| SHMMAP and structures [message #49740] |
Wed, 09 August 2006 12:38 |
Mike Wallace
Messages: 25
Registered: May 2006
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Junior Member |
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Hi Everyone,
In the documentation for SHMMAP, I ran across this following regarding
the kind of data that can be used in SHMMAP: "The array can be of any
type except pointer, object reference, or string. (Structure types are
allowed as long as they do not contain any pointers, object references,
or strings.)"
This is the only place where I read of using a structure with SHMMAP.
Has anyone ever mapped structures before? If so, can you mix and match
the data types within the structure or are you restricted to using only
one data type in the structure? Also, how is the data laid out in
memory if you write out a structure this way? (I'm interested in the
data layout because a non-IDL program needs to use the memory space as
well.)
I know that all these questions are ones that I could answer myself if I
had enough time to play with the commands, but I don't have enough time
at the moment to do a thorough investigation, but I was hoping that
someone out there may have worked with this before. TIA,
-Mike
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