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4/8/2010

This method provides an enumerator that enumerates registered filters that meet specified requirements.

Syntax 

HRESULT EnumMatchingFilters(
  IEnumRegFilters** 
ppEnum,
  DWORD 
dwMerit,
  BOOL 
bInputNeeded,
  CLSID 
clsInMaj,
  CLSID 
clsInSub,
  BOOL 
bRender,
  BOOL 
bOutputNeeded,
  CLSID 
clsOutMaj,
  CLSID 
clsOutSub
);

Parameters

ppEnum

[out] Enumerator returned.

dwMerit

[in] Enumerate only filters with at least this merit.

bInputNeeded

TRUE if there must be at least one input pin.

clsInMaj

[in] Input major type required. Set to GUID_NULL if you do not care.

clsInSub

[in] Input subtype required. Set to GUID_NULL if you do not care.

bRender

[in] Option that specifies if the input must be rendered by this filter.

bOutputNeeded

TRUE if there must be at least one output pin.

clsOutMaj

[in] Output major type required. Set to GUID_NULL if you do not care.

clsOutSub

[in] Output subtype required. Set to GUID_NULL if you do not care.

Return Value

Returns an HRESULTvalue.

Remarks

Set the ppEnumparameter to be an enumerator for filters matching the requirements. For a description of merit values for the dwMeritparameter, see the IFilterMapper::RegisterFiltermethod.

Requirements

Windows Embedded CE Windows CE 2.12 and later
Windows Mobile Windows Mobile Version 5.0 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment,
Version 2.12 requires DXPAK 1.0 or later

See Also