×
Namespaces

Variants
Actions
Revision as of 13:53, 13 June 2012 by hamishwillee (Talk | contribs)

How to delete a QObject derived class from within one of its own methods

From Nokia Developer Wiki
Jump to: navigation, search
Article Metadata
Compatibility
Platform(s): All
Symbian
Article
Keywords: Qt, deleteLater
Created: gnuton (20 Jun 2010)
Last edited: hamishwillee (13 Jun 2012)

In order to delete a QObject-derived class from one of its own methods, developers have to use

deleteLater();

Since this is a public slot, it can be connected to a signal or it can be just called in any method of the class.

There are no problem if a signal or a method calls more than one time QObject::deleteLater()

Beginner developers sometimes use

delete this;

and this is dangerous since the Qt event loop could invoke a method of the deleted class. Hence, the application or library will crash.

  • Related Qt Documentation link

Qt 4.6 deleteLater()

111 page views in the last 30 days.
×