Compartilhar via

AM_LINE21_DRAWBGMODE enumeration (il21dec.h)

  • Artigo

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]

Indicates the closed captioning text background mode.

Syntax

typedef enum _AM_LINE21_DRAWBGMODE {
  AM_L21_DRAWBGMODE_Opaque,
  AM_L21_DRAWBGMODE_Transparent
} AM_LINE21_DRAWBGMODE, *PAM_LINE21_DRAWBGMODE;

Constants

 
AM_L21_DRAWBGMODE_Opaque
Opaque background.
AM_L21_DRAWBGMODE_Transparent
Transparent background.

Requirements

Requirement Value
Header il21dec.h

See also

DirectShow Enumerated Types

IAMLine21Decoder::GetDrawBackgroundMode

IAMLine21Decoder::SetDrawBackgroundMode