【Qt】用主窗口SLOT接收子窗口SIGNAL

直接看代码吧。

子窗口头文件：

signals:
	void sendSignal_lineEdit_returnPressed(QString, QString, QString, QString, QString, QString);

private:
	Ui::AdjustPCClass ui;

private slots:
	void on_lineEdit_returnPressed();

子窗口cpp：

void AdjustPC::on_lineEdit_returnPressed()
{
	emit sendSignal_lineEdit_returnPressed(this->ui.lineEdit_x->text(),
										    this->ui.lineEdit_y->text(),
										    this->ui.lineEdit_z->text(),
											this->ui.lineEdit_roll->text(),
											this->ui.lineEdit_pitch->text(),
											this->ui.lineEdit_yaw->text());
}

主窗口头文件：

private slots:
    void receiveSignal_lineEdit_returnPressed(QString, QString, QString, QString, QString, QString);

private:
// Sub window Variables
	AdjustPC* SubWidget_AdjustPC = new AdjustPC;

主窗口cpp：

// Sub window slots  关键地方，connect函数放在构造函数或者头文件中！！！
	connect(SubWidget_AdjustPC, SIGNAL(sendSignal_lineEdit_returnPressed(QString, QString, QString, QString, QString, QString)), this, SLOT(receiveSignal_lineEdit_returnPressed(QString, QString, QString, QString, QString, QString)));

void Lidar_test::on_PushButton_AdjustPC_Clicked()
{    // Show sub window
	SubWidget_AdjustPC->setWindowTitle("Adjust PointCloud Console");
	
	SubWidget_AdjustPC->show();
}

void Lidar_test::receiveSignal_lineEdit_returnPressed(QString lineEdit_x_text, QString lineEdit_y_text, QString lineEdit_z_text, QString lineEdit_roll_text, QString lineEdit_pitch_text, QString lineEdit_yaw_text)
{
    // Main window slot func 
}