MM_MIXM_LINE_CHANGE (Windows CE 5.0)

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This 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_CHANGEwParam = (WPARAM) hMixerlParam = (LPARAM) dwLineID

Parameters

  • hMixer
    Handle of the mixer device (HMIXER) that sent the 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.

Return Values

None.

Remarks

An application must open a mixer device and specify a callback window to receive the MM_MIXM_LINE_CHANGE message.

Requirements

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
Header: Mmsystem.h.

See Also

mixerGetLineInfo | MIXERLINE | Hardware Audio Mixer Messages

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