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Thread: cannot change main window title

  1. #1
    Join Date
    Feb 2011
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    Qt products
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    Unhappy cannot change main window title

    a very basic and simple question which is puzzling me

    i want to change the title of the main window in my qt application (the GUI has been designed by Qt Design so I have the ui. and setupui() stuff)

    Qt Code:
    1. MainWindow::MainWindow(QWidget *parent) :
    2. QMainWindow(parent)
    3. {
    4. QString windowTitle("some good stuf here");
    5. QMessageBox::information(this, progName, windowTitle );
    6.  
    7. //....
    8. this->setWindowTitle(windowTitle); // ???
    9.  
    10. ledGreen.load(":/bitmap/LED-Green-20.bmp");
    11. ledRed.load(":/bitmap/LED-Red-20.bmp");
    12. ledDark.load(":/bitmap/LED-Dark-20.bmp");
    13. ui.setupUi(this);
    14.  
    15. //....
    16. }
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    can't understand what is wrong here ...

    thanks much

  2. #2
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    Default Re: cannot change main window title

    Qt Code:
    1. MainWindow::MainWindow(QWidget *parent) :
    2. QMainWindow(parent)
    3. {
    4. QString windowTitle("some good stuf here");
    5. QMessageBox::information(this, progName, windowTitle );
    6.  
    7. //....
    8. //this->setWindowTitle(windowTitle); // ??? //<<<<<<<<<<<<<<<<<<<<<< Move it, after setupUi();
    9.  
    10. ledGreen.load(":/bitmap/LED-Green-20.bmp");
    11. ledRed.load(":/bitmap/LED-Red-20.bmp");
    12. ledDark.load(":/bitmap/LED-Dark-20.bmp");
    13. ui.setupUi(this);
    14.  
    15. this->setWindowTitle(windowTitle); //<<<<<<<<<<<<<<<<<<<<<<Here
    16.  
    17. //....
    18. }
    To copy to clipboard, switch view to plain text mode 
    When you know how to do it then you may do it wrong.
    When you don't know how to do it then it is not that you may do it wrong but you may not do it right.

  3. The following user says thank you to Santosh Reddy for this useful post:

    marco.stanzani (3rd January 2013)

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