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Graphics Interchange Format  |  1996-11-15  |  95KB  |  557x515  |  4-bit (16 colors)
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OCR: Object Interface Implementation Data Interface A pointer Pointer to function 1 Function 1 Pointer to function 2 Function 2 Pointer to function 3 Function 3 Interface Implementation Interface B pointer Pointer to function 1 Function I Pointer to function 2 Function 2 Pointer to function 3 Function 3 FIGURE 2 Windows Objects can expose multiple interfaces such as Interface A and Interface B. An object's interface (its methods or member functions) is accessible through virtual tables that contain a pointer to each member function. The data that the object encapsulates is not exposed to an ob- ject user.