Qt5 右键菜单

类成员：

    QMenu *m_pRBMenu;

    QAction *m_pCloseAct;

    QAction *m_pMaxiMinimizeAct;

    QMenu *m_pSDMenu;

    QAction *m_pSoundOffAct;

    QAction *m_pSoundOnAct;

创建右键菜单，连接槽函数：

/* 创建右键菜单 */

void Clock::createMenu()

{

    m_pRBMenu = new QMenu(this);

    m_pCloseAct = new QAction(this);

    m_pCloseAct->setIcon( QIcon(":/ico/closeBt.ico") );

    m_pCloseAct->setText( tr("关闭") );

    m_pMaxiMinimizeAct = new QAction(this);

    m_pMaxiMinimizeAct->setText( tr("全屏") );

    m_pMaxiMinimizeAct->setIcon( QIcon(":/ico/fullscreen.ico") );

    m_pRBMenu->addAction(m_pCloseAct);

    m_pRBMenu->addSeparator();

    m_pRBMenu->addAction(m_pMaxiMinimizeAct);

    connect (m_pCloseAct, SIGNAL(triggered(bool)), this, SLOT(close()) );

    connect( m_pMaxiMinimizeAct, SIGNAL(triggered(bool)),

             this, SLOT( slot_showMaxiNormal() ) );

    /* 二级菜单 */

    m_pRBMenu->addSeparator();

    m_pSDMenu = m_pRBMenu->addMenu( QIcon(":/ico/sound.ico"), tr("音效控制") );

    m_pSoundOnAct = new QAction(this);

    m_pSoundOnAct->setText( tr("音效开") );

    m_pSoundOnAct->setIcon( QIcon(":/ico/nocheck.ico") );

    m_pSoundOffAct = new QAction(this);

    m_pSoundOffAct->setText( tr("音效关") );

    m_pSoundOffAct->setIcon( QIcon(":/ico/check.ico") );

    m_pSDMenu->addAction(m_pSoundOnAct);

    m_pSDMenu->addAction(m_pSoundOffAct);

    connect (m_pSoundOnAct, SIGNAL(triggered(bool)),

             this, SLOT( slot_EffectControl() ) );

    connect( m_pSoundOffAct, SIGNAL(triggered(bool)),

             this, SLOT( slot_EffectControl() ) );

}

右键菜单响应：

/* 重写右键菜单响应事件 */

void Clock::contextMenuEvent(QContextMenuEvent *event)

{

    m_pRBMenu->exec(QCursor::pos()); // 在光标处弹出右键菜单

    event->accept();

}