qt messagebox
/** * int output = QMessageBox::icon(this, tr("Title"), tr("content"), * QMessageBox::button, QMessageBox::defaultButton); */ //for example : int ret = QMessageBox::warning(this, tr("My Application"), tr("The document has been modified.\n" "Do you want to save your changes?"), QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Save);