IAMLine21Decoder::GetCurrentService method (il21dec.h)

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The GetCurrentService method retrieves the current closed captioning service.

Syntax

HRESULT GetCurrentService(
  AM_LINE21_CCSERVICE *lpService
);

Parameters

lpService

Pointer to a variable that receives a member of the AM_LINE21_CCSERVICE enumeration. The default service is CC1.

Return value

Returns an HRESULT value. Possible values include the following.

Requirements

See also

Error and Success Codes

IAMLine21Decoder Interface

IAMLine21Decoder::SetCurrentService