IAMLine21Decoder::GetDrawBackgroundMode

Microsoft DirectShow 9.0

IAMLine21Decoder::GetDrawBackgroundMode

The GetDrawBackgroundMode method indicates whether the Line 21 Decoder filter draws the captions on a transparent background or an opaque background. By default, the caption background is opaque.

Syntax

  HRESULT GetDrawBackgroundMode(
  AM_LINE21_DRAWBGMODE *lpMode
);

Parameters

lpMode

Pointer a variable that receives a member of the AM_LINE21_DRAWBGMODE enumeration.

Return Values

Returns an HRESULT value. Possible values include the following.

Value	Description
E_INVALIDARG	Invalid argument
S_OK	Success

Requirements

Header: Include il21dec.h.

Library: Use Strmiids.lib.

See Also

• Error and Success Codes
• IAMLine21Decoder Interface
• IAMLine21Decoder::SetDrawBackgroundMode