>Hi all,
>
>Is this possible in VFP? I am not sure if this is valid or not. The API function did not update the array elements.
>
>

>declare long APIGetEnv in APIDll long
>declare long APIFunction in APIDll long pPointer, double @ dArray
>dimension dArray[2]
>dArray=0.0
>nPtr=APIGetEnv()
>nError=APIFunction(nPtr,@dArray) && does not update the array elements!!!
>* function returns nError <> 0 which means success.
>

>
>I checked out the samples in VFP8 on passing arrays to API which converts the array to a string of Hex representations of the arrays. I need to pass the array to be updated with values.

Ramil,

Samples are correct. You've to build string of array items and pass it to DLL. After call to DLL you've to convert items back from string using Re: How to read a 32bit float from disk Message #569663 or DoubleToNum() function from Heap allocation class File #9482.

declare long APIGetEnv in APIDll long
declare long APIFunction in APIDll long pPointer, string @ 
lcArray = REPLICATE(CHR(0), 8*2)
nPtr=APIGetEnv()
nError=APIFunction(nPtr, @lcArray)
DIMENSION dArray[2]
dArray[1] = bton(SUBSTR(lcArray,1,8) 
dArray[2] = bton(SUBSTR(lcArray,9,8))