QT为QLabel添加Click事件

 #ifndef CLICKEDLABEL_H_
 #define CLICKEDLABEL_H_
 #include <QLabel>
 #include <QWidget>
 class ClickedLabel : public QLabel
 {
     Q_OBJECT
 signals:
     void Clicked(ClickedLabel* clicked);
 public:
     ClickedLabel(QWidget *parent=0): QLabel(parent),m_str("")
     {
         setText(m_str);
     };
     ~ClickedLabel() {};
 protected:
     void mouseReleaseEvent( QMouseEvent* );
 private:
     QString m_str;
 };
 #endif /* CLICKEDLABEL_H_ */

ClickedLabel.cpp

Cpp代码

 #include "ClickedLabel.h"
 void ClickedLabel::mouseReleaseEvent(QMouseEvent *evt)
 {
     emit Clicked(this);
 }

转载地址：http://buliedian.iteye.com/blog/1059188