(Version sent to the list w/o PDF attachment)
Bart McDonald wrote:
> Craig,
> Thanks for the response. To answer your question, unfortunately not. I am
> using Visual Studio 6 VC++ and am not familiar with the build utility you
> referenced.
Unsurprisingly. `gdb' is the GNU Debugger, a debugging tool used on
UNIX/Linux platforms. Us UNIX geeks tend to assume everyone, or at least
everyone doing software development, uses UNIX/Linux systems unless they
say otherwise.
I (thankfully) know almost nothing about VC++ 6. I've used VC++ 9 a bit
and could offer general instructions on how to send a useful crash dump
from that, but I understand that 6 is very different and a lot more
limited. I'm not surprised you're having issues tracking down the actual
fault.
Possibly stupid question: Why on earth are you still using VC++6 when
you can get copies of VC++9 express for free from Microsoft? Code compat
issues?
> I am a programmer of 15+ years but I am new to the whole open
> source thing. Regretfully, I am not familiar with extracting files from svn
> or anything like that. As I mentioned, it crashes when I replicate the
> helloworld app into 3 pages. It crashes in the 3rd instance of CreatePage.
> For that application, I use Visual Studio 2008. Here is the HelloWorld
> function that crashes on the 3rd CreatePage call.
Attached is a tidied up version of your test function that compiles as a
self-contained test executable. That's what you should really send, by
the way - something we can immediately compile and test with.
When built against the current svn version of podofo ( revision 1049 )
static library with gcc 4.3.3 on my Ubuntu laptop it works fine.
When built against an older svn revision (sorry, I didn't check which
one) which is closer to the last release, it did fail. The issue has
been fixed by Dom's rewrite of the PdfPagesTree, though.
Update to the latest svn and your issue should be resolved.
Subversion is a revision control system, very similar to CVS. It won't
be too different to whatever you're using (Visual SourceSafe? Perforce?
etc). If you're not using revision control, by the way, start yesterday.
There are Subversion plugins for newer versions of Visual Studio, but
you'll have to do things differently. There's a great Subversion client
for Windows called TortoiseSVN which I strongly recommend that you install:
http://tortoisesvn.tigris.org/
then you can just check out the latest version of PoDoFo from svn using
TortoiseSVN. The SVN URL is:
https://podofo.svn.sourceforge.net/svnroot/podofo/podofo/trunk
We don't publish snapshot zip / tar.gz files of svn, since it's so easy
to just fetch the current code from SourceForge's subversion services.
--
Craig Ringer
#include <podofo/podofo.h>
using namespace PoDoFo;
#include <iostream>
void HelloWorld( const char* pszFilename )
{
PdfStreamedDocument document( pszFilename );
PdfPage* pPage;
PdfPage* pPage2;
PdfPage* pPage3;
PdfPainter painter;
PdfFont* pFont;
pPage = document.CreatePage( PdfPage::CreateStandardPageSize( ePdfPageSize_Letter ) );
if( !pPage )
{
PODOFO_RAISE_ERROR( ePdfError_InvalidHandle );
}
painter.SetPage( pPage );
pFont = document.CreateFont( "Arial" );
if( !pFont )
{
PODOFO_RAISE_ERROR( ePdfError_InvalidHandle );
}
pFont->SetFontSize( 18.0 );
painter.SetFont( pFont );
painter.SetColor( 1.0, 0.0, 0.0 );
painter.DrawText( 56.69, pPage->GetPageSize().GetHeight() - 56.69, "PODOFO Software Rocks!" );
painter.FinishPage();
pPage2 = document.CreatePage( PdfPage::CreateStandardPageSize( ePdfPageSize_Letter ) );
if( !pPage2 )
{
PODOFO_RAISE_ERROR( ePdfError_InvalidHandle );
}
painter.SetPage( pPage2 );
pFont->SetFontSize( 18.0 );
painter.SetFont( pFont );
painter.SetColor( 1.0, 0.0, 0.0 );
painter.DrawText( 56.69, pPage2->GetPageSize().GetHeight() - 56.69,
"PODOFO Software Rolls!" );
painter.FinishPage();
//<<<<< Here is where it crashes
pPage3 = document.CreatePage( PdfPage::CreateStandardPageSize( ePdfPageSize_Letter ) );
if( !pPage3 )
{
PODOFO_RAISE_ERROR( ePdfError_InvalidHandle );
}
painter.SetPage( pPage3 );
pFont->SetFontSize( 18.0 );
painter.SetFont( pFont );
painter.SetColor( 1.0, 0.0, 0.0 );
painter.DrawText( 56.69, pPage3->GetPageSize().GetHeight() - 56.69, "PODOFO Software Rocks again!" );
painter.FinishPage();
/*
* Set some additional information on the PDF file.
*/
document.GetInfo()->SetCreator ( PdfString("examplahelloworld - A PoDoFo test application") );
document.GetInfo()->SetAuthor ( PdfString("Dominik Seichter") );
document.GetInfo()->SetTitle ( PdfString("Hello World") );
document.GetInfo()->SetSubject ( PdfString("Testing the PoDoFo PDF Library") );
document.GetInfo()->SetKeywords( PdfString("Test;PDF;Hello World;") );
document.Close();
}
int main(int argc, char * argv[])
{
if (argc == 2)
{
HelloWorld(argv[1]);
}
else
{
std::cerr << "Usage: hello [outfile.pdf]" << std::endl;
}
return 0;
}
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