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IEnumRegFilters::Next (Windows Embedded CE 6.0)

  • Article

1/6/2010

This method fills the array with descriptions of the next set of filters (specified by the cFilters parameter) that meet the requirements specified upon creation of the enumerator.

Syntax

HRESULT Next(
  ULONG cFilters,
  REGFILTER** apRegFilter,
  ULONG* pcFetched
);

Parameters

  • cFilters
    [in] Number of filters.
  • apRegFilter
    [out] Pointer to an array of REGFILTER pointers.
  • pcFetched
    [out] Actual number of filters passed.

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 calling application must use the Win32 CoTaskMemFree function to free each REGFILTER pointer returned in the array.

Do not free the Name member of the REGFILTER structure separately. IEnumRegFilters::Next allocates memory for this string as part of the REGFILTER structure.

Requirements

Windows Embedded CE Windows CE 2.12 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

Reference

IEnumRegFilters Interface