LoadFromFile fails

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   I'm using Quick PDF to render pdf files, it was working correctly up to last week, when the function LoadFromFile stopped to work without an apparent reason. The result code is 0, when I evoke the method LastErrorCode the code is 401. I thought it was lincense, but i bought it yesterday. Someone can help me? Thanks

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Betanin Members Profile Find Members Posts Beginner Joined: 08 Nov 11 Status: Offline Points: 4	Post Options Post Reply Quote Betanin Report Post Thanks(0) Quote Reply Topic: LoadFromFile fails Posted: 08 Nov 11 at 12:46PM
	I'm using Quick PDF to render pdf files, it was working correctly up to last week, when the function LoadFromFile stopped to work without an apparent reason. The result code is 0, when I evoke the method LastErrorCode the code is 401. I thought it was lincense, but i bought it yesterday. Someone can help me? Thanks

Dan Members Profile Find Members Posts Team Player Joined: 21 Oct 11 Location: US Status: Offline Points: 23	Post Options Post Reply Quote Dan Report Post Thanks(0) Quote Reply Posted: 08 Nov 11 at 2:39PM
	Which language are you programming in? To troubleshoot this I'd start with checking the return value from the UnlockKey method. If the unlock method fails code execution will continue but none of the functions will be available. I'm using the dll version of QPL in VB. Here is the code I use: Dim DLLPath As String = "D:/Bin/QuickPDFDLL.dll" Dim key As String = "your key here" Dim pdf As PDFLibrary = New PDFLibrary(DLLPath) If Not pdf.LibraryLoaded() Then Throw New Exception("QuickPDF Library Not Loaded") End If If pdf.UnlockKey(key) = 0 Then Throw New Exception("Did not unlock QuickPDF") End If Dan

machalla Members Profile Find Members Posts Beginner Joined: 07 Nov 11 Status: Offline Points: 2	Post Options Post Reply Quote machalla Report Post Thanks(0) Quote Reply Posted: 08 Nov 11 at 3:00PM
	A wild guess but perhaps you have upgraded from an older version of quickpdf to the latest V8. LoadFromFile has changed its syntax in Version 8. You need to specify a password field for the file even if its blank. Its possible this might be the cause of the code not working if you have updated to the latest Version 8 qpdf from previous versions. http://www.quickpdflibrary.com/help/quickpdf/LoadFromFile.php

Betanin Members Profile Find Members Posts Beginner Joined: 08 Nov 11 Status: Offline Points: 4	Post Options Post Reply Quote Betanin Report Post Thanks(0) Quote Reply Posted: 08 Nov 11 at 3:33PM
	Hy Dan, I'm programming in Delphi 2009, and i'm not using DLL, but the DCU's package. The return value of UnlockKey method is 1, it works correctly, my key is valid. Have you another tip? Thanks

Betanin Members Profile Find Members Posts Beginner Joined: 08 Nov 11 Status: Offline Points: 4	Post Options Post Reply Quote Betanin Report Post Thanks(0) Quote Reply Posted: 08 Nov 11 at 3:37PM
	Hi machalla, Unfortunatelly it can't be the problem, because I was in version 8.11 and now in 8.12. Thanks

Dan Members Profile Find Members Posts Team Player Joined: 21 Oct 11 Location: US Status: Offline Points: 23	Post Options Post Reply Quote Dan Report Post Thanks(0) Quote Reply Posted: 08 Nov 11 at 4:28PM
	The last error code indicates it could not open the file.. Perhaps there's something corrupted or 'special' about the pdf you are trying to load? I assume you're attempting to load the same file as you were when it was working? If so, it could be something that's no longer supported in 8.12 or a bug. Good luck, Dan Edited by Dan - 08 Nov 11 at 4:28PM

Betanin Members Profile Find Members Posts Beginner Joined: 08 Nov 11 Status: Offline Points: 4	Post Options Post Reply Quote Betanin Report Post Thanks(0) Quote Reply Posted: 08 Nov 11 at 4:42PM
	Hi Dan, I had checked the error code and all of your suppositions. The trouble started in version 8.11, where I made the component works correctly and another day with the same code, the same pdf file, the same component version and key stopped works. I thought it was my license wich was trial, but now that I bought the licence, the problem persist. Thanks

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: 09 Nov 11 at 1:13PM
	As mentioned in the official support case, this PDF is malformed and Acrobat fixes the file when it loads it. The fixed file now loads and renders correctly in QPL 8.11. Andrew