在插槽中传递多个参数[重复]

Question

我试图在 Slot 中发送两个参数，但出现以下错误。

'layoutProperty' 不能被隐式捕获，因为没有指定默认捕获模式

'layoutProperty' 是一个 QVBoxLayout。

void Container::CreatePositionAnimationUI(QHBoxLayout *layout1 , 
  QHBoxLayout *layout2 , QHBoxLayout *layout3 , QVBoxLayout 
 *layoutProperty )
   {
     QPushButton *pushButtonKey1 = new QPushButton;
     QPushButton *pushButtonKey2 = new QPushButton;
     QPushButton *pushButtonKey3 = new QPushButton;
     layout1->addWidget(pushButtonKey1);
     layout2->addWidget(pushButtonKey2);
     layout3->addWidget(pushButtonKey3);    

      QObject::connect(pushButtonKey1, &QPushButton::clicked , this, 
      [this] {SetPositionKeyGUIParameters(1 ,layoutProperty); });  // Get error on this line

   }

Answer 1

试试这个

QObject::connect(pushButtonKey1, &QPushButton::clicked , this, [&] 
{SetPositionKeyGUIParameters(1 , layoutProperty); });