[wdmaudiodev] Mixer messages
- From: "Hock Yiung HUANG" <hyhuang@xxxxxxxxxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Tue, 18 Mar 2003 19:21:40 -0800
Is there a way to generate events in the mixer topology miniport using
IPortEvents that will get translated to MM_MIXM_LINE_CHANGE for the mixer
applications ?The mixer application only refresh its display upon getting
MM_MIXM_LINE_CHANGE or when it is opened. Without MM_MIXM_LINE_CHANGE, the
user would have to close & reopen the mixer application to see the changes
when mixer controls got enabled or disabled (greyed out).
MM_MIXM_CONTROL_CHANGE can be triggered in the miniport by calling
IPortEvents->GenerateEventList(NULL, KSEVENT_CONTROL_CHANGE, FALSE,
ULONG(-1), TRUE, NodeId). However, the mixer application doesn't refresh
immediately when it received this message.
What properties/event handler is required for the topology miniport to
generate MM_MIXM_LINE_CHANGE ?
Thanks.
-HockYiung
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