Absolute beginner in need of help

[qtUser500]

Not a problem, that's what these forums are for.

To call the second window you need to first instantiate the calling window and then execute it. It might look like this:

void MainWindow::openNewWindow()
{
     EditWindow myEditWindow(); // call the constructor of the second window
     myEditWindow.exec(); // This executes the window, and it will pop up
 
    if (myEditWindow.result == QDialog::Accepted)
    {
          // Write your code here to retrieve what ever you want from the second window.
          // In the Second window you will need to create a slot for accept(), code below
    }
 
   //You can then close or hide the second window
   myEditWindow.close();
 
}

void MainWindow::openNewWindow()
{
     EditWindow myEditWindow(); // call the constructor of the second window
     myEditWindow.exec(); // This executes the window, and it will pop up

    if (myEditWindow.result == QDialog::Accepted)
    {
          // Write your code here to retrieve what ever you want from the second window.
          // In the Second window you will need to create a slot for accept(), code below
    }
 
   //You can then close or hide the second window
   myEditWindow.close();

}

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In the Second window write the slot for accept() and link it to the 'clicked' signal (This depends on the buttons you have on your ui to close the second window Eg OK | Cancel or is it more buttons Eg: Save | Save All | Cancel).
Using the accept() helps to link it to the appropriate button

EditWindow.h file

slot
accept(); // For OK or Save
reject(); // For cancel

slot
accept(); // For OK or Save
reject(); // For cancel

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EditWindow.cpp file

connect (ui.OKButton, SIGNAL(clicked()), this, SLOT(accept()));
 
void EditWindow::accept()
{    
     QDialog::accept();
     //And whatever other code you might want to put here Eg validate before closing the window etc
 
}

connect (ui.OKButton, SIGNAL(clicked()), this, SLOT(accept()));

void EditWindow::accept()
{    
     QDialog::accept();
     //And whatever other code you might want to put here Eg validate before closing the window etc

}

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Read the documents (Qt Assistant) for QDialog() and you will see the other slots there Eg open(), exec() etc

Good luck!

[imperator]

That was just what I've been looking for! Thank you very much!

I will read the documentation for QDialog as I'm not completely sure about what's actually happening here.

Thanks again

Regards,

André

[qtUser500]

U r welcome
A good place to start is reading the documentation.
Search for 'An Overview of Qt's Examples' in QT Assistant and U will get an idea of how things work.

[TeresaML]

I'm doing something similar but I'm lost in some aspects... Could you put the code of the EditWindow Class. Thanks!

[imperator]

Here goes:

EditWindow::EditWindow(QWidget* parent): QDialog(parent){
 
    // Layout as you prefer it
 
    connect(sendButton, SIGNAL(clicked()), this, SLOT(accept()));
 
}
 
void EditWindow::accept(){
	QDialog::accept();
}
 
QString EditWindow::getText(){
	return textEdit->text();
}

EditWindow::EditWindow(QWidget* parent): QDialog(parent){

    // Layout as you prefer it

    connect(sendButton, SIGNAL(clicked()), this, SLOT(accept()));

}

void EditWindow::accept(){
	QDialog::accept();
}

QString EditWindow::getText(){
	return textEdit->text();
}

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[TeresaML]

I've tried to do this but I have an error with the code line "myEditWindow.exec();":
Error 1 error C2228: the left operate of '.exec' must have class/struct/union.

Any idea please?

[imperator]

I'm a newbie in Qt, so if anyone more qualified than me could answer, that would be nice.

But the error message say that the left operate of myEditWindow.exec() must be of a class, etc. How did you declare myEditWindow?

I did it this way from my MainWindow class:

EditWindow ew(this);
ew.exec();

EditWindow ew(this);
ew.exec();

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[TeresaML]

Thank you very much! The mistake was here. I forgot to put "this". I'm a newbie in Qt too, and I'm plenty of doubts and troubles...

Now, I will try to put some buttons and other widgets in the second window. I hope that I don't disturb so much with my questions. Thanks a lot!