【Qt】EventFilter,要增加事件拦截器才能拦截到事件
在构造函数中增加事件拦截器
void QObject::installEventFilter(QObject *filterObj)
Installs an event filter filterObj on this object. For example:
在构造函数中增加事件拦截器
void QObject::installEventFilter(QObject *filterObj)
Installs an event filter filterObj on this object. For example: