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Random problems with destructors in GUI classes [message #49421]

Thu, 08 February 2018 10:11

koldo is currently offline

koldo
Messages: 3432
Registered: August 2008

Senior Veteran

Hello all

I have random problems with GUI controls. Sometimes with DEBUG or RELEASE, when a control is destructed an EXCEPTION_ACCESS_VIOLATION exception raises. This happens in ScatterCtrl.
For example, function ScatterCtrl::DoShowEditDlg() calls PropertiesDlg(*this, itab).Run(true) opening a dialog.
Sometimes, when this dialog is closed, this errror raises. The function call stack represets basically destructors:

index.php?t=getfile&id=5501&private=0

index.php?t=getfile&id=5501&private=0

It is like there is a problem in the destructors order, so that in this case, when ColorPusher destructor is called, parent controls has been already destructed.

I have seen that many or maybe all GUI controls have virtual destructors. Maybe it has no sense but, should GUI user controls destructors have to be also virtual?

Attachment: Sin título.png
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Best regards
Iñaki

[Updated on: Thu, 08 February 2018 10:14]

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[Message index]

		Random problems with destructors in GUI classes By: koldo on Thu, 08 February 2018 10:11
		Re: Random problems with destructors in GUI classes By: dolik.rce on Thu, 08 February 2018 11:12
		Re: Random problems with destructors in GUI classes By: koldo on Thu, 08 February 2018 11:25
		Re: Random problems with destructors in GUI classes By: dolik.rce on Thu, 08 February 2018 12:40
		Re: Random problems with destructors in GUI classes By: mirek on Fri, 09 February 2018 13:36
		Re: Random problems with destructors in GUI classes By: koldo on Thu, 08 February 2018 13:02
		Re: Random problems with destructors in GUI classes By: mirek on Fri, 09 February 2018 13:48
		Re: Random problems with destructors in GUI classes By: koldo on Sat, 10 February 2018 23:53
		Re: Random problems with destructors in GUI classes By: mirek on Sun, 11 February 2018 08:25
		Re: Random problems with destructors in GUI classes By: mirek on Sun, 11 February 2018 08:33
		Re: Random problems with destructors in GUI classes By: koldo on Sun, 11 February 2018 09:27
		Re: Random problems with destructors in GUI classes By: koldo on Mon, 12 February 2018 22:24
		Re: Random problems with destructors in GUI classes By: mirek on Mon, 12 February 2018 23:06
		Re: Random problems with destructors in GUI classes By: koldo on Tue, 13 February 2018 10:53
		Re: Random problems with destructors in GUI classes By: mirek on Sat, 17 February 2018 12:43
		Re: Random problems with destructors in GUI classes By: koldo on Sun, 18 February 2018 10:06
		Re: Random problems with destructors in GUI classes By: mirek on Sat, 24 February 2018 10:28
		Re: Random problems with destructors in GUI classes By: mirek on Sat, 24 February 2018 12:40
		Re: Random problems with destructors in GUI classes By: koldo on Fri, 02 March 2018 15:00
		Re: Random problems with destructors in GUI classes By: mirek on Fri, 02 March 2018 15:07

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