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MM_MIXM_LINE_CHANGE
The MM_MIXM_LINE_CHANGE message is sent by a mixer device to notify an
application that the state of an audio line on the specified device has changed. The
application should refresh its display and cached values for the specified audio
line.
MM_MIXM_LINE_CHANGE
wParam = (WPARAM) hMixer
lParam = (LPARAM) dwLineID
Parameters
hMixer
Handle of the mixer device that sent the notification message.
dwLineID
Line identifier for the audio line that has changed state. This identifier is
the same as the dwLineID member of the MIXERLINE structure returned by the mixerGetLineInfo function.
Remarks
An application must open a mixer device and specify a callback window to
receive the MM_MIXM_LINE_CHANGE message.
See Also
mixerGetLineInfo, MIXERLINE
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