I need help - I can help - DLL function: SaveToString

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DLL function: SaveToString

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Category: For Users of the Library
Forum Name: I need help - I can help
Forum Description: Problems and solutions while programming with the Debenu Quick PDF Library and Debenu PDF Viewer SDK
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=787
Printed Date: 17 May 24 at 1:24PM
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Topic: DLL function: SaveToString

Posted By: JanN
Subject: DLL function: SaveToString
Date Posted: 20 Sep 07 at 9:05AM

Hi!

Has anybody used the function SaveToString from DLL? What I experience is that I only get the first 768 byte of the document. Can anyone tell me how to make it work?

Thanks in advance.

Regards,
Jan

Replies:

Posted By: Ingo
Date Posted: 20 Sep 07 at 9:22AM

Hi Jan!

Without looking into the function this moment ...
Perhaps the read-in-loop is the problem?
Normally such loop begins with "...until eof...".
If i look inside pdf-files with notepad i often see the eof-sign anywhere inside (not at the end!) of the pdf-content. Perhaps SaveToStr stops at this eof?

Best regards,
Ingo

Posted By: JanN
Date Posted: 20 Sep 07 at 9:26AM

Hi Ingo!

Unfortunately the break is not that clear. The returned string ends in between a pdf stream object:

....
>>
startxref
0
%%EOF
9 0 obj
<<
/Type /Catalog
/Pages 10 0 R
>>
endobj
10 0 obj
<<
/Type /Pages
/Kids [ 11 0 R 1 0 R ]
/Count 2
>>
endobj
20 0 obj
<< /Length 21 0 R /S 46
/Filter /FlateDecode
>>
stream
x�c```c``Z�� .� ��

Could it be that this somehow is a limitation of Delphi when using DLLs!?

Posted By: JanN
Date Posted: 20 Sep 07 at 9:27AM

Probably useful information: I'm using Delphi 7.

Posted By: marian_pascalau
Date Posted: 20 Sep 07 at 3:23PM

Hi there, do not use that function. Because of string manipulations you may get truncated in the wrong place. You should use instead the last ActiveX version toghether with SaveToStream function.

Best regards, Marian