我写了这段代码,但我得到这个错误: "left of '->key' must point to class/struct/union/generic type". 考虑到GUI从QWidget类派生的类,我怎么能适当地捕捉一个关键的压制? void GUI::keyPressEvent(QKeyEvent *event)
{
if (event->key()==Qt::Key_Up)
我有以下的设计 QWidget
QFrame promoted to FooComponent
QLineEdit a (internal tab order 1)
QLineEdit b (tab order 2)
QLineEdit c (tab order 1)
Qt Creator中(设计师)我不能设置为FooComponent Tab键顺序。所