Re: [DUG]: Looking for memory leaks

[Neven MacEwan]

Leo   I'm not quite sure what you mean by 'I guess that Delphi doesnt properly dispose of object pointers that have been 'dispose'd though'   You should also add MyStringGrid.Objects[Col,Row] := nil; after the free Regards   ----- Original Message ----- From: Leo Ramakers To: Multiple recipients of list delphi Sent: Monday, 22 November 1999 11:31 Subject: Re: [DUG]: Looking for memory leaks Neven MacEwan wrote: Why all the pointers! thanks for the 'pointer'. I had taken the example in the help for tList.items literally and propogated the pointer use through my work, but of course they used a record rather than an object and were forced to use new etc. I have simplified my code considerably after your suggestion, thanks. (I guess that Delphi doesnt properly dispose of object pointers that have been 'dispose'd though). Regards Leo    var myObject : TMyObject; begin   MyObject := tMyObject.create;   MyStringGrid.Objects[Col,Row] := MyObject; and  TMyObject(MyStringGrid.Objects[Col,Row]).free; does the same thing RegardsNeven ----- Original Message ----- From:Leo Ramakers To: Multiple recipients of list delphi Sent: Friday, 19 November 1999 12:46 Subject: Re: [DUG]: Looking for memory leaks  Progress report. I tried Memproof, as someone in DUG suggested, but it found very little for me. So I tried Turbopowers memory sleuth on Terry's recommendation. They have a time limited eval version. Boy its good, I was routinely leaving undisposed memory all over the place, mainly because I was dumb and lazy, but Memory Sleuth at least allowed me to see it. I found one really curious thing though - I was creating an object which I had defined thus; pMyObject = ^tMyObject; tMyObject = class ... end; I created objects and saved them in a StringGrid; var myObject : pMyObject; begin   new(myObject);   MyObject^ := tMyObject.create;   MyObject^.Methodcalls   MyStringGrid.Objects[Col,Row] := MyObject; then I disposed of the object in the end;   tMyObject(MyStringGrid.Objects[Col,Row]).free;   dispose(MyStringGrid.Objects[Col,Row]) TurboSleuth reported an undisposed memory from the new line. When I recoded to use a tMyObject instead of a pMyObject (and dropped the associated new and dispose calls) the leak disappeared. I am more clever now, though no wiser. Any insights or explanations? Leo Turbopower have 'Memory Sleuth' which I've found to be very good. Some $ involved though. Terry >hi all I am trying to find sources of memory leaks in my code. Can anyone offer advice, or perhaps recommend a free or cheap tool to use. Leo Ramakers < ---------------------------------------------------------------------------     New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED]                   Website: http://www.delphi.org.nz --------------------------------------------------------------------------- New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED] Website: http://www.delphi.org.nz --------------------------------------------------------------------------- New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED] Website: http://www.delphi.org.nz