GEOS SDK TechDocs
|
| 
3 VisClass Instance Data
| 
3.2 VI_typeFlags
The
VI_bounds
field is a
Rectangle
structure containing four values: The left, top, right, and bottom outer bounds of the object. The bounds of a visible object describe the object to the rest of the world: the input manager and UI use them to determine when the mouse pointer is over the object, and the object's visible parent (if any) uses them to figure out the total geometry of all its children.
The
VI_bounds
field is very important to nearly all visible objects. In fact, Positioning Visible Objects
is devoted to this field and how it is used. For full information on visible bounds, see that section.
GEOS SDK TechDocs
|
| 3 VisClass Instance Data
| 3.2 VI_typeFlags