IBaseFilter::QueryFilterInfo (Compact 2013)

  • Article

3/26/2014

This method returns information about the filter.

Syntax

HRESULT QueryFilterInfo(
  FILTER_INFO* pInfo
);

Parameters

Return Value

Returns an HRESULT value that depends on the implementation.

HRESULT can be one of the following standard constants or other values not listed.

Value

Description

E_FAIL

Failure.

E_POINTER

Null pointer argument.

E_INVALIDARG

Invalid argument.

E_NOTIMPL

Method is not supported.

S_OK or NOERROR

Success.

Remarks

The FILTER_INFO structure is defined as follows.

typedef struct _FilterInfo  {
    [string] WCHAR achName[MAX_FILTER_NAME]; // allowed to be null
    IFilterGraph * pGraph;                   // null if not part of graph
    } FILTER_INFO ;

On return, if the pGraph member of the FILTER_INFO structure is non-NULL, it will have an outstanding reference count and should be released when the interface is no longer needed.

Requirements

Header

dshow.h

Library

Strmiids.lib

See Also

Reference

IBaseFilter Interface