Searching for Qt Thread Support Qt4 information? Find all needed info by using official links provided below.
https://doc.qt.io/archives/qt-4.8/qt4-threads.html
Comparison with Qt 3. Earlier versions of Qt offered an option to build the library without thread support. In Qt 4, threads are always enabled. Qt 3 had a class called QDeepCopy that you could use to take a deep copy of an implicitly shared object. In Qt 4, the atomic reference counting makes this class superfluous.
https://doc-snapshots.qt.io/4.8/qt4-threads.html
Comparison with Qt 3. Earlier versions of Qt offered an option to build the library without thread support. In Qt 4, threads are always enabled. Qt 3 had a class called QDeepCopy that you could use to take a deep copy of an implicitly shared object. In Qt 4, the atomic reference counting makes this class superfluous.
https://doc.qt.io/archives/qt-4.8/qthread.html
Detailed Description. The QThread class provides a platform-independent way to manage threads.. A QThread object manages one thread of control within the program. QThreads begin executing in run(). By default, run() starts the event loop by calling exec() and runs a Qt event loop inside the thread. You can use worker objects by moving them to the thread using …
https://forum.qt.io/topic/77180/sorting-a-tree-view-qt5-vs-qt4-issue/4?page=1
So far I've not ran into too many differences between Qt5 and 4. The ones I have encountered have just been renamed functions. My problem now is the code compiles on both Qt5 and 4 but only works as expected on Qt5.
https://qt.developpez.com/doc/4.7/qt4-threads/
Qt TV PyQt & PySide · Page d'accueil · Toutes les classes · Toutes les fonctions · Vues d'ensemble ·
https://forum.qt.io/topic/28956/qt_largefile_support-macro-redifinition-issue-with-qt4-8-5
I'm using the Qt libraries 4.8.5 for Windows (VS 2010, 235 MB) package. When I switch from Qt4.8.4 to Qt4.8.5 I get a lot of warnings of type QT_LARGEFILE_SUPPORT macro redifinition, more precisely one for each moc_xyz.cpp file. Any idea?
Qt is the faster, smarter way to create innovative devices, modern UIs & applications for multiple screens. Cross-platform software development at its best.
https://wiki.qt.io/Qt_Serial_Port
Note: Also added support for Qt4. Serial interfaces, due to their simplicity and reliability, are still popular in some industries like the development of embedded systems, robotics, etc. Using the QtSerialPort module, developers can significantly reduce the time needed to implement Qt applications that require access to a serial interface.
http://www.informit.com/articles/article.aspx?p=1405551&seqNum=4
Nov 06, 2009 · Using Qt's Classes in Secondary Threads. A function is said to be thread-safe when it can safely be called from different threads simultaneously. If two thread-safe functions are called concurrently from different threads on the same shared data, the result is always defined.
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