DispGetIDsOfNames function

Applies to: desktop apps only

Low-level helper for Invoke that provides machine independence for customized Invoke.

Syntax

HRESULT DispGetIDsOfNames(
  ITypeInfo *ptinfo,
  __in   OLECHAR **rgszNames,
  UINT cNames,
  __out  DISPID *rgdispid
);

Parameters

ptinfo

The type information for an interface. This type information is specific to one interface and language code, so it is not necessary to pass an interface identifier (IID) or LCID to this function.

rgszNames [in]

An array of name strings that can be the same array passed to DispInvoke in the DISPPARAMS structure. If cNames is greater than 1, the first name is interpreted as a method name, and subsequent names are interpreted as parameters to that method.

cNames

The number of elements in rgszNames.

rgdispid [out]

An array of DISPIDs to be filled in by this function. The first ID corresponds to the method name. Subsequent IDs are interpreted as parameters to the method.

Return value

Any of the ITypeInfo::Invoke errors can also be returned.

Examples

This code from the Lines sample file Points.cpp implements the member function GetIDsOfNames for the CPoints class using DispGetIDsOfNames. This implementation relies on DispGetIdsOfNames to validate input arguments. To help minimize security risks, include code that performs more robust validation of the input arguments.

STDMETHODIMP
CPoints::GetIDsOfNames(
      REFIID riid,
      char ** rgszNames,
      UINT cNames,
      LCID lcid,
      DISPID * rgdispid)
{
   return DispGetIDsOfNames(m_ptinfo, rgszNames, cNames, rgdispid);
}

Requirements

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Build date: 3/6/2012