capGetAudioFormatSize macro

The capGetAudioFormatSize macro obtains the size of the audio format. You can use this macro or explicitly call the WM_CAP_GET_AUDIOFORMAT message.

Syntax

void capGetAudioFormatSize(
   hwnd
);

Parameters

hwnd

Handle to a capture window.

Return Value

None

Remarks

Because compressed audio formats vary in size requirements applications must first retrieve the size, then allocate memory, and finally request the audio format data.

Requirements

   
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header vfw.h

See Also

Video Capture

Video Capture Macros