| callable IDL and structures [message #30109] |
Mon, 08 April 2002 11:23 |
Sebastian Moeller
Messages: 7
Registered: April 2002
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Junior Member |
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Hi there IDL-experts,
at my place of work we have a C++ project which is to use IDL for user
definable output. As we are somewhat bound to windows (but do not really
like activeX) we decided that callable IDL might be the way to go. We
intended to use structures to pass data to IDL. The strange thing is
now, the structures we pass show their tags if we invoke "help,
MyStructure ,/STRUCTURE". We see all tag names and types and content as
defined in the C++ project. But every command that tries to access the
data in the structure from IDL (e.g. tmp= MyStructure.MyTag1 with MyTag1
is the first element of the structure) just tells that MyTag1 is not
defined in MyStructure.
Beeing challenged in that way we found that tmp= MyStructure.(n) with n
beeing the "address" of the tag, actually gives us access to the data.
"MyStructure.[0]" by the way does not work. But as this behavior is not
documented anywhere (well, at least not where we searched) we assume it
is rather daring to go relay on the stability of this feature for the
future. (Heck, RSI even changed the behavior of SIZE() between 5.3 and
5.4, without mentioning in the what's new in 5.4. So maybe stability is
relative anyhow ;)...)
So after too long a story, is there anybody out there who knows where we
went wrong or whether this might be considered a bug worth reporting to RSI?
Thank you very much
Sebastian Moeller
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