Memory error on closing designer

rbuser

Hi,
probably we have found a little memory error:

On closing the designer
destructor TppReportListView.Destroy is called by destructor
TppCommunicator.Destroy being called by destructor
TppDesignToolManager.Destroy;

Later destructor TppDataExplorer.Destroy is beeing called.
Unfortunately the previous method contains two calls

- ListView.OnChange := nil; (1666)
- ListView.OnChanging := nil;(1667)

where Listview already has been destroyed but is not nil.

This caused our memorguard (https://sourceforge.net/projects/fastmm/)
to create a valid exception:"FastMM has detected an error during a
GetMem operation. FastMM detected that a block has been modified after
being freed. "

Any ideas what to do?

Tia Carsten

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Hint: We altered the sources!Hint: We altered the sources!

nardmoseley

Hi Carsten,

Thanks for reporting this. I created a patch for RB 18.01 to resolve this
issue. Registered 18.01 customers can email support@ and request the patch

(That code has been in place for many years, the memory error is not likely
to cause a run-time error in most environments. But a diagnostic tool like
FastMM will correctly report it).



Best regards,

-
Nard Moseley
Digital Metaphors
www.digital-metaphors.com

rbuser

Nard Moseley (Digital Metaphors) machte diesen Vorschlag :

Works as expected, great job, incredible fast response time !!!!!

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Hint: We altered the sources!Hint: We altered the sources!