Question

我试图用Qt执行一个短击手,使用户能够洗手。我希望,它具有互动性,这样一米会像目前所打的那样展现出捷径,而不仅仅是在完成的时候。我认为,我不是远未解决问题的,但我仍有一些问题与元钥匙(Windows钥匙)有关。

第一种情况似乎会发现,如果使用假肢者功能的话语句如下,但不是最后的。

void ShortcutInputWidget::handleKeyEvent(QKeyEvent *event)
{
    int keyDisplayed = event->key();
    Qt::Key keys = static_cast<Qt::Key>(keyDisplayed);

    // if the key pressed is only a modifier, we reset the key
    if(keys == Qt::Key_Control ||
        keys == Qt::Key_Shift ||
        keys == Qt::Key_Alt ||
        keys == Qt::Key_Meta)
    { 
        qDebug() << "Single press of special key: Ctrl, Shift, Alt or Meta";
        if (keys == Qt::Key_Meta)
            qDebug() << "meta: " << QKeySequence(Qt::META);
        keyDisplayed = 0;
    }

    // handle modifiers
    Qt::KeyboardModifiers modifiers = event->modifiers();
    QString text = event->text();
    qDebug() << text;
    if (modifiers & Qt::ShiftModifier){
        keyDisplayed |= Qt::SHIFT;
        qDebug() << "shift modifier detected";
    }
    if (modifiers & Qt::ControlModifier){
        keyDisplayed |= Qt::CTRL;
        qDebug() << "control modifier detected";
    }
    if (modifiers & Qt::MetaModifier){
        keyDisplayed |= Qt::META;
        qDebug() << "meta detected";
    }
    if (modifiers & Qt::AltModifier){
        keyDisplayed |= Qt::ALT;
        qDebug() << "alt modifier detected";
    }

    qDebug() << QKeySequence(keyDisplayed);
    setText(QKeySequence(keyDisplayed));
    event->accept();
}

如果我只打了元钥匙,则产出为<代码>meta:QKeySequence(“Meta+”),但没有发现的<代码>meta>。但是,如果我打上了“ctrl + meta”号,则这两张话都探测到了元钥匙。

我做了一些错误?

EDIT:我只想提及使用Windows 7的Im,我有一个EN-GB键盘

Answer 1

视窗钥匙似乎不是modifier。贵方对贵方所获得价值进行删减或打印时

 Qt::KeyboardModifiers modifiers = event->modifiers();

你们在把窗户关起来时获得空洞的旗帜,但对于你所处理的其他关键人物来说,没有空洞的旗帜。我认为这是有意义的,因为根据我的经验, 窗口钥匙从未使用逐用户应用程序<>。

现在,Mac Key公司在MacOS公司违约后是变造者,而这一钥匙的窗户在使用Mac计算机的窗户时被分配到。这确实是trick笑的,因为它在管理第X号业务时可以成为有效的变压器,在使用Windows时不能有效。

The only advice I can give is to think again about what you want to achieve, and then test on Mac, Windows, and Linux separately. Sometimes it is necessary to ensure portability.

Answer 2

Well I run the same sample On Linux[Qt creator]. It worked perfectly, both messages were displayed. Might be some OS related issue in your case. The key I pressed was windows key which it detected as meta key.

Single press of special key: Ctrl, Shift, Alt or Meta 
meta:  QKeySequence("Meta+") 
"" 
meta detected 
QKeySequence("Meta+")

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