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An extension derived from IViewObject2 to provide support for:
- Enhanced, flicker-free drawing for non-rectangular objects and transparent objects
- Hit testing for non-rectangular objects
- Control sizing
Inheritance
The IViewObjectEx interface inherits from IViewObject2. IViewObjectEx also has these types of members:
Methods
The IViewObjectEx interface has these methods.
| IViewObjectEx::GetNaturalExtent Provides sizing hints from the container for the object to use as the user resizes it. |
| IViewObjectEx::GetRect Retrieves a rectangle describing a requested drawing aspect. |
| IViewObjectEx::GetViewStatus Retrieves information about the opacity of the object, and what drawing aspects are supported. |
| IViewObjectEx::QueryHitPoint Indicates whether a point is within a given aspect of an object. |
| IViewObjectEx::QueryHitRect Indicates whether any point in a rectangle is within a given drawing aspect of an object. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | ocidl.h |