[Qt-interest] strange behavior of spinbox when sleeping (Linux only)

[TP]

Christian Gagneraud wrote:

> It seems that some of the included headers pull this function, I would
> say, yes this is the POSIX sleep.
> 
> And using sleep() in a slot sounds strange to me. sleep() should
> always be avoided as QT is an event-driven framework.
> 
> If you really want to use sleep-like things (I guess for testing
> purpose), you could use this (Try searching the web for "QT sleep"):
> 
> #include <qwaitcondition.h>
> ...
> QWaitCondition sleep;
> sleep.wait(2000);   // 2s
> ...
> 
> Or simply keep with the busy loop, since anyway you're trying to
> simulate calculation time...

Thanks Christian,

In fact, this is a behavior that I obtained one year ago in a GUI that 
(probably) didn't use sleep at all (only classical calculations). At this 
time, I took note of this strange behavior, and I only take the time now to 
report it to a Qt forum.
Unfortunately, I cannot provide the example of one year ago: it has been 
lost in a change of computer, work, etc.

So, if it is expected that sleep() in my example lead to this strange 
behavior, and lead to a different behavior on Windows, then I have to admit 
it, and wait for the next time when I will obtain an example with the same 
behavior and no sleep() inside it.

Julien


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