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QCoreApplication: add doc to discourage use of processEvents

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Change-Id: If51855da004b4f3fbf43fffd1648fc580c00224a
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
This commit is contained in:
Thiago Macieira 2020-11-19 10:32:02 -08:00
parent 8ec9a48e80
commit 47778847ec
1 changed files with 8 additions and 4 deletions
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12
src/corelib/kernel/qcoreapplication.cpp
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@ -1231,8 +1231,10 @@ bool QCoreApplication::closingDown()
Processes some pending events for the calling thread according to
the specified \a flags.
You can call this function occasionally when your program is busy
performing a long operation (e.g. copying a file).
Use of this function is discouraged. Instead, prefer to move long
operations out of the GUI thread into an auxiliary one and to completely
avoid nested event loop processing. If event processing is really
necessary, consider using \l QEventLoop instead.
In the event that you are running a local loop which calls this function
continuously, without an event loop, the
@ -1268,8 +1270,10 @@ void QCoreApplication::processEvents(QEventLoop::ProcessEventsFlags flags)
milliseconds or until there are no more events to process,
whichever is shorter.
You can call this function occasionally when your program is busy
doing a long operation (e.g. copying a file).
Use of this function is discouraged. Instead, prefer to move long
operations out of the GUI thread into an auxiliary one and to completely
avoid nested event loop processing. If event processing is really
necessary, consider using \l QEventLoop instead.
Calling this function processes events only for the calling thread.