IAMLine21Decoder::GetServiceState
| Microsoft DirectShow 9.0 |
IAMLine21Decoder::GetServiceState
The GetServiceState method indicates whether closed captioning is on or off.
Syntax
HRESULT GetServiceState( AM_LINE21_CCSTATE *lpState );
Parameters
lpState
Pointer to a variable that receives a member of the AM_LINE21_CCSTATE enumeration.
Return Values
Returns an HRESULT value. Possible values include the following.
| Value | Description |
| E_INVALIDARG | Invalid argument |
| S_OK | Success |
Remarks
By default, the Line 21 Decoder enables closed captioning.
Requirements
Header: Include il21dec.h.
Library: Use Strmiids.lib.
See Also