Properties with Optional Parameters Not Supported (131048)
The information in this article applies to:
- Microsoft OLE Libraries for Windows and Win32s 2.03
- Microsoft OLE Libraries, when used with:
- the operating system: Microsoft Windows NT 3.5
- the operating system: Microsoft Windows 95
This article was previously published under Q131048
Properties with optional parameters are currently not supported by the
IDispatch::Invoke implementation provided by the OLE system (DispInvoke
and CreateStdDispatch). For example, the following results in an error from
MKTYPLIB.EXE:
[propput]
void MyProperty([in] BSTR bstrValue, [in, optional] VARIANT vIndex,);
[propget]
BSTR MyProperty([in, optional] VARIANT vIndex);
Properties with non-optional parameters are allowed. For example, the
following is acceptable:
[propput] void MyProperty([in] short nIndex, [in] BSTR bstrValue);
[propget] BSTR MyProperty([in] short nIndex);
| Modification Type: | Major | Last Reviewed: | 12/3/2003 |
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| Keywords: | kbprogramming KB131048 |
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