Could anyone point out why this is not working in Mathematica 8:
DynamicModule[{x = Pink},
Row[
{Style["Hello", x],
Mouseover[
x = Green; "World",
x = Blue; "World"]}]]
What I expect is to see the color of "Hello" change when I mouse over "World". What I am getting is a pink "Hello" that never changes color.
A quick check shows that Mouseover
evaluates all the expressions inside of it when you first launch it:
Mouseover[Print["One"]; 1, Print["Two"]; 2]
The idiomatic way of actually making the Mouseover
modify the values of x is to use MouseAnnotation
. Mr. Wizard's answer describes how to achieve this.