Array not sent from signal and slot

[Lasith]

I want to send an array from one form(MainWindow) to another form(Dialog) upon a button click! Though the array seems to be sent it returns a wrong value! Following are my codes!

MainWindow.h

signals:void sendArray(int a[]);

MainWindow.cpp

void MainWindow::on_pushButton_clicked()
{
int a[] = {1,2,3};
Dialog dialog1;
connect(this,SIGNAL(sendArray(int[])),&dialog1,SLOT(receiveArray(int[])));
emit sendArray(a);

dialog1.exec();

}

Dialog.h
public slots:
void receiveArray(int a[]);

Dialog.cpp

void Dialog::receiveArray(int a[]){
int value=a[0];
QString value1=QString::number(value);
ui->label->setText(value1);
}

When the program is run(no compile errors occur) and the button is clicked though 1 (0th index of the array) should printed on the label in Dialog form a wrong value 8441124 is printed. How can I correct this?

[Lasith]

I found the solution myself! Use QList<int> instead of normal arrays :)

[mrjj]

@Lasith
Hi
old type c array can also work.
Its just a matter of what is registered already.
You can register your own types.

http://doc.qt.io/qt-5/qmetatype.html#Q_DECLARE_METATYPE