Debenu Quick PDF Library - PDF SDK Community Forum : Problem with CloseFile http://www.quickpdf.org/forum/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 05 Apr 2026 13:10:46 +0000 Sat, 15 Jul 2017 08:38:57 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.01 360 www.quickpdf.org/forum/RSS_post_feed.asp?TID=3482 <![CDATA[Debenu Quick PDF Library - PDF SDK Community Forum]]> http://www.quickpdf.org/forum/forum_images/QPDF_Forum_Title.png http://www.quickpdf.org/forum/ <![CDATA[Problem with CloseFile : Thank you for...]]> http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13857.html#13857 Author: GeorgeS
Subject: 3482
Posted: 15 Jul 17 at 8:38AM

Thank youfor your response and help.

You are right, CloseFile and ReleaseLibrary don't exist in the ActiveX versionof the QuickPDF Lib.
In the DLL-version of the library, there exists the ReleaseLibrary function.Within the ActiveX version this function does not exist. As Ingo mentionedreleasing the instance is just enough.

CloseFileis only used for the direct access file function and have to be used asoLib.DACloseFile(hPDF) after a DAOpenFile. If I do it this way, everything works fine!

Problem solved.

 

@tfrost

You areright, LoadFile returns a result code. DAOpenFile returns a handle thatI can close with DACloseFile.

Just asInfo: oLib is a name I used as object name. You can name it “qpdf”, “QuickPDF”or almost anything you like in the line:

qPdf = NEWCOM CLSID wClsIdLIB wLib                       

 In the way I have declared the QuickPDFlibrary, I don’t have to register the library. The DLL just has to be in theapplication directory or within the system search path.

 

Cheers,

George

]]> Sat, 15 Jul 2017 08:38:57 +0000 http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13857.html#13857 <![CDATA[Problem with CloseFile : Hi :)it seems to me that you&#039;re...]]> http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13856.html#13856 Author: Ingo
Subject: 3482
Posted: 14 Jul 17 at 9:12AM

Hi :)

it seems to me that you're right ;-)
I didn't see these "olib" - so this syntax from George have to be wrong.
I'm not familiar with PowerBasic but with the knowing we have now i would try CloseFile with "wlib"?
Anyway... i'm pretty sure that George is on the right way now...

]]> Fri, 14 Jul 2017 09:12:14 +0000 http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13856.html#13856 <![CDATA[Problem with CloseFile : The PowerBasic syntax is unfamiliar...]]> http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13855.html#13855 Author: tfrost
Subject: 3482
Posted: 13 Jul 17 at 11:30PM

The PowerBasic syntax is unfamiliar to me, but my point was that if olib.LoadFromFile 'works' and olib.PageCount 'works' (because both are QPDF functions) then 'olib' seems to be analogous to what I know as 'qpdf'. Given this fact, olib.CloseFile and olib.ReleaseLibrary are never going to be successful calls (unless 'olib' magically has two meanings at once).  We agree that the functions are not QPDF functions, so how can they be called as methods of 'olib'?]]> Thu, 13 Jul 2017 23:30:16 +0000 http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13855.html#13855 <![CDATA[Problem with CloseFile : Hi TFrost,i know that the functions...]]> http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13854.html#13854 Author: Ingo
Subject: 3482
Posted: 12 Jul 17 at 8:38PM

Hi TFrost,

i know that the functions are not from inside QuickPDF ;-)
From my opinion the prob exists cause CloseFile can't get control on the file cause the file is still under control of QuickPDF.
The Free from QuickPDF frees the instance and the file and after this CloseFile should work.
But i think you're right that it's not necessary ;-)

]]> Wed, 12 Jul 2017 20:38:33 +0000 http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13854.html#13854 <![CDATA[Problem with CloseFile : I hate to disagree with Ingo,...]]> http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13853.html#13853 Author: tfrost
Subject: 3482
Posted: 12 Jul 17 at 11:39AM

I hate to disagree with Ingo, and I know less than zero about PowerBasic.  But why are you calling a non-existent QPDF function named CloseFile at all?  LoadFromFile returns a 0 or 1 result code, not a handle; and the PDF file is already closed by this function, so no close is needed.  There is no CloseFile or ReleaseLibrary function in QPDF, and this may be why they both return an error.
]]> Wed, 12 Jul 2017 11:39:09 +0000 http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13853.html#13853 <![CDATA[Problem with CloseFile : Hi George,i think you have to...]]> http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13851.html#13851 Author: Ingo
Subject: 3482
Posted: 11 Jul 17 at 8:45PM

Hi George,

i think you have to do the "Free" first, before your CloseFile ...
This is how i would do it (Delphi):

   QP := TDebenuPDFLibrary1211.Create;
   try
      QP.LoadFromFile(Edit1.Text, '');

      If ( QP.EncryptionStatus > 0 ) Then
         QP.Decrypt;

//    . . .

      Save_Cursor := Screen.Cursor;
      Screen.Cursor := crHourglass;    { Show hourglass cursor }

//    Some file processing ...

      QP.SaveImageListItemDataToFile(...);

//    . . .

   finally
      Screen.Cursor := Save_Cursor;
      QP.Free;
//    Starting from here with your CloseFile...
   end;

Cheers and welcome here,
Ingo


]]> Tue, 11 Jul 2017 20:45:32 +0000 http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13851.html#13851 <![CDATA[Problem with CloseFile : Hi All, I do have such...]]> http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13845.html#13845 Author: GeorgeS
Subject: 3482
Posted: 04 Jul 17 at 11:18AM

Hi All,

I do havesuch a basic problem with CloseFile that I know, I must do something wrong. Aftertrying all possible changes I’m lost and I would try to ask for help.

I usePowerBasic Vers. 10.04, PDF-Library Vers. 13.12


FUNCTION PBMAIN () AS LONG

 

LOCAL oLib                                    AS IDISPATCH

LOCALhPdf, lResult, lPageCount               AS LONG

LOCAL wLib,wPassword, wPageText, wClsId,     AS WSTRING

 

wLib       = EXE.PATH$ +"DebenuPDFLibraryAX1312.dll"

wClsId     = GUID$("{6393DAEA-334E-4410-9582-5BE46DC383C2}")      'Version 13.12

vUnlockKey= “your key goes here”

 

oLib =NEWCOM CLSID wClsId LIB wLib                               'yes,works

OBJECTCALL oLib.UnlockKey(vUnlockKey) TO lResult                 'yes,works

           

OBJECTCALL oLib.LoadFromFile(wPdfFile, wPassword) TO hPdf ‘yes, works

'…..   Some more functions or even nothing (doesn’tmatter!)

'i.e.  OBJECT CALL oLib.PageCount() TO lPageCount                 'yes, works

 

OBJECTCALL oLib.CloseFile(hPdf)  TOlResult                      'NO gives Object Error

OBJECT CALLoLib.ReleaseLibrary() TO lResult                     'ERROR:

'if youdon’t do a CloseFile it gives you identical Object Error with ReleaseLibrary

 

END FUNCTION



If I do thesame functions with direct library calls (= none ActiveX Functions), I get reador write to invalid address errors on CloseFile.

I triedeverything I could think about to declare vars as Variant as DWords as WStringsZ,but the error still remains.

I hopesomebody would see what I did wrong.


Cheers,

George


PS: already did send the problem to support, but no reaction since last week



Edited by GeorgeS - 04 Jul 17 at 11:33AM]]> Tue, 04 Jul 2017 11:18:39 +0000 http://www.quickpdf.org/forum/problem-with-closefile_topic3482_post13845.html#13845