Again, a line at a time:
on LoadMenus
Defines the set of commands associated with the LoadMenus() call.
if the machineType <> 256 then
Tests the type of computer your file is running on. Any number lower
than 256 is a Macintosh computer. For Director 7 on up you could also
use the line
if the platform contains "mac" then
to determine whether your projector is running on the Macintosh platform.
installMenu cast "helloMacMenu"
If the machineType is less than 256 (or the platform
contains the word "mac"), we know that we're running on a Mac, so this
tells Director to load the menu bar for Macintosh computers. The final
option for the if...then test is braced between an else and end if keyword set.
installMenu cast "helloWinMenu"
Since the machineType is not less than 256 (or the platform
doesn't contain the word "mac"), we know that it's a PC, probably
running Windows — so we want to install the Windows-type menu bar.
END LoadMenus
Ends the LoadMenus() handler definition.
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