wm-cap-set-audioformat.md

title	description	ms.assetid	keywords	topic_type	api_name	api_location	api_type	ms.topic	ms.date
WM_CAP_SET_AUDIOFORMAT message (Vfw.h)	The WM\_CAP\_SET\_AUDIOFORMAT message sets the audio format to use when performing streaming or step capture. You can send this message explicitly or by using the capSetAudioFormat macro.	8bffa401-3d36-43bb-9f69-988ebc69b860	WM_CAP_SET_AUDIOFORMAT message Windows Multimedia	apiref	WM_CAP_SET_AUDIOFORMAT	Vfw.h	HeaderDef	reference	05/31/2018

WM_CAP_SET_AUDIOFORMAT message

The WM_CAP_SET_AUDIOFORMAT message sets the audio format to use when performing streaming or step capture. You can send this message explicitly or by using the capSetAudioFormat macro.

WM_CAP_SET_AUDIOFORMAT 
wParam = (WPARAM) (wSize); 
lParam = (LPARAM) (LPVOID) (LPWAVEFORMATEX) (psAudioFormat); 

Parameters

wSize

Size, in bytes, of the structure referenced by s.

psAudioFormat

Pointer to a WAVEFORMATEX or PCMWAVEFORMAT structure that defines the audio format.

Return Value

Returns TRUE if successful or FALSE otherwise.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Header	Vfw.h

See also

Video Capture

Video Capture Messages