vcdimager: Selection List
1.7.3.2 Selection List
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"Selection lists" can be used to offer a user selection based on numeric
(<NUMERIC>) input or--if available--pointer device based selection,
while showing a play item.
All of the navigation units available in a play list (<NEXT>,
<PREVIOUS>, <RETURN> can be used in a selection list. But in contrast
to a play list, there are additional features: menu selection (mentioned
above), random selection, default target (<DEFAULT>), timeout target and
looping.
As with play lists, the navigation is associated with the entire list
id. Thus, navigation is not updated if an entry passes through to the
next entry; only when passing from one list id to another.
Hot-spots
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The Video CD format allows for so-called hot-spots in selection lists,
which are used to define areas on the screen for selection targets,
which can be used for pointer device based selection in addition to the
<NUMERIC> input, and/or for highlighting of areas on the screen on
selection.
The coordinate system used in menu-selection areas divides the entire
viewable part of the screen into coordinates along the x and y axes from
(x1,y1)=(0,0) in the upper left to the lower right (x2,y2)=(255,255),
regardess the screen resolution or aspect ratio.
Alas menu-selection areas and menu highlighting, however useful may
not supported among playing devices.
Multi Default Selection List
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"Multi default selection lists" are a special variant of selection lists
which allow for defining different <DEFAULT> key targets, depending on
which section of the play item the playback is currently in. The
various sections are defined by using entry points which mark the
boundaries.
Info Catalog
vcdimager: Play List
vcdimager: PBC Lists
vcdimager: End List