[SOLVED] Access violation
lazarus / 21-General

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petevick · 2022-11-09 10:45

I know this is probably an unanswerable question, but, one of my
programmes is creating an Access violation on a mates PC running
Windows 10 and OneDrive (may or may not be pertinent), when on my PC
running Windows 10 and OneDrive I don't get an Access violation. And
how the hell would one go about trying to find what's causing it if
you can't create the error ??

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Zvoni · 2022-11-09 10:48

Quote from: petevick on November 09, 2022, 11:45:52 amI know this is
probably an unanswerable question, but, one of my programmes is
creating an Access violation on a mates PC running Windows 10 and
OneDrive (may or may not be pertinent), when on my PC running Windows
10 and OneDrive I don't get an Access violation. And how the hell
would one go about trying to find what's causing it if you can't
create the error ??
Create a Logging-Feature in your program, and let it run on your mates
computer.
When the AV appears (Crash!) it should basically be the last entry in
the log-file

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petevick · 2022-11-09 11:57

Quote from: Zvoni on November 09, 2022, 11:48:47 amCreate a Logging-
Feature in your program, and let it run on your mates computer.
When the AV appears (Crash!) it should basically be the last entry in
the log-file
Thanks for the reply Zvoni, didn't even know this was possible 

I'm looking at using TEventLog, any idea what I should I set the
DefaultEventType to for an Access violation, etCustom, etDebug,
etError, etInfo or etWarning ??

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Zvoni · 2022-11-09 12:58

No idea.
Never worked with it.
Usually, i just use my own loggin (writing to a simple txt-file).
Kind of like (Aircode)
Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i {$IFDEF
MyDebug} //MyDebug is a global
variable/constantWriteToLog('MyProcedureName', 'VarValue1='+Value1);
//Add other information....{$IFEND} The moment your program crashes,
basically the last line in the txt is your primary indicator/suspect
for the crash.

Maybe someone else with experience with TEventLog can chip in, though
as i read it, TEventLog writes to the System-Log (!!)

Maybe LazLogger is the better Option?
https://wiki.freepascal.org/LazLogger

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petevick · 2022-11-10 07:01

So my 'mate' was using the wrong version of my app.....'apparently',
and surprisingly, the right version works without error

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Zvoni · 2022-11-10 08:24

Quote from: petevick on November 10, 2022, 08:01:56 amSo my 'mate' was
using the wrong version of my app.....'apparently', and surprisingly,
the right version works without error 
Muhaha, the "classic"

OTOH, it does seem to indicate, that you might have been "lucky".
Unhandled errors and all that rot.

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petevick · 2022-11-10 08:43

Quote from: Zvoni on November 10, 2022, 09:24:34 amOTOH, it does seem
to indicate, that you might have been "lucky".
Unhandled errors and all that rot.
The newer version was to fix the Access violation error that was
happening in Windows using OneDrive, duplicate folders and all that
rubbish.