QMessageBox: Controlling the width

[ChrisW67]

Hi All,

This is a complete noob question and I'm no doubt going to smack my forehead when I hear the answer.

I am creating a QMessageBox in various places to present errors and warnings. The boxes seem to have a mind of their own when it comes to sizing (width) and often wrap poorly or truncate the window title. I have tried using setMinimumWidth() but it does not seem to have any effect. Code looks like:

#include <QtGui>
#include <QDebug>
 
int main(int argc, char *argv[])
{
 
    QApplication app(argc, argv);
 
    QMessageBox msgBox1;
    msgBox1.setMinimumWidth(400);  // seemingly ignored, always same width box
    msgBox1.setWindowTitle("Width 400");
    msgBox1.setText("<strong>Warning</strong>");
    msgBox1.setInformativeText(
        "You have not entered hours against this event<br /> "
        "Do you wish to save the event anyway?");
    msgBox1.setStandardButtons(QMessageBox::Yes | QMessageBox::No);
    msgBox1.setDefaultButton(QMessageBox::No);
    msgBox1.setIcon(QMessageBox::Warning);
    msgBox1.show();
 
    QMessageBox msgBox2;
    msgBox2.setMinimumWidth(800);  // seemingly ignored, always same width box
    msgBox2.setWindowTitle("Width 800");
    msgBox2.setText("<strong>Warning</strong>");
    msgBox2.setInformativeText(
        "You have not entered hours against this event<br /> "
        "Do you wish to save the event anyway?");
    msgBox2.setStandardButtons(QMessageBox::Yes | QMessageBox::No);
    msgBox2.setDefaultButton(QMessageBox::No);
    msgBox2.setIcon(QMessageBox::Warning);
    msgBox2.exec();
 
    return app.exec();
}
 
// vi: sw=4 ts=4 et

#include <QtGui>
#include <QDebug>

int main(int argc, char *argv[])
{

    QApplication app(argc, argv);

    QMessageBox msgBox1;
    msgBox1.setMinimumWidth(400);  // seemingly ignored, always same width box
    msgBox1.setWindowTitle("Width 400");
    msgBox1.setText("<strong>Warning</strong>");
    msgBox1.setInformativeText(
        "You have not entered hours against this event<br /> "
        "Do you wish to save the event anyway?");
    msgBox1.setStandardButtons(QMessageBox::Yes | QMessageBox::No);
    msgBox1.setDefaultButton(QMessageBox::No);
    msgBox1.setIcon(QMessageBox::Warning);
    msgBox1.show();

    QMessageBox msgBox2;
    msgBox2.setMinimumWidth(800);  // seemingly ignored, always same width box
    msgBox2.setWindowTitle("Width 800");
    msgBox2.setText("<strong>Warning</strong>");
    msgBox2.setInformativeText(
        "You have not entered hours against this event<br /> "
        "Do you wish to save the event anyway?");
    msgBox2.setStandardButtons(QMessageBox::Yes | QMessageBox::No);
    msgBox2.setDefaultButton(QMessageBox::No);
    msgBox2.setIcon(QMessageBox::Warning);
    msgBox2.exec();

    return app.exec();
}

// vi: sw=4 ts=4 et

To copy to clipboard, switch view to plain text mode 

The result is attached. What is the obvious thing I'm missing?

Chris