Qt，没有这样的槽 [英] Qt, no such slot

问题描述

为什么我得到这个

Object::connect: No such slot Ide::on_action_Exit_triggered(index)
Object::connect:  (sender name:   'actionClose_Project')
Object::connect:  (receiver name: 'Ide')

当我尝试这样：

connect(this->ui->actionClose_Project, SIGNAL(triggered()), this, SLOT(on_action_Exit_triggered(index)));

void Ide::on_action_Exit_triggered(int index)
{
  qDebug()<<"test\n";
}

谢谢。

推荐答案

请插入函数原型：

connect(this->ui->actionClose_Project, SIGNAL(triggered()), this, SLOT(on_action_Exit_triggered(int)));

此格式不适用于插槽。信号和插槽应在参数中相同。

This format you use isn't common to use slot. the signal and slot should be same in parameters.

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