On Jul 11, 2008, at 5:38 AM, Cloud Strife wrote:
I am wondering whether I could set this property to NSColor or
CGColor
inorder to change the layer color dynamically. For example, If I
want to
change a Green layer to a red one from time to time, could anyone
give me a
guidance?
CGColorRefs are Core Foundatation data types, and therefore analogous
to NSObject decedents, thus you can typecast a CGColorRef to an id and
assign it as a fromValue or toValue of a CAAnimation without needing
to do any kind of conversion. Note however that NSColor and CGColorRef
are NOT toll-free bridged, therefore it is an error to assign an
NSColor where a CGColorRef is expected (or vise versa).
--
David Duncan
Apple DTS Animation and Printing
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