在QT中启用触摸屏时出错

Question

我想在QT中启用触摸屏，所以我给了：

(SELECT min(submissiondateandtime) FROM price_submissions)

但它显示以下错误：

  

错误：没有匹配函数来调用＆＃39; QPushButton :: setAttribute（bool）＆＃39;            UI-＆GT; pushButton-＆GT;的setAttribute（（QT :: WA_AcceptTouchEvents，真））;                                                                    ^

Answer 1

删除多余的括号：

ui->pushButton->setAttribute(Qt::WA_AcceptTouchEvents,true);

VS

ui->pushButton->setAttribute((Qt::WA_AcceptTouchEvents,true));