Component object model interface to C++ type conversion
US6721942B1 · kind B1 · utility
21Cited by
4References
21Claims
0Family size
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Inventor
Key dates
| Filing date | Mar 31, 2000 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Mar 31, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/449
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods for converting from a COM interface pointer to an underlying C++ object are described in various embodiments. In the various embodiments, classes are constructed in support of the underlying C++ object. The classes are used to enforce rules safely convert a COM interface pointer. One rule is that a COM interface to be converted cannot be marshaled. A second rule is that an object requesting the C++ object must have legal access to the COM interface (for example, the same execution unit). A third rule is that the object type of the COM interface must be in the inheritance hierarchy of the C++ object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.