Microsoft DirectX 8.1 (C++)

IAMLine21Decoder::GetDrawBackgroundMode

The GetDrawBackgroundMode method retrieves whether the caption text background should be opaque or transparent.

Syntax

HRESULT GetDrawBackgroundMode(
  AM_LINE21_DRAWBGMODE *lpMode
);

Parameters

lpMode

Pointer to the retrieved mode, either AM_L21_DRAWBGMODE_Opaque or AM_L21_DRAWBGMODE_Transparent.

Return Values

Returns an HRESULT value that depends on the implementation of the interface. The current DirectShow implementation returns E_INVALIDARG if a parameter is invalid or NOERROR to indicate success.

Remarks

By default, the caption background is opaque.

See Also