Qt 4.6: Porting to Qt 4 When QT3_Support is defined, the default connection type for signals and slots is the Qt::AutoCompatConnection type. This allows so-called compatibility signals and slots (defined in Qt 3 support mode to provide Qt 3 compatibility features … Understand the Qt containers | -Wmarc // global shared data: QVector g_data; QMutex g_mutex; void reader() { QMutexLocker locker( &g_mutex ); // make a (shallow) copy under mutex protection: const QVector copy = g_data; // can already unlock the mutex again: locker … Qt Toolkit - QMetaObject Class QMetaObject ( const char * class_name, const char * superclass_name, QMetaData * slot_data, int n_slots, QMetaData * signal_data, int n_signals ) (internal) Slot qt const -
Qt using boost::shared_ptr in a signal/slot. Ask Question 8. 4. ... According to one of the answer in this question Argument type for Qt signal and slot, does const reference qualifiers matters?, for a queued connection, the object is copied regardless of how you connect the signal and slot.
Qt 4.6: QAssistantClient Class Reference - Trinity Desktop ... QAssistantClient Class Reference. ... slot can be called ... the default documentation set in Qt Assistant contains the Qt reference documentation as well as ... Qt 4.7: QMetaMethod Class Reference Qt Reference Documentation. Home; Modules; ... Signal, Slot, Constructor } Public Functions. ... const: bool: invoke ( QObject * object, Qt::ConnectionType ... Qt 4.7: QTextBrowser Class Reference
Detailed Description. The QAbstractItemModel class provides the abstract interface for item model classes. The QAbstractItemModel class defines the standard interface that item models must use to be able to interoperate with other components in the model/view architecture.
New Signal Slot Syntax - Qt Wiki
c++ - const-ref when sending signals in Qt - Stack Overflow
If we hold a copy of the object to return, returning a const reference is the fastest approach; however, this restrains us later on if we want to refactor the class. (Using the d-pointer idiom, we can change the memory representation of Qt … QTextEdit Class | Qt Widgets 5.12.3 The rich text support in Qt is designed to provide a fast, portable and efficient way to add reasonable online help facilities to applications, and to provide a basis for rich text editors.
Qt is well known for its signals and slots mechanism. But how does it work? In this blog post, we will explore the internals of QObject and QMetaObject and discover how signals and slot work under the hood. In this blog article, I show portions of Qt5 code, sometimes edited for formatting and brevity.
[static] QByteArray QMetaObject:: normalizedType(const char * type) Qt for Beginners - Qt Wiki This chapter covers the second part of signals and slots: implementing custom signals and slots. Qt Script Firstly, not every C++ type is derived from QObject; types that are not QObjects cannot be introspected through Qt's meta-object system (they do not have properties, signals and slots). QMetaMethod Class | Qt Core 5.12.2
Aug 2, 2006 ... const char* getDataValue (GameUpdateIndices index);. private: ... You can't pass references through a signal/slot connection. Either use ...