Solved

Does 0 memory address on AV mean anything?

Posted on 2003-12-02
3
227 Views
Last Modified: 2010-04-05
Hello,

A user got an Access Violation with the following message:

Access violation at address 00000000. Read of address 00000000.

He couldn't tell me exactly what he was doing at the time, and what he did that led up to the AV. So there's little (or nothing) I can do to troubleshoot this.

However, I find it interesting that the address was 00000000 and am wondering if that's indicative of anything in particular.

Any help would be appreciated.

Ron
"FeralCTO"
0
Comment
Question by:FeralCTO
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 1

Expert Comment

by:roknjohn
ID: 9859796
Possibly you are accessing properties of a form that hasn't been created yet.  Just a SWA Guess.
0
 
LVL 8

Accepted Solution

by:
gmayo earned 500 total points
ID: 9859905
00000000 is a nil pointer. As roknjohn suggested, possibly a form, but could be any class really, or a dynamic array  that hasn't been initialised, or a record pointer not initialised, or anything. Not much information to go on.

Geoff M.
0
 
LVL 27

Expert Comment

by:kretzschmar
ID: 9859993
yep, geoff is right, nil is an ordinary 0
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
find a node in VST 2 93
Wincontrol not (correctly) drawn 15 59
"Could not obtain OLE control window handle" under Delphi XE8 8 87
Posting a string with PostMessage 23 49
A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
Introduction The parallel port is a very commonly known port, it was widely used to connect a printer to the PC, if you look at the back of your computer, for those who don't have newer computers, there will be a port with 25 pins and a small print…
Are you ready to implement Active Directory best practices without reading 300+ pages? You're in luck. In this webinar hosted by Skyport Systems, you gain insight into Microsoft's latest comprehensive guide, with tips on the best and easiest way…

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question