通过

IAMWstDecoder::GetServiceState

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Microsoft DirectShow 9.0

IAMWstDecoder::GetServiceState

Applications use the GetServiceState method to retrieve the current service state.

Syntax

  HRESULT GetServiceState
  AM_WST_STATE*
  
  lpState
  
  );

Parameters

lpState

[out]  Pointer to a variable that receives the state, specified as a member of the AM_WST_STATE enumeration. The following values are possible.

Value Description
AM_WST_STATE_On The WST service is on.
AM_WST_STATE_Off The WST service is off.

Return Values

When the method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

Header: Include Iwstdec.h.

Library: Use Strmiids.lib.

See Also