标题:Qt信号与槽的connect方法参数的含义
作者:vechary
日期:2016-03-25 09:49
内容:
成员函数的指针作为信号和槽
static QMetaObject::Connection connect(
const QObject *sender,
PointerToMemberFunction signal,
const QObject *receiver,
PointerToMemberFunction method,
Qt::ConnectionType type = Qt::AutoConnection
);
成员函数作为信号，全局函数，lambda表达式等普通函数作为槽
static QMetaObject::Connection connect(
const QObject *sender,
PointerToMemberFunction signal,
Functor functor
);
TODO:context做什么用的？
static QMetaObject::Connection connect(
const QObject *sender,
PointerToMemberFunction signal,
const QObject *context,
Functor functor,
Qt::ConnectionType type = Qt::AutoConnection
);
最后一种重载中，connect(sender, signal, context, functor);
context是什么意思？应该如何传参？