[Interest] [SOLVED] Re: QGraphicsView viewport touch event on iOS through event filter

[Jakob Magiera]

No exec(), seriously? Could you point me to a place that elaborates on this? I mean the QDialog doc clearly states

>>The most common way to display a modal dialog is to call its exec() function.<<

What gives?

Jakob

-----Ursprüngliche Nachricht-----
Von: interest-bounces+jam=ivu.de at qt-project.org [mailto:interest-bounces+jam=ivu.de at qt-project.org] Im Auftrag von Thiago Macieira
Gesendet: Mittwoch, 26. August 2015 17:17
An: interest at qt-project.org
Betreff: Re: [Interest] [SOLVED] Re: QGraphicsView viewport touch event on iOS through event filter

On Wednesday 26 August 2015 10:02:16 maitai wrote:
> Conclusion is: never ever call processEvents() from a eventFilter or 
> similar event() routines

Never do that.

And avoid processEvents() and exec() functions anywhere, period. Nested event 
loops cause weird event delivery problems because some events get delivered 
unexpectedly and you recurse into your event filters and slots.

-- 
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center

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