so add a new sink or get an update on state and e will SEt volume/mute
settings, not just passively disdplay them. this has been messing up
rage's winlist (mouse over on right) for several months now... and e
is/was wrong.
this doesnt fix all. if an app has multiple streams really this client
mixer needs to display a control per stream, not a single one - eg in
a popup. in fact volume shoud likely be done in a popup instead of
inside titlebar anyway :)
but this fixes the most annoying problem where withotu users doing
anything, the audio starts to play from streams explicitly muted by
the app...
This api give the possibility to add sink to an E_Client and control the volume
or the mute state of the sinks associated with this E_Client.
@features