QListWidget

[babygal]

I have few forms created in a project.
I declared an item-based list widget as below:

QListWidget *messageList;

in my first form's *.h file. I want
to use it in the other forms as well. How can I call messageList and its items in another form?
Definition of messageList in *.cpp:


QDockWidget *dock;
dock = new QDockWidget(tr("Message"), this);
messageList = new QListWidget(dock);
messageList->clear();
messageList->addItems(QStringList()
<< "Hello! ");
dock->setWidget(messageList);

[aamer4yu]

You will need the pointer to the listwidget..
make some get function which will return the list widget and can be called from other forms..

[babygal]

You will need the pointer to the listwidget..
make some get function which will return the list widget and can be called from other forms..





Any sample code?

[babygal]

Any help or examples.please.

[Urthas]

The following, added to your header file, would do what it sounds like you want:


public:
QListWidget * getListWidgetPointer() { return messageList; }


I don't say that this is a good idea though. It's better to define an API for your QListWidget rather than return a pointer to it, in my opinion.

[babygal]

can elaborate more?

S.O.S

[marcvanriet]

This should help you out more : http://en.wikipedia.org/wiki/Abstraction_%28computer_science%29

Your messagelist belongs to a class ( a dialog ). The class accesses this messagelist through a pointer or variable that is a member of this class.

Other objects or functions cannot access this messagelist. It would be a bad practice to let any object have access to all members of any other class. But if it is required for some good reason, you can write a member function to let other classes know what the memory location (pointer) of your messagelist is, so they can use it anyway.

This should suffice. If not, I suggest reading any book on C++.

Best regards,
Marc