[poppler] Problem with using Win32 poppler-qt4

[cobra.yu]

Dear Crazy Sage,

     I'm only using libpoppler-qt4.dll to render PDF pages to images, so I don't think I will concentrate on this error. But, frankly speaking, I tried to use Windows Task Manager to monitor the memory usage when running my program (modified "qq27"), it seems fine without memory leaks on Windows 7. I'm not sure about this or similar effects on XP or Vista. It's just a rough test. 
     If this causes a big problem on you, maybe MinGW is a workable alternative. When built by MinGW, no such exceptions occurred.

              Cobra
-----Original message-----
From:Gleb "Crazy Sage" Igumnov <crazy_sage at cannonfodder.su>
To:cobra.yu <cobra.yu at hyweb.com.tw>
Date:Wed, 29 Jun 2011 20:57:12 +0600
Subject:Re: [poppler] Problem with using Win32 poppler-qt4

Hello, cobra.yu.
I solved first problem by using dynamic qt and poppler, but is there
something that can be done about heap exception? I'm planning to open
lots of pdf in my program and it'll be not cool to left such obvious,
but unsolvable memory leak.

> Dear Crazy Sage,

>      I didn't try the Win32 version of poppler and poppler-qt4 from
> windows.kde.org. Instead, I tried to build the poppler package under Win32.

> My environment for both building & execution:
> OS: MS Windows 7
> (msys) MinGW/TDM GCC & MS Visual Studio 2008 Professional
> Qt 4.6.x

>      The different building combinations both produced workable
> poppler & poppler-qt4 libraries. I didn't meet your first problem in either case.
>      Yes, "delete document or delete pdfPage" would make an
> exception on HEAP. I commented "delete pdfPage" but reserved "delete document". It seems fine for me.

>               Cobra

> -----Original message-----
> From:Gleb "Crazy Sage" Igumnov <crazy_sage at cannonfodder.su>
> To:poppler at lists.freedesktop.org
> Date:Tue, 28 Jun 2011 00:02:48 +0600
> Subject:[poppler] Problem with using Win32 poppler-qt4

> Hi all.
> I have downloaded Win32 version of poppler and poppler-qt4 from
> windows.kde.org and I have got two major problems when I've tried to
> compile and run example from
> http://people.freedesktop.org/~aacid/docs/qt4/
> 1. Program silently crashes on pdfPage->renderToImage(),
pdfPage->>renderThumbnail() and pdfPage->text() works well.
> 2. Program silently crashes on either delete document or delete
> pdfPage. I've tried to comment either one of lines, so I can tell,
> that it doesn't matter.
> Did anyone come across with such problems and knew ways to solve them?

> Environment
> OS: MS Windows 7
> MS Visual Studio 2008 Professional
> Qt 4.7




-- 
Best regards,
 Gleb "Crazy Sage" Igumnov                          mailto:crazy_sage at cannonfodder.su