get Parent Pointer

[raphaelf]

Hello everybody,

QT:4.1.1

How could i get my parent Pointer?

I tryed this:
login.cpp

(MainWindow*)parent).insertTables();

(MainWindow*)parent).insertTables();

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ERROR:

login.cpp:63: error: argument of type `QObject*(QObject::)() const' does not mat
ch `MainWindow*'

login.cpp:63: error: argument of type `QObject*(QObject::)() const' does not mat
ch `MainWindow*'

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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();
 
}

void MainWindow::openLoginDialog()
{
	LoginDialog l(this);
    l.exec();

}

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Have somebody a idea how to get the Parent Pointer?

[jpn]

Try:

((MainWindow*)parent())->insertTables();

((MainWindow*)parent())->insertTables();

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and how ugly is that...

[raphaelf]

Hi JPN!
Are this forum a F1 Competition?
I get a solution in just 2 minutes?

I LOVE THIS FORUM

Thank you!

[zlatko]

Are this forum a F1 Competition?

yes man championatsip is started

[wysota]

Try:

((MainWindow*)parent())->insertTables();

((MainWindow*)parent())->insertTables();

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and how ugly is that...

A less ugly one would be:

MainWindow *p = qobject_cast<MainWindow*>(parent());
if(p){
 // ...
}

MainWindow *p = qobject_cast<MainWindow*>(parent());
if(p){
 // ...
}

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or even

MainWindow *p = dynamic_cast<MainWindow*>(parent());
if(p){
  // ...
}

MainWindow *p = dynamic_cast<MainWindow*>(parent());
if(p){
  // ...
}

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[jpn]

Or using signal/slot mechanism so that dialog wouldn't need to even know about some "MainWindow".. Who knows

[raphaelf]

Hi ZLAKO, Hi wysota...

Thanks for repiles

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

[raphaelf]

JPN: Have you a finish example for what you mean?

[zlatko]

Hi ZLAKO, Hi wysota...

Thanks for repiles

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

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