Want to pass 2D integer array from VB 6.0 to LabView (v 8.0) DLL

Question

I was able to pass 1D arrays from VB 6.0 to LabView 8.0 with no problem.  I checked the literature for help regarding 2D arrays and found
scant help unless it was for VB.NET, C or single dimensional arrays.  Thanks.
I wrote a simple test VB program to pass 2D arrays shown below after which I get a memory crash:
Private Declare Sub Test2D Lib _
    "C:\Documents and Settings\Owner\My Documents\builds\Test2DArray\Test2DArray\Test2DArray.DLL" _
    Alias "Test2darray" (ByRef varInArray As Variant, ByRef varOutArray As Variant)
Private Sub cmdStart_Click()
    On Error GoTo handle_error
    Dim intInArray(8, 8) As Integer
    Dim intOutArray(8, 8) As Integer
    Dim varInArray As Variant, varOutArray As Variant
    Dim i As Long, j As Long, k As Integer
    For i = 0 To 7
        k = i * 8
        For j = 0 To 7
            intInArray(i, j) = k + j
        Next j
    Next i
    varInArray = intInArray
    varOutArray = intOutArray
    Test2D varInArray, varOutArray
    Exit Sub
handle_error:
    MsgBox Err.Description, , ""
End Sub
In the Labview DLL I have a definition of the exported function call as:
void Test2darray(TD1Hdl * InArray, TD1Hdl * OutArray)
(in the Labview DLL I take the input array, add 1 to each of the elements and then stuff it into the output)

Answer 1

jd162,
The following discussing forum may help out:Pass array to "Labview 7" DLL in Visual Basic . Let us know if this helps out at all.
Chris C
Chris Cilino
National Instruments
LabVIEW Product Marketing Manager
Certified LabVIEW Architect