Comments (5)
you have to emit signals yourself in the callback. see https://github.com/wang-bin/qtmultimedia-plugins-mdk/blob/master/mediaplayercontrol.cpp#L44 https://github.com/wang-bin/qtmultimedia-plugins-mdk/blob/master/mediaplayercontrol.cpp#L47
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i have tried the following from the above link, but its still not working
_player->onStateChanged([this](State value){
Q_EMIT stateChanged(value);
});
_player->onMediaStatusChanged([this](MediaStatus value){
Q_EMIT mediaStatusChanged(value);
return true;
});
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how do you connect signals?
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i tried this first but it didn't work
connect(player,&MediaPlayer::mediaStatusChanged,this,&MainWindow::mediaStatusChanged);
then i tried this, it also didn't work connect(player,SIGNAL(mediaStatusChanged()),this,SLOT(mediaStatusChanged()),Qt::DirectConnection);
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connect(player,&MediaPlayer::mediaStatusChanged,this,&MainWindow::mediaStatusChanged);
It's a queued connection, signal parameter type MediaStatus
must be known to qt metatype system.
Q_DECLARE_METATYPE(mdk::MediaStatus) // declare in global scope
qRegisterMetaType<MediaStatus>(); // in a function
connect(player,SIGNAL(mediaStatusChanged()),this,SLOT(mediaStatusChanged()),Qt::DirectConnection);
forgot signal parameter? qRegisterMetaType too.
other options can be
connect(this, & MediaPlayer::mediaStatusChanged, []{});
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