2 replies to this topic

[notes]

Hi,

I have problem with Qt Dialog constructor.
While creating a window I want to pass some extra variables but I can't simply add them to constructor...

This is automaticly generated code by qt creator.

c'tor in dialog.h

public:


     explicit Dialog(QWidget *parent=0);

    ~Dialog();

c'tor in dialog.cpp

Dialog::Dialog(QWidget *parent) :

    QDialog(parent),

    ui(new Ui::Dialog)

{

    ui->setupUi(this);

///code

}

 

how window is created in main :

Dialog w;

And this is constructor in QDialog documentation :

QDialog ( QWidget * parent = 0, Qt::WindowFlags f = 0 ) 

My question is, How i can pass extra arguments while creating new object. I tried :

explicit Dialog(QWidget *parent=0,int a, int b);

I also tried to create new ctor by overloading and then call (from initialization list) for this one.

I simply need to pass this to know how many columns and rows user wants to create.

Appreciate any help,
Notes.

[WingedPanther]

You could do a couple of things:
1) inherit your form from the QDialog and overload the constructor for extra parameters
2) create an initialize method to do the additional work you need done.

[kernelcoder]

You made a wrong in declaration of your 'Dialog' class. The default arguments will be put after the non-default arguments. Below is the correct code.

Class declaration/definition.

class Dialog : public QDialog
{
    Q_OBJECT
public:
      explicit Dialog(int arg1, int arg2, QWidget *parent = 0)
            :QDialog(parent)
      {
      }
};