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IEnumMediaTypes::Next (Windows Embedded CE 6.0)

1/6/2010

This method retrieves the specified number of items in the enumeration sequence.

Syntax

HRESULT Next(
  ULONG cMediaTypes,
  AM_MEDIA_TYPE** ppMediaTypes,
  ULONG* pcFetched
);

Parameters

  • cMediaTypes
    [in] Number of media types to place.
  • ppMediaTypes
    [out] Array in which to place the pointers to the next media type.
  • pcFetched
    [out] Actual count 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

To use this method, pass an array of pointers to media types.

If you want only a single media type, you can pass a pointer to a media type pointer in place of an array of media type pointers.

The interface allocates the necessary AM_MEDIA_TYPE structures and initializes them with the variable format block.

Free each media type by calling DeleteMediaType, which will free the format block and the media type itself.

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

IEnumMediaTypes Interface