Envoyer des événements clavier ou souris

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#ifndef MOUSEOVERBUTTON_H 
#define MOUSEOVERBUTTON_H 
  
#include <QPushButton> 
  
class MouseOverButton : public QPushButton 
{ 
    Q_OBJECT 
  
public: 
    explicit MouseOverButton(QWidget *parent = 0); 
    ~MouseOverButton(); 
  
    inline const bool isMouseOver(); 
  
signals: 
    void entered(); 
    void leaved(); 
    void mouseIsOver(bool over); 
  
private: 
    bool mouseOver; 
  
    void enterEvent(QEvent *); 
    void leaveEvent(QEvent *); 
  
private slots: 
    void setMouseOver(bool over); 
}; 
  
inline const bool MouseOverButton::isMouseOver() { 
    return mouseOver; 
} 
  
#endif // MOUSEOVERBUTTON_H

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#include "mouseoverbutton.h" 
  
MouseOverButton::MouseOverButton(QWidget *parent) : 
    QPushButton(parent) 
{ 
    connect(this, SIGNAL(mouseIsOver(bool)), SLOT(setMouseOver(bool))); 
} 
  
MouseOverButton::~MouseOverButton() 
{ 
} 
  
void MouseOverButton::enterEvent(QEvent *) { 
    emit mouseIsOver(true); 
} 
  
void MouseOverButton::leaveEvent(QEvent *) { 
    emit mouseIsOver(false); 
} 
  
void MouseOverButton::setMouseOver(bool over) { 
    mouseOver = over; 
    if (mouseOver) 
        emit entered(); 
    else 
        emit leaved(); 
}