>>>>I have a COM server that has a method that returns a pointer to float in a Variant.
>>>>
>>>>The pointer to float is actually an array of 32-bit floats.
>>>>
>>>>Is there some way that I can get access to that array in VFP?
>>>>
>>>>Thanks,
>>>>Jim
>>>
>>>You may need to use COMARRAY() to specify if it is zero based etc.
>>>
>>>ie:
>>>

>>>local array aMyArray[1] 
>>>COMARRAY(oMyCOM,11)
>>>oMyCOM.MyMethod(@aMyArray)
>>>

Cetin
>>
>>Cetin,
>>
>>thanks for your quick reply.
>>
>>The COM object method returns the pointer like so:
>>
>>pArray = oMyCom.GetDataArray()
>>
>>How can COMARRAY help me with this?
>>
>>Thanks,
>>Jim
>
>A follow-up.
>
>If I connect to the COM server using a C++ client, pArray is the address of the array in the COM server. I can view and manipulate all of the elements in the array.
>
>I would like to be able to do the same thing with a VFP COM client.
>
>How can I do this?
>
>There is a lot of VFP documentation about how to write a COM server, but very little about COM clients and passing data between the client and server.
>
>Thanks,
>Jim

Some additional thoughts:

1. oMyCOM.GetDataArray() actually returns a variant. The address of the array is contained in the pfltVal member. So, in my C++ client, I can get access to the array with:

pData = (oMyCOM.GetDataArray()).pfltVal

2. The VFP documentation explains about the need to use the Comarray() function when passing an array TO a COM object. But, says nothing about how to receive an array from a COM object.

If I try in VFP:

LOCAL vaData AS Variant
vaData = oMyCOM.GetDataArray()
pData = vaData.pfltVal

The debugger shows vaData = .NULL. and the Type is "N"

and I get an error message saying "VADATA is not an object."

Thanks for your help.
Jim