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ITypeInfo::GetDllEntry method (oaidl.h)

  • Artykuł

Retrieves a description or specification of an entry point for a function in a DLL.

Syntax

HRESULT GetDllEntry(
  [in]  MEMBERID   memid,
  [in]  INVOKEKIND invKind,
  [out] BSTR       *pBstrDllName,
  [out] BSTR       *pBstrName,
  [out] WORD       *pwOrdinal
);

Parameters

[in] memid

The ID of the member function whose DLL entry description is to be returned.

[in] invKind

The kind of member identified by memid. This is important for properties, because one memid can identify up to three separate functions.

[out] pBstrDllName

If not null, the function sets pBstrDllName to the name of the DLL.

[out] pBstrName

If not null, the function sets pBstrName to the name of the entry point. If the entry point is specified by an ordinal, this argument is null.

[out] pwOrdinal

If not null, and if the function is defined by an ordinal, the function sets pwOrdinal to the ordinal.

Return value

This method can return one of these values.

Return code Description
S_OK
Success.
E_INVALIDARG
One or more of the arguments is not valid.
E_OUTOFMEMORY
Insufficient memory to complete the operation.

Remarks

The caller passes in a member ID, which represents the member function whose entry description is desired. If the function has a DLL entry point, the name of the DLL that contains the function, as well as its name or ordinal identifier, are placed in the passed-in pointers allocated by the caller. If there is no DLL entry point for the function, an error is returned.

If the type description inherits from another type description, this function is recursive to the base type description, if necessary, to find the item with the requested member ID.

The caller should use SysFreeString to free the BSTRs referenced by pBstrName and pBstrDllName.

Requirements

Requirement Value
Target Platform Windows
Header oaidl.h

See also

ITypeInfo