Qt isn't recognizing object

[skipper]

Noob question, I know, I'm still learning etc.

I've declared some objects in my mainwindow constructor but when I try to work with them in a slot they doesn't work

ui(new Ui::MainWindow)
{
ui->setupUi(this);
ledek led[3][9];
}

ui(new Ui::MainWindow)
{
ui->setupUi(this);
ledek led[3][9];
}

To copy to clipboard, switch view to plain text mode 

void MainWindow::on_checkBox_1_stateChanged (int arg1)
{
for(asd=0;asd<3;asd++)
{
led[asd][1].szam=(arg1==0 ? 0:1)
}
}

void MainWindow::on_checkBox_1_stateChanged (int arg1)
{
for(asd=0;asd<3;asd++)
{
led[asd][1].szam=(arg1==0 ? 0:1)
}
}

To copy to clipboard, switch view to plain text mode 

Led was not declared in this scope.

[anda_skoa]

In line 4 you are defining a local stack variable
Stack variables "end" when the scope they are define in ends, in this case when the contructor ends.

If you need variables to exist during the object life time, you need to use member variables.

Cheers,
_

[skipper]

ledek is the class and led[3][9] is an array of objects, so how do I make it a member variable? I'm a bit confused, could you give me an example?

[jefftee]

Same way you may any variable a member variable. Declare it in the class definition (header file), typically as a private variable. Initialize using a constructor initializer list or constructor, etc.