User Guide

236 Chapter 12: Methods
// JavaScript syntax
t1 = member("Scene").newTexture("Rough", symbol("fromCastMember"),\
member("Cedar"));
sprite(5).camera.addOverlay(t1, point(220, 220), 0);
member("Scene").camera[1].addOverlay(t1, point(20, 20), 45);
See also
removeOverlay
addProp
Usage
list.addProp(property, value)
addProp list, property, value
Description
Property list command; for property lists only, adds a specified property and its value to a
property list.
For an unsorted list, the value is added to the end of the list. For a sorted list, the value is placed in
its proper order.
If the property already exists in the list, both Lingo and JavaScript syntax create a duplicate
property. You can avoid duplicate properties by using the
setaProp() command to change the
new entry’s property.
This command returns an error when used with a linear list.
Parameters
property
Required. The property to add to the list.
value Required. The value of the property to add to the list.
Example
This statement adds the property named kayne and its assigned value 3 to the property list
named
bids, which contains [#gee: 4, #ohasi: 1]. Because the list is sorted, the new entry is
placed in alphabetical order:
bids.addProp(#kayne, 3)
The result is the list [#gee: 4, #kayne: 3, #ohasi: 1].
This statement adds the entry
kayne: 7 to the list named bids, which now contains [#gee: 4,
#kayne: 3, #ohasi: 1]. Because the list already contains the property
kayne, Lingo creates a
duplicate property:
bids.addProp(#kayne, 7)
The result is the list [#gee: 4, #kayne: 3, #kayne: 7, #ohasi: 1].