QT中PushButton绑定到槽时不能触发槽函数

[牛奶味的榴莲]

小弟最近从VC转行QT处于学习阶段，但是一个小小的槽就把我折腾死了，希望各位大大指点一下。

头文件

#ifndef RBG_LOG_TOOLS_H
#define RBG_LOG_TOOLS_H

#include <QtWidgets/QMainWindow>
#include "ui_rbg_log_tools.h"

#include <QPushButton>
#include <QMouseEvent>
#include <QLineEdit>
#include <QLabel>
class RBG_LOG_TOOLS : public QMainWindow
{
	Q_OBJECT

public:
	RBG_LOG_TOOLS(QWidget *parent = 0);
	~RBG_LOG_TOOLS();

private:
	Ui::RBG_LOG_TOOLSClass ui;

public:

	QPushButton *pButtonStart;
	QPushButton *pButtonStop;

	QLabel		*plabel;

public:

	void mouseReleaseEvent(QMouseEvent *e);


    void on_button_start(  );

};

#endif // RBG_LOG_TOOLS_H

CPP文件

#include "rbg_log_tools.h"

#include <QTextCodec>
#include <QMessageBox>
RBG_LOG_TOOLS::RBG_LOG_TOOLS(QWidget *parent)
	: QMainWindow(parent)
{
	ui.setupUi(this);

   QTextCodec::setCodecForLocale(QTextCodec::codecForName("GBK")); // 改为GBK编码
   QString strMessage = QString::fromLocal8Bit("RBG日志下载工具");

	this->setWindowTitle(strMessage);
	this->setMaximumSize(400, 300);
	this->setMinimumSize(400, 300);

	int iWindWidth = this->width( );
	int iwindHeigh  = this->height( );

	int iButtonSatrtX;
	int iButtonSatrtY;

	int iButtonStopX;
	int iButtonStopY;

	pButtonStart	= new QPushButton(QString::fromLocal8Bit("开始"), this);
    pButtonStart->move( iWindWidth/4, (iwindHeigh*8)/10);
	pButtonStart->show( );


	pButtonStop	= new QPushButton( QString::fromLocal8Bit("关闭"), this);
	pButtonStop->move( iWindWidth/2, (iwindHeigh*8)/10);


	plabel = new QLabel( QString::fromLocal8Bit("我是 QLabel"), this);
	plabel->setFrameStyle(QFrame::Panel | QFrame::Sunken);  
	plabel->setAlignment(Qt::AlignBottom | Qt::AlignVCenter);  
	plabel->setGeometry(QRect(iWindWidth/6, iwindHeigh/10, (iWindWidth*4)/6, iWindWidth/10));

       //两次的绑定都不生效
      connect( plabel, SIGNAL(clicked()), this, SLOT(on_button_start()));
	connect( pButtonStop,  SIGNAL(clicked()), this, SLOT(quit()));
}

RBG_LOG_TOOLS::~RBG_LOG_TOOLS()
{

}

//这个槽函数无法触发
void RBG_LOG_TOOLS::on_button_start( )
{

	QMessageBox::warning(this, QString("test"), QString("Hello"), QMessageBox::Yes, QMessageBox::Ignore );    

}

void RBG_LOG_TOOLS::mouseReleaseEvent(QMouseEvent *e)
{


}

[WHUTztb]

声明的时候没把它声明为槽函数，当然连不上了。public slots:

[牛奶味的榴莲]

引用 1 楼 WHUTztb 的回复:

声明的时候没把它声明为槽函数，当然连不上了。public slots:

非常感谢，问题解决。学艺不精，谢谢指点