Programming With QuickTime VR

Hot Spot Types

QuickTime VR recognizes three hot spot types. Only two of those have an associated info atom: the link hot spot type and the URL hot spot type. There is no specific info atom for the undefined hot spot type, kQTVRHotSpotUndefinedType ('undf' ). However, every undefined hot spot should have a hot spot and hot spot info atom in the node information atom container.

QuickTime VR provides the following constants to specify the type of a hot spot:



 
enum {

    kQTVRHotSpotLinkType                            = 'link',

    kQTVRHotSpotURLType                             = 'url ',

    kQTVRHotSpotUndefinedType                       = 'undf'

};

Constant descriptions

k QTVRHotSpotLinkType: A link hot spot.
kQTVRHotSpotURLType: A URL (Universal Resource Locator) hot spot.
k QTVRHotSpotUndefinedType: An undefined hot spot type.

Apple Computer reserves hot spot types that consist of all lower-case letters. To avoid conflicts with possible future hot spot types defined by Apple Computer, applications that define their own hot spot types should not use all lower-case letters.