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DMOEnum (Compact 2013)

  • [アーティクル]

3/26/2014

This function enumerates registered DMOs. The caller can search by category, media type, or both.

Syntax

HRESULT DMOEnum(
  REFGUID guidCategory,
  DWORD dwFlags,
  DWORD cInTypes,
  const DMO_PARTIAL_MEDIATYPE* pInTypes,
  DWORD cOutTypes,
  const DMO_PARTIAL_MEDIATYPE* pOutTypes,
  IEnumDMO** ppEnum
);

Parameters

  • guidCategory
    One of the DMO GUIDs. It specifies which category of DMO to search. Use GUID_NULL to search every category.
  • dwFlags
    Bitwise combination of zero or more flags from the DMO_ENUM_FLAGS enumeration.
  • cInTypes
    Number of input media types to use in the search criteria. Use zero to match any input type.
  • pInTypes
    Pointer to an array of DMO_PARTIAL_MEDIATYPE structures that contain the input media types. Specify the size of the array in the cInTypes parameter.
  • cOutTypes
    Number of output media types to use in the search criteria. Use zero to match any output type.
  • pOutTypes
    Pointer to an array of DMO_PARTIAL_MEDIATYPE structures that contain the output media types. Specify the size of the array in the cOutTypes parameter.
  • ppEnum
    Address of a variable to receive the IEnumDMO interface of the enumerator.

Return Value

Returns an HRESULT value. Possible values include the following.

Value

Description

S_OK

Success

E_FAIL

Failure

E_OUTOFMEMORY

Insufficient memory

Remarks

This method returns a pointer to an enumerator object that supports the IEnumDMO interface. The application uses the IEnumDMO interface to enumerate over the set of DMOs that match the search criteria.

Requirements

Header

dmo.h

Library

msdmo.lib

See Also

Reference

DMO Functions
IEnumDMO
DMO_ENUM_FLAGS
DMO_PARTIAL_MEDIATYPE
DMO GUIDs