capGetAudioFormatSize macro (vfw.h)
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
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | vfw.h |