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DMOGetTypes

A version of this page is also available for

Windows Embedded CE 6.0 R3

4/8/2010

This function retrieves the media types registered for a DMO.

Syntax

HRESULT DMOGetTypes(
  REFCLSID clsidDMO,
  unsigned long ulInputTypesRequested,
  unsigned long* pulInputTypesSupplied,
  DMO_PARTIAL_MEDIATYPE* pInputTypes,
  unsigned long ulOutputTypesRequested,
  unsigned long* pulOutputTypesSupplied,
  DMO_PARTIAL_MEDIATYPE* pOutputTypes
);

Parameters

  • clsidDMO
    Class identifier (CLSID) of the DMO.
  • ulInputTypesRequested
    Size of the array passed in the pInputTypes parameter.
  • pulInputTypesSupplied
    Pointer to a variable that receives the number of DMO_PARTIAL_MEDIATYPE structures in pInputTypes that the function fills.
  • pInputTypes
    Pointer to a caller-allocated array of DMO_PARTIAL_MEDIATYPE structures. The size of the array is given in the ulInputTypesRequested parameter. The function fills the array with the input types registered for the DMO.
  • ulOutputTypesRequested
    Size of the array passed in the pOutputTypes parameter.
  • pulOutputTypesSupplied
    Pointer to a variable that receives the number of DMO_PARTIAL_MEDIATYPE structures in pOutputTypes that the function fills.
  • pOutputTypes
    Pointer to a caller-allocated array of DMO_PARTIAL_MEDIATYPE structures. The size of the array is given in the ulOutputTypesRequested parameter. The function fills the array with the DMO output types registered for the DMO.

Return Value

Returns an HRESULT value. Possible values include the following.

Value Description

S_FALSE

Array too small

S_OK

Success

E_FAIL

Failure

Remarks

If one of the arrays is too small to hold all of the registered types, the function fills the array but returns S_FALSE.

If the DMO did not register any media types, the function returns S_OK and sets *pulInputTypesSupplied and *pulOutputTypesSupplied to zero.

Requirements

Header dmo.h
Library msdmo.lib
Windows Embedded CE Windows CE .NET 4.1 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also

Reference

DMO Functions
DMO_PARTIAL_MEDIATYPE