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Subclass any COM object in VFP
Message
De
11/12/2000 16:31:56
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
COM/DCOM et OLE Automation
Divers
Thread ID:
00451752
Message ID:
00451887
Vues:
48
>>>Erik, that's cool!!
>>>
>>>Here is my analysis what's going on if you run it, obtained with good old SET DOHISTORY ON. :) And my comments just to clarify the sequence for myself in the first place. :)
>>
>>Yeah, gets kind of confusing if you think about it too much.
>>
>>In my book, THIS_Access has taken the place of COMPILE at runtime as the trippiest VFP feature.
>>
>>Note- this works over COM as well- your wrapper can be its own COM object, but it will not be early bindable...
>
>Erik,
>Does _Access really work over COM? I know _Assign doesn't so I assumed (didn't want to put in the time to test *s*) _Access was the same.

Hmm good question. Prior to your posting, I had only tested with a VFP client calling the COM object, and it works like a charm.

But I just tested from VB, and on the PEMs that aren't defined in the typelib, it chokes with "Property not defined". I guess this is kind of telling about the difference in how VB and VFP call COM objects.

Note that the Access method _is_ running. For example, I can instanciate the wrapper as a COM object and immediately check the value of oXML.oDOM.Async, and it says 'true'. If the oDOM_Access was not running, I would have gotten "oDOM is not an object".
Erik Moore
Clientelligence
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