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authorDaniel Molkentin <daniel.molkentin@nokia.com>2009-05-20 13:53:07 (GMT)
committerDaniel Molkentin <daniel.molkentin@nokia.com>2009-05-20 14:02:42 (GMT)
commitafa4bcc90f79f3a68bed3f3429f2515fc8c7d23d (patch)
tree215bcc40689989271c63fede757205ff43f25e9b /doc
parent4a756726ee874ff2ce496e1b113707c65c39a76b (diff)
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Changing the addressbook tutorial so it doesn't leak.
Reviewed-By: Kavindra Palaraja <kavindra.palaraja@nokia.com>
Diffstat (limited to 'doc')
-rw-r--r--doc/src/tutorials/addressbook.qdoc9
1 files changed, 6 insertions, 3 deletions
diff --git a/doc/src/tutorials/addressbook.qdoc b/doc/src/tutorials/addressbook.qdoc
index 3b0d2bc..38200b0 100644
--- a/doc/src/tutorials/addressbook.qdoc
+++ b/doc/src/tutorials/addressbook.qdoc
@@ -242,12 +242,15 @@
\snippet tutorials/addressbook/part1/main.cpp main function
- We construct a new \c AddressBook widget on the heap using the \c new
- keyword and invoke its \l{QWidget::show()}{show()} function to display it.
+ We construct a new \c AddressBook widget on the stack and invoke
+ its \l{QWidget::show()}{show()} function to display it.
However, the widget will not be shown until the application's event loop
is started. We start the event loop by calling the application's
\l{QApplication::}{exec()} function; the result returned by this function
- is used as the return value from the \c main() function.
+ is used as the return value from the \c main() function. At this point,
+ it becomes apparent why we instanciated \c AddressBook on the stack: It
+ will now go out of scope. Therefore, \c AddressBook and all its child widgets
+ will be deleted, thus preventing memory leaks.
*/
/*!