Can't find source of com errors.

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VS2008

Hi,

I'm writing a SDI MFC application using C++ and VS 2008 which uses the xml DOM methods to parse xml documents and open them into the document view.

When I run in debug I get a lot of messages in the output like this:
First-chance exception at 0x7c812afb in BWE.exe Microsoft C++ exception: _com_error at memory location 0x00128334

I have debugged through my code and am checking HRESULTS and can't match any of the addresses with things in my code and the messages appear after my code has been executed and execution disappears off into the MFC code.

I want to get rid of these exceptions but really don't know what to do next. Is there any way to get any more info on what is causing them?

Thank you in advance to anyone who can help.

Posted 14-Aug-12 22:39pm

Jackie Lloyd

Updated 14-Aug-12 22:40pm

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Albert Holguin 15-Aug-12 10:43am

Do you get any assertions in debug mode?

Jackie Lloyd 15-Aug-12 14:29pm

Hi, apologies but I am still learning a lot - I am running in debug so would it be obvious in the output window if I was getting any assertions?

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Pablo Aliskevicius · Accepted Answer · 2012-08-15T04:09:00

Solution 1

Stay cool.

First chance exception messages most often do not mean there is a problem in the code. For applications / components which handle exceptions gracefully, first chance exception messages let the developer know that an exceptional situation was encountered and was handled.[^]

Hope this helps,

Pablo.

Posted 15-Aug-12 4:09am

Pablo Aliskevicius

Comments

Jochen Arndt 15-Aug-12 11:38am

+5 for this correct and helpful answer. Don't know why it has been one voted.

JackDingler 15-Aug-12 13:31pm

+5 to bring it up a bit. This is a correct answer.

Jackie Lloyd 15-Aug-12 14:27pm

thanks, I think I need to read up on what a First Chance Exception is now then. (Gave +5 too)

Can't find source of com errors.

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Can't find source of com errors.

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