (modify) passwords? Will I have to open such a file first with user-password, save them to a new file and reopen it with then owner-password? For large files this could result memory-, diskspace- and timeconsuming. Or is there another way? best regards Toni