Subject:
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Re: Spirit.ocx in VC++
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 5 Mar 2000 00:54:22 GMT
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Original-From:
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Len Holgate <Len.Holgate@dial+ihatespam+.pipex.com>
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Viewed:
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827 times
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Looking at the docs it seems the UploadDatalog method returns a VB safe
array as a variant if it succeeds. You should be able to find details of
handling the type if you search for safe array or VT_ARRAY in the help...
The variant is a kludge for loosely typed languages, it's basically just a
union of all valid types with an additional field that determines the actual
type. It's handy to have in a loosely typed, late binding environment and a
pain in C++ :)
----- Original Message -----
From: iant <iant@libero.it>
To: <lego-robotics@crynwr.com>
Sent: Saturday, March 04, 2000 1:49 PM
Subject: Spirit.ocx in VC++
> Hi All,
>
> I'm trying to use Spirit.ocx control within a VC++ program.
> Polling sensors and motors is quite easy, but I am completely
> stuck in uploading the datalog.
>
> The problem is that UploadDatalog method returns a "Variant"
> data type, and I don't know how to deal with this data type
> in VC++. (To be honest I hardly understand the need for such
> a data type, but this is another issue... ;)
>
> Is there anyone that can help me?
>
> Thanks in advance,
>
> Antonio
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Message has 1 Reply:
 | | Re: Spirit.ocx in VC++
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| Hi Len, (...) Exactly. (...) Actually, I've been digging into the MSDN for quite a long time without any significant result. :( It seems that the UploadDatalog method does not work as described in the Lego docs. Since spirit.ocx was thought for VB, (...) (25 years ago, 5-Mar-00, to lugnet.robotics)
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Message is in Reply To:
| | Spirit.ocx in VC++
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| Hi All, I'm trying to use Spirit.ocx control within a VC++ program. Polling sensors and motors is quite easy, but I am completely stuck in uploading the datalog. The problem is that UploadDatalog method returns a "Variant" data type, and I don't (...) (25 years ago, 4-Mar-00, to lugnet.robotics)
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