View Full Version : get Parent Pointer
raphaelf
3rd March 2006, 11:42
Hello everybody,
QT:4.1.1
How could i get my parent Pointer?
I tryed this:
login.cpp
(MainWindow*)parent).insertTables();
ERROR:
login.cpp:63: error: argument of type `QObject*(QObject::)() const' does not mat
ch `MainWindow*'
I want to get the pointer to call a function of MainWindow. I open LoginDialog like this:
void MainWindow::openLoginDialog()
{
LoginDialog l(this);
l.exec();
}
Have somebody a idea how to get the Parent Pointer?
Try:
((MainWindow*)parent())->insertTables();
and how ugly is that... :)
raphaelf
3rd March 2006, 11:50
Hi JPN!
Are this forum a F1 Competition?
I get a solution in just 2 minutes?
I LOVE THIS FORUM :p
Thank you!
zlatko
3rd March 2006, 11:52
Are this forum a F1 Competition?
yes man championatsip is started :D
wysota
3rd March 2006, 11:53
Try:
((MainWindow*)parent())->insertTables();
and how ugly is that... :)
A less ugly one would be:
MainWindow *p = qobject_cast<MainWindow*>(parent());
if(p){
// ...
}
or even
MainWindow *p = dynamic_cast<MainWindow*>(parent());
if(p){
// ...
}
Or using signal/slot mechanism so that dialog wouldn't need to even know about some "MainWindow".. Who knows :)
raphaelf
3rd March 2006, 11:58
Hi ZLAKO, Hi wysota...
Thanks for repiles :p
Would be a idea to set a statistic on qcentre.org with the top 10 "fast for furious QT guys" :)
I cant live without qtcentre!
this forum are my gasoline :p
raphaelf
3rd March 2006, 12:07
JPN: Have you a finish example for what you mean?:rolleyes:
zlatko
3rd March 2006, 13:09
Hi ZLAKO, Hi wysota...
Thanks for repiles :p
Would be a idea to set a statistic on qcentre.org with the top 10 "fast for furious QT guys" :)
I cant live without qtcentre!
this forum are my gasoline :p
start new thread in Feedback section ;)
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