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WIM_OPEN message (Mmsystem.h)

The WIM\_OPEN message is sent to a waveform-audio input callback function when a waveform-audio input device is opened.

de18e6b2-ea28-46d9-812c-e6dac49838ee

WIM_OPEN message Windows Multimedia

apiref

WIM_OPEN

Mmsystem.h

HeaderDef

reference

05/31/2018

WIM_OPEN message

The WIM_OPEN message is sent to a waveform-audio input callback function when a waveform-audio input device is opened.

WIM_OPEN 
dwParam1 = reserved 
dwParam2 = reserved

Parameters

This message does not return a value.

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Header	Mmsystem.h (include Windows.h)