[Development] Processing synthesized mouse events in platform plugins

[Александр Волков]

Oh, sorry, I'm not familiar with OS X and I was keeping in mind 
touchscreens.
Of course all this is not related to touchpads. And setting 
Qt::MouseEventSynthesizedBySystem for touchpads
is not really correct because mouse events are synthesized differently 
for touchpads and touchscreens.

So there is only one thought from my original message that makes sense:
ignore synthesized left mouse button events on Windows.

07.01.2015 16:34, Sorvig Morten пишет:
> This is correct; historically touchpad mouse events have been treated as “real” mouse events.
>
> In fact, single-point touch events are not forwarded to Qt, unless
> 1) the event receiver is a QWidget
> 2) that QWidget has WA_TouchPadAcceptSingleTouchEvents set.
>
> Setting Qt::MouseEventSynthesizedBySystem sounds like something we should do provided that information is available on the native event.
>
> I’m not sure about the "ignore synthesized mouse events” part: What would change from the app perspective, and how would we preserve compatibility?
>
> Morten