Abort QDialog in the constructor

[Tino]

Hi,
In a QDialog constructor I do that:

try {
        QLabel *lbls = new QLabel[numLbls]; //numLbls is passed as parameter
} catch(std::bad_alloc e) {
        // How I can abort this QDialog and avoid to be show?
}

try {
        QLabel *lbls = new QLabel[numLbls]; //numLbls is passed as parameter
} catch(std::bad_alloc e) {
        // How I can abort this QDialog and avoid to be show?
}

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How I can abort this QDialog and avoid to be show?