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Qt C++ MessageBox



  • Hello, I am just starting off as a GUI Developer for C++. I am experienced with Console Programming. I was looking for a SDK with a simple and organized environment and I found the Qt SDK :) The interfaces are so customizable and I love it! I have one question though. How can I make a MessageBox() appear? Can someone give me an example of a MessageBox() function that works with the Qt SDK. Console & GUI are different.

    The Console version of MessageBox() would work like this :

    @
    MessageBox(NULL, "Hello World!", "Hi!", MB_OK | MB_ICONHAND);
    @

    What would the Qt version of MessageBox() look like? Thanks very much guys :)





  • You can use static member functions of QMessagebox like warning, error, information. Syntax of all of them are same

    StandardButton information ( QWidget * parent, const QString & title, const QString & text, StandardButtons buttons = Ok, StandardButton defaultButton = NoButton )

    And it is being called as follow:

    QMessageBox::information(NULL, "Hello World!", "Hi!");

    You can also use the 'exec()' member function of QMessageBox.



  • Please note that QMessageBox is in QtGui, so if you use that you will need to link against that. You also need a QApplication instead of a QCoreApplication.

    I am just mentioning that since you keapt referring to console applications which usually do not need to link against QtGui.



  • Hi PPl
    Here is the sample code for message Box:
    @ QMessageBox msgBox;
    msgBox.setText("The document has been modified.");
    msgBox.setInformativeText("Do you want to save your changes?");
    msgBox.setStandardButtons(QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
    msgBox.setDefaultButton(QMessageBox::Save);
    int ret = msgBox.exec();@
    "For More...":http://harmattan-dev.nokia.com/docs/library/html/qt4/qmessagebox.html#Icon-enum


  • Moderators

    Thank you for your contribution, Bittoo. However, check the date -- the question was already answered more than 2 years ago. It's best not to post in old threads. :)

    Also, I recommend using the official Qt Project documentation for most purposes: http://qt-project.org/doc/qt-5.0/qtwidgets/qmessagebox.html -- Nokia's documentation is outdated now.



  • Ok JKSH :)



  • thanks



  • why was the post not marked as SOLVED then


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