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ARRAY() command in Visual Basic
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General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Miscellaneous
Thread ID:
00518091
Message ID:
00518306
Views:
10
>>>I am converting a Visual Basic routine to VFP. I need to send four parameters to an object oriented application. The Visual Basic routine uses the ARRAY() command like this:
>>>
>>>myParams=ARRAY("0p0","0p0","18p0","18p0")
>>>myTFrame.GeometricBounds=myParams
>>>
>>>When I use the DIMENSION command to create a 1 dimension array, and then populate the array with the values given above, the application chokes. Is there a way in VFP to mimic the ARRAY() command in VB?
>>>
>>>Thanks in advance...
>>>
>>>John Dennis
>>
>>John,
>>Unfortunately, no. The ARRAY() function creates a SAFEARRAY. For a defintion of what a SAFEARRAY is, check out this MSDN topic. http://msdn.microsoft.com/library/psdk/automat/chap7_9ntx.htm
>>
>>IAC, VFP does not create SAFEARRAYs so you can not assign a VFP array to something that is supposed to be an array property and have it work. If there was a method that took an array as a parameter, it would work because the array would be converted to a SAFEARRAY going through the COM barrier. But that doesn't look like the case here.
>
>>
>>AFAIK, unless there is another interface to this property (e.g. method to set it), you won't be able to use this property with VFP.
>
>Larry,
>
>Will Ed's Constructor for SafeArrays work?

Hi George,
I think I tried something like this and it didn't work. I used SafeArrayCreateVector, got a valid pointer to it, pupulated it and tried to assign the ADSI IADsContainer Filter property with no joy.

Maybe it was a problem with ADSI so this technique may work in this case.
Larry Miller
MCSD
LWMiller3@verizon.net

Accumulate learning by study, understand what you learn by questioning. -- Mingjiao
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