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* As Stephan pointed out, the roster will be NULL if the media server is not

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running. Thanks! That's just another thing we should improve in R2.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30062 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2009-04-09 11:45:50 +00:00
parent bc608ebf93
commit 4e0b8ffdd6
1 changed files with 10 additions and 4 deletions
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src/bin/desklink/VolumeControl.cpp
+9 -3
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@@ -104,16 +104,22 @@ VolumeControl::AttachedToWindow()
SetEventMask(_IsReplicant() ? 0 : B_POINTER_EVENTS, B_NO_POINTER_HISTORY);
BMediaRoster::CurrentRoster()->StartWatching(this,
fMixerControl->GainNode(), B_MEDIA_NEW_PARAMETER_VALUE);
BMediaRoster* roster = BMediaRoster::CurrentRoster();
if (roster != NULL && fMixerControl->GainNode() != media_node::null) {
roster->StartWatching(this, fMixerControl->GainNode(),
B_MEDIA_NEW_PARAMETER_VALUE);
}
}
void
VolumeControl::DetachedFromWindow()
{
BMediaRoster::CurrentRoster()->StopWatching(this, fMixerControl->GainNode(),
BMediaRoster* roster = BMediaRoster::CurrentRoster();
if (roster != NULL && fMixerControl->GainNode() != media_node::null) {
roster->StopWatching(this, fMixerControl->GainNode(),
B_MEDIA_NEW_PARAMETER_VALUE);
}
}