一、函数原型
inline QMetaObject::Connection QObject::connect(const QObject *asender, const char *asignal, const char *amember, Qt::ConnectionType atype)
二、应用
//直接调用 lambda,信号必须用指针的形式写
connect(act, &QAction::triggered, [=](){
if (itemId.isEmpty()) {
App::showMessageBoxError(tr("错误"), tr("请先设置单位信息,再设置席位!"));
return;
}
DialogSeats *dialogSeats = new DialogSeats(itemId, this);
int result = dialogSeats->exec();
if (result == QDialog::Accepted) {
refreshTree();
}
delete dialogSeats;
});
menu->addAction(act);
menu->exec(this->cursor().pos());
}
备注:直接调用 lambda,信号必须用指针的形式写!!!