Native Development

[sporadicsoftware]

Does anyone know how to capture the Play/Pause Button with Qt? I tried looking for it in a keyPressEvent like I do for the swipe-down menu but nothing gets triggered there.

Thanks

Nic

[sporadicsoftware]

Anybody have an idea? I thought I would bump this after the weekend. Something that may be of interest (and possibly part of the problem) is that when I use Qt Mobility I get an error message in my log: 

Unable to request multimedia events 

Anybody now why that would happen? This error is coming the from the standard mmrender_request_events function. Is there a permission/action I need to have? I have this right now:

<action system="true">run_native</action>
<action>access_shared</action>
<action>set_audio_volume</action>
<action>play_audio</action>

Interestingly I am prompted to accept the file permission but nothing is asked of the audio permissions.

Thanks

Nic

[anhu · Accepted solution]

Hi, 

It’s being investigated internally.  Please log a Feature Request in JIRA and then post the JIRA Item URL back to this thread so we can help you monitor the status of your request. 

Anthony

[sporadicsoftware]

Thanks. Where do I log a Feature Request at?

Nic

[sporadicsoftware]

Ticket opened: https://www.blackberry.com/jira/browse/TABLET-626

[seanharmer · Accepted solution]

Hi,

Support for hardware buttons is now available in Qt 4.8 and Qt 5. See

https://codereview.qt-project.org/#change,34304 (Qt5)

https://codereview.qt-project.org/#change,34954 (Qt4)

The hardware buttons are mapped to Qt Key press events:

bid_minus -> Qt::Key_VolumeDown

bid_playpause -> Qt::Key_Play

bid_plus -> Qt::Key_VolumeUp

bid_power -> Qt::Key_PowerDown

Just override Qwidget::keyPressEvent() or QObject::event() as usual or use an eventFilter to respond to these events.

[sporadicsoftware]

Awesome! I tested this today and it works as expected.

Thanks!

Nic

[sporadicsoftware]

Is it possible to receive key events when the app is not in focus? I lose them when I switch to another app or if the PlayBook goes to standby.

Thanks

[seanharmer]

Good question. The honest answer is that I am not sure at the moment. I'll take a look.