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ITypeLib2::GetDocumentation2 method (oaidl.h)

  • Article

Retrieves the library's documentation string, the complete Help file name and path, the localization context to use, and the context ID for the library Help topic in the Help file.

Syntax

HRESULT GetDocumentation2(
  [in]  INT   index,
  [in]  LCID  lcid,
  [out] BSTR  *pbstrHelpString,
  [out] DWORD *pdwHelpStringContext,
  [out] BSTR  *pbstrHelpStringDll
);

Parameters

[in] index

The index of the type description whose documentation is to be returned. If index is -1, then the documentation for the library is returned.

[in] lcid

The locale identifier.

[out] pbstrHelpString

The name of the specified item. If the caller does not need the item name, then pbstrHelpString can be null

[out] pdwHelpStringContext

The Help localization context. If the caller does not need the Help context, then it can be null.

[out] pbstrHelpStringDll

The fully qualified name of the file containing the DLL used for Help file. If the caller does not need the file name, then it can be null.

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.
STG_E_INSUFFICIENTMEMORY
Insufficient memory to complete the operation.

Remarks

Gets information at the type library level. The caller should free the BSTR parameters.

This function will call _DLLGetDocumentation in the specified DLL to retrieve the desired Help string, if there is a Help string context for this item. If no Help string context exists or an error occurs, then it will defer to the GetDocumentation method and return the associated documentation string.

Requirements

Requirement Value
Target Platform Windows
Header oaidl.h

See also

ITypeLib2