C++ Qt：按键事件
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Qt : KeyPress event
提问by user1693462
i am starter in Qt and was implementing keypressevent. I want to handle keys in such a way that if 'A' is pressed it shoud print 'R' and press of other key i should print.
我是 Qt 的初学者，正在实施 keypressevent。我想以这样的方式处理键，如果按下“A”，它应该打印“R”并按下我应该打印的其他键。
How this type of activity can be handled in Qt...??
如何在 Qt 中处理这种类型的活动......？
回答by SingerOfTheFall
You can get the key that was pressed by using a key()function. The list of codes for the keys can be found at this doc page. So, if you want your Akey, you can either do
您可以使用key()函数获取按下的键。可以在此文档页面中找到密钥代码列表。所以，如果你想要你的A钥匙，你可以这样做
keyPressEvent( QKeyEvent * event )
{
if( event->key() == Qt::Key_A )
{
// do your stuff here
}
}
or use the key code directly:
或直接使用密钥代码：
if( event->key() == 0x41 )
{
// do your stuff here
}
