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From: adam on 16 Apr 2008 09:56
Recently I have discovered that I need to remove all instances of the
keyframePlayer modifier in a stopMovie function, or else when my projector is
closed an error message appears.

An on stopMovie handler is a good place to put Lingo that performs cleanup
tasks--such as closing resource files, clearing global variables, erasing
fields, and disposing of objects--when the movie is finished.

I come from a Flash background, and am just now starting to learn about how
memory is handled. Do I need to delete objects and clear variables in the
stopMovie function as well? Is there a rule of thumb to follow? I am not
getting an error when I close the projector now? am I safe?


From: Chunick on 16 Apr 2008 15:08
you can use either:
clearGlobals()
or
_global.clearGlobals()
or for Javascript only (undocumented)
_system.gc()

depending on the version of Director. That will clear all global variables.
Other than that, you should kill all objects such as script created members,
Xtras and timeOut objects.

to kill an individual global variable:
global gSomeVar
..
...
gSomeVar = VOID

ie.
mem = new(#bitmap)
or mem = _movie.newMember(#bitmap)
..
...
mem.erase()

fileObj = xtra("FileIO").new()
or fileObj = new(xtra "FileIO")
..
...
fileObj = 0

timeOut("timeout object").new(1000, #someTimeoutHandler, me)
or timeOut().new("timeout object", 1000, #someTimeoutHandler, me)
..
...
timeOut("timeout object").forget()

all these objects can be killed where they were created locally and unless
you're using global variables, don't need to be killed in the on stopMovie
handler... the clearGlobals() is a catchall that will do the trick.

further reading:
clearAsObjects()
clearCache
unload()
unloadMember()
unloadMovie()

From: adam on 16 Apr 2008 15:15
Thanks for your response; this is exactly what I was looking for.
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