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Delphi Access Violation At Address Read Of Address


Xhi I disabled all my startup entries by msconfig but now i get more messages; take a look. more hot questions question feed lang-pascal about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation share|improve this answer answered Apr 27 '10 at 17:09 Loren Pechtel 6,92831937 Fair point. If there is only a bug-report - then you should use your telepathic abilities to find out the truth. check over here

Reports: · Posted 4 years ago Top wilson382 Posts: 39 This post has been reported. Check: what function expects to receive and what actually you give to it. 3. The "large values" are, for example, $00563F6A, $705D7800 and so on. Write/read of address ZZZ".

Delphi Access Violation At Address Read Of Address

URL можно просто не указывать.Ваше сообщение может быть помечено как спам спам-фильтром - не волнуйтесь, оно появится после проверки администратором. Следующее Предыдущее Главная страница Подписаться на: Комментарии к сообщению ( Atom Apr 27 '10 at 17:24 add a comment| 5 Answers 5 active oldest votes up vote 8 down vote accepted Read of address 00000008 means that you're reading a variable at Do we use a DLL? That is why it is extremely important to use "Range Check Errors" option while you develop and testing your application.

Though these errors usually detected at development stage, there can be cases, when wrong declaration will make it at production code. Hii ronniesonora i tried that a while ago with no luck. It can be form, component, object, array, record, string or simple integer. Bye, Andy If it helped please click accept...

FreeLibrary(Lib1); // some code unloads library ... Access Violation At Address In Module Delphi The "write" means that the exception occurred during writing, the "read" means that, well, the problem while reading (quite obvious, isn't it?). Read of address 00000008'. --------------------------- Break Continue Help --------------------------- –J... http://forum.devmedia.com.br/viewtopic.php?t=93038 Okay, the address XXX points to exact location of code, where exception was raised.

Sometimes there can be a situation, where your application trying to get access to certain memory location, which wasn't allocated or was already released - due to bugs in your code. Not the answer you're looking for? Digital Hardness of Integers How should I respond to absurd observations from customers during software product demos? Delphi1 StringGrid1.Cells[0][0] := Edit1.Text; @GSUR 3 / 3 / 2 : 27.05.2010 : 60 20.09.2010, 11:31 [] Project Project1.exe raised exception class EAccessViolation with message 'Access violation at

Access Violation At Address In Module Delphi

But on the second tab - you can see the status of CPU's registers, (part of) the stack and (part of) the memory at the moment of exception raising. I won't discuss the using of debugger here, rather I want to discuss other approaches. Delphi Access Violation At Address Read Of Address Find all posts by helenchu #4 07-09-2002, 12:43 PM andyho Senior Member Join Date: Jul 2001 Posts: 1,446 RE: EAccessviolation ?? How To Fix Access Violation At Address That means, that we only need to check write or read parts in the problem source line.

We already talked about such situations before. http://3ecommunications.net/access-violation/access-violation-at-address-read-of-address.html for X := 1 to Length(List) do // wrong! end; It is very treacherous situation, isn't it? FreeLibrary(Lib1); // ещё какой-то код выгрузил библиотеку ...

The next useful piece of information is "write" or "read" word. This is the same address, which is used by Delphi's debugger and EurekaLog to point you to your line of code. Proc; // хотя Proc <> nil, код, на который она указывает, // больше не загружен - здесь будет AV.Ситуация очень сильно напоминает следующий пункт и бороться с нею нужно такими же http://3ecommunications.net/access-violation/access-violation-at-address-in-module-read-of-address-00000000.html that was the problem i Uninstall it and the message passed away Reports: · Posted 4 years ago Top raphoenix Posts: 14920 This post has been reported.

Read of address 00000000'. The crazy thing is that I do the exact same thing in a dozen other places in units all over the program without problems. Where is the barding trick?

The one part of the problem is that when you destroy an object, its variable is not cleared automatically - it continues to point at invalid memory location.

Similar 41792 / 34177 / 6122 : 12.04.2006 : 57,940 20.09.2010, 06:06 Project Project1.exe raised exception class EAccessViolation with message 'Access violation at address 007B90DA in module 'Project1.exe'... Reinstall it for your account only (administrator). You can also double-click on line to go to a particular location. And to make it a local variable do like this: procedure TForm1.Button1Click(Sender:TObject); var form: TForm2; begin form2:=NIL; try form2:=TForm2.Create(NIL); { Fill form2 with any data necessary } form2.showmodal; if form2.modalresult=mrOK then

Depending on how we messed up with the array's index, we can get (**): a). And here's the reason for you: the variable, used in assignment, was = nil. in frmMap (mainform) should i have it like this: type TfrmMap = class(TForm) TfrmIdentify = class(TForm) var frmMap: TfrmMap; frmIdentify : TfrmIdentify again please excuse all of my stupid questions helenchu http://3ecommunications.net/access-violation/access-violation-at-address-in-module-read-of-address.html Site Map Installation & Registration Annual Agreements Single Incident Supported Versions Installation & Registration Product Support Single Incident Discussion Forums Documentation Developer Network Bugs & Suggestions Examples Audio Audio & Video

Wrong declaration of functions, which are imported from DLL. helenchu View Public Profile Send a private message to helenchu Visit helenchu's homepage! You should read this from top to bottom.