QString title = tr("检测结果");
QPrinter printer(QPrinter::HighResolution);
QPrintDialog printDialog(&printer, this);
if (printDialog.exec()==QDialog::Accepted)
{
QPainter painter(&printer);
qDebug()<<"hello world!"<<endl;
painter.drawText(200,400,title);
qDebug()<<"hello world2222"<<endl;
}
调试输出正常 输出信息; painter.drawText(200,400,title) 却始终无法在纸上打印出来:检测结果