Tīmeklis2011. gada 13. maijs · staticMetaObject. I'm sort of new to Qt, but I've run this by some more experienced coworkers, and they're stumped as well. My job is to port the … Tīmeklis2012. gada 5. dec. · Qt 的信号槽和属性系统基于在运行时进行内省的能力。. 内省意味着,我们可以列出对象的方法和属性列表,并且能够获取有关它们的所有信息,例如其参数类型。. 没有这种内省能力,QtScript 和 QML 就很难实现。. C++ 原生并没有提供内省,所以 Qt 提供了一个工具 ...
staticMetaObject - Qt Centre
TīmeklisQt Inside信号和槽之connect. 首先connect是一个重载函数,我们最常使用的则是四个参数的调用,即默认连接类型为AutoConnection,也就是下面这个样子: QMetaObject ::Connection connect Connection () : nextConnectionList (0), ref_ (2), ownArgumentTypes (true) { // ref_ 赋值为 2,以便内部列表 ... Tīmeklis** Licensees holding valid commercial Qt licenses may use this file in: 12 ** accordance with the commercial license agreement provided with the: 13 ... return static_cast(ObjType::staticMetaObject.cast); 525} 526: 527: template 528: inline T qobject_cast(const QObject *object) marks handbook of mechanical engineering
New in Qt 5.8: meta-object support for namespaces - KDAB
Tīmeklis属性staticMetaObject,元数据对象,可以从中获取当前类的元数据; 方法metaObject(),获取元数据对象指针,大多数情况下,返回staticMetaObject指针; … Tīmeklis{ return staticMetaObject.tr(s, c, n); } \ 134: QT_DEPRECATED static inline QString trUtf8(const char *s, const char *c = nullptr, int n = -1) \ 135 { return staticMetaObject.tr(s, c, n); } 136 # else: 137 // inherit the ones from QObject: 138 # define QT_TR_FUNCTIONS: 139 # endif: 140: 141 # ifdef Q_CLANG_QDOC: 142: Tīmeklis2009. gada 29. maijs · What this is saying is that QTreeWidgetItem does not inherit from QObject, meaning that your own, singly-inherited class also does not inherit from … navy standard items fy21