Just launch QMessageBox and then continue with following code?

[hakermania]

Hello.

This is the code:

QMessageBox msgBox;
    msgBox.setText("Please wait to connect to the server.");
    msgBox.setWindowTitle("Checking for update.");
    msgBox.exec();

QMessageBox msgBox;
    msgBox.setText("Please wait to connect to the server.");
    msgBox.setWindowTitle("Checking for update.");
    msgBox.exec();

To copy to clipboard, switch view to plain text mode 

This executes the msgBox and waits for the user to click OK or [X] to the messagebox dialog. What I need is, after the .exec the program to continue with the following code (for instance to start checking for the update) and perform the check:

if(msgBox.isVisible())
            msgBox.close();

if(msgBox.isVisible())
            msgBox.close();

To copy to clipboard, switch view to plain text mode 

before displaying another message letting the user know if there is or not update.

How can you just launch a MessageBox?
(for anybody familiar to bash scripting it is similar to the symbol '&' after calling an application)