DispGetIDsOfNames

This function uses type information to convert a set of names to DISPIDs.

At a Glance

Header file:	Oleauto.h
Windows CE versions:	2.0 and later

Syntax

HRESULT DispGetIDsOfNames(ITypeInfo* ptinfo, OLECHAR FAR* FAR * rgszNames, unsigned int cNames, DISPID FAR* rgdispid);

Parameters

ptinfo

Pointer to 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

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

Number of elements in rgszNames.

rgdispid

Pointer to an array of DISPIDs to be filled in by this function. The first identifier corresponds to the method name. Subsequent identifiers are interpreted as parameters to the method.

Return Values

One of the values obtained from the returned HRESULT and described in the following table is returned.

Value	Description
S_OK	The interface is supported.
E_INVALIDARG	One of the arguments is invalid.
DISP_E_UNKNOWNNAME	One or more of the given names were not known. The returned array of DISPIDs contains DISPID_UNKNOWN for each entry that corresponds to an unknown name.
Other return codes	Any of the ITypeInfo::Invoke errors can also be returned.

Remarks

Passing into this function any invalid and, under some circumstances, NULL pointers will result in unexpected termination of the application.

Example

This code from the Lines sample file Points.cpp implements the member function GetIDsOfNames for the CPoints class using DispGetIDsOfNames.

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