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Invalid Pointer Operation Delphi

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When stopping on a breakpoint this can cause Delphi's debugger to attempt to display the value via a function call that accesses an uninitialised Pointer or variable. The actual variable that causes the AV my not even be on your watch list. My program compiles and runs successfully, but during debugging only it pops up a message box saying "Invalid Pointer Operation" when shutting the program down. How to avoid const cast for map access? http://magsuite.com/invalid-pointer/invalid-pointer-operation.html

Wife sent to collections for ticket she paid ten years ago Is there such thing as a "Black Box" that decrypts internet traffic? I never knew that! Your program freed something that was never allocated in the first place. How to use 1.

Invalid Pointer Operation Fix

How do you keep clean on long, pre-industrial journeys? If you need a PChar, for instance to use with interop, make one with PChar(str) where str is of type string. One of these three things is the cause: Your program freed something that had already been freed once before. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

Why do people use braces around the control sequence in \newcommand? Privacy Policy Site Map Support Terms of Use Delphi Pages Forums > Delphi Forum > General Invalid Pointer operation User Name Remember Me? The only I got working was an EAccessViolation by calling delete pointer variables that I filled with int values via reinterpret_cast. –Wolf Jan 13 '15 at 13:43 | show 2 more Invalid Pointer Operation Windows 10 than you can perform your function by type this code The Code   (CODE) The Im… Delphi Creating an auto free string list Article by: ewangoya Creating an auto free TStringList

LrAn. Invalid Pointer Operation Windows 7 I will enable DCU and see what happens. –ThN Apr 11 '12 at 20:16 @DavidHeffernan, after the break with dcu enabled, debugger stopped in System.pas file. How should a coloured dropdown be styled using Google Material? How to read the following Itinerary What do you call someone who acts "cool-headed"?

Should immortal women have periods? Invalid Pointer Operation Game Maker If you can post here all the code or send to me the whole project, I might help better. Connect with top rated Experts 15 Experts available now in Live! Why do people use braces around the control sequence in \newcommand?

Invalid Pointer Operation Windows 7

cat gives different error when opening non-existing file Program template for printing *any* string How do I catch a Ditto? Linked -2 EInvalidPointer message with 'Invalid Pointer Operation' Related 3Invalid Pointer Operation2Invalid pointer operation in TMonitor.Destroy1Invalid pointer exception when closing app after upgrade from Delphi 2006 to Delphi XE2How to identify Invalid Pointer Operation Fix How do I catch a Ditto? Invalid Pointer Operation In C++ You can copy this code in your Unit as function 2.

Hiccup a string How can I make a check twice as likely to fail? his comment is here Is Cauchy induction used for proofs other than for AM–GM? In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter Linked -2 how to fix: Failed pointer operation delphi data All a bit moot though since PChar(str) is better. –David Heffernan Jan 2 '14 at 10:24 Thank u very much –world peace Jan 2 '14 at 10:25 | show Invalid Pointer Operation Sql

Not the answer you're looking for? Freeing someone else's data is one cause of it, not the only cause of it. –Loren Pechtel Jun 30 '09 at 23:17 Following a bad pointer generally gets you asked 4 years ago viewed 15767 times active 2 months ago Get the weekly newsletter! this contact form That's covered by the second bullet point.

What do you call someone who acts "cool-headed"? What Does Invalid Pointer Operation Mean Browse other questions tagged delphi delphi-xe or ask your own question. using the CreateThread API function, or writing an Entera server)?

ptr := AllocMem(40); try StrCpy(ptr, 'OneNationUnderGod'); // do stuff with ptr finally FreeMem(ptr); end; Clearly in real code you would find a better and more robust way to specify buffer lengths

Join them; it only takes a minute: Sign up Invalid Pointer Operation up vote 3 down vote favorite 2 I have a form that contains a TOpenDialog component (OpenDialog1) and a EInvalidPointer is raised internally by the memory manager. Check the rest of your program for other ways that variable is used. Einvalidpointer Log On | English My default language Arabic Brazilian Portuguese Bulgarian Croatian Czech English Finnish French German Hebrew Hellenic (Greek) Hungarian Italian Japanese Korean Norwegian Polish Portuguese Russian Simplified Chinese Spanish

Why would a language be undubbable by universal (machine) translator? The time now is 10:49 PM. Use FullDebugMode and you'll find the source of the problem easily. http://magsuite.com/invalid-pointer/invalid-pointer-operation-error.html There are three ways that might happen: Freeing a pointer or object that has already been freed.

Kiel "esperantigi" Stack Exchange? / How to "esperantize" Stack Exchange? delphi delphi-xe share|improve this question edited Feb 17 '13 at 20:10 asked Feb 17 '13 at 10:57 RBA 6,86574592 6 How do you create the datamodules? C++) and Dlls can not be used by an another application ...