How to allow a Dialog to be resized by the user? is a QT FAQ that one is confronted with when one uses QDialog: it cannot be resized and has no minimize or maximize button in its window title bar. How the steps below to solve this.

Below is the default QDialog constructor code:


Dialog::Dialog(QWidget *parent) :

    QDialog(parent),

    ui(new Ui::Dialog)

{

    ui->setupUi(this);

}

Change this code to the code below:


Dialog::Dialog(QWidget *parent) :

    QDialog(parent,Qt::Window),

    ui(new Ui::Dialog)

{

    ui->setupUi(this);

}

Done!

(C++) How to allow a Dialog to be resized by the user?