ICGetDefaultKeyFrameRate

The ICGetDefaultKeyFrameRate macro queries a video compression driver for its default (or preferred) key-frame spacing. You can use this macro or explicitly call the ICM_GETDEFAULTKEYFRAMERATE message.

DWORD ICGetDefaultKeyFrameRate(
  hic  
);
 

Parameters

hic

Handle of a compressor.

wParam

Address to contain the preferred key-frame spacing.

Return Values

Returns ICERR_OK if the driver supports this message or ICERR_UNSUPPORTED otherwise.

Remarks

The ICGetDefaultKeyFrameRate macro returns the default key frame rate.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in vfw.h.

See Also

Video Compression Manager Overview, Video Compression Macros, ICM_GETDEFAULTKEYFRAMERATE