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CMediaPosition::Invoke

  • Article

Provides access to properties and methods exposed by an object.

HRESULT Invoke(
DISPID dispidMember,
REFIID riid,
LCID lcid,
WORD wFlags,
DISPPARAMS * pdispparams,
VARIANT * pvarResult,
EXCEPINFO * pexcepinfo,
UINT * puArgErr );

Parameters

  • dispidMember
    Identifier of the member. Use CMediaPosition::GetIDsOfNames or the object's documentation to obtain the dispatch identifier.
  • riid
    Reserved for future use. Must be IID_NULL.
  • lcid
    Locale context in which to interpret arguments.
  • wFlags
    Flags describing the context of the CMediaPosition::Invoke call.
  • pdispparams
    Pointer to a structure containing an array of arguments, an array of argument dispatch IDs for named arguments, and counts for the number of elements in the arrays.
  • pvarResult
    Pointer to where the result is to be stored, or NULL if the caller expects no result.
  • pexcepinfo
    Pointer to a structure containing exception information.
  • puArgErr
    Index of the first argument, within the rgvarg array, that has an error.

Return Values

Returns DISP_E_UNKNOWNINTERFACE if riid is not IID_NULL. Returns one of the error codes from CMediaPosition::GetTypeInfo if the call fails. Otherwise, returns the HRESULT from the call to IDispatch::Invoke.

 Last updated on Tuesday, July 13, 2004

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