Question : VBA for Excel - Calling a function from a dll - hanging - suggestions?

Hi All,

I am trying to call a function from a dll in VB for excel. When I call the function, it crashes excel. I'm not sure what I am doing wrong. I am new to calling functions from dlls. Any suggestions would be greatly appreaciated.

I have attached my VB code.

Also, I'll include some exerpts from the documentation of the function in the dll because I think my problem may lie in the fact that I'm not converting or passing my variables properly.

The purpose of the function is to retrieve a single value or array of values given the input parameters.
long CR_VBGetSingleRes(const char* A,
const char* B,
int C,
float* D,
int E,
const char* F,
const char* G)

D = address of an array of 32 bit floating point numbers to be populated with the results
F = must be a Null terminated character string.
G = also must be a null terminated character string (but only when a condition is met that is not met in the data I'm trying to retrieve at the moment.)

         
           
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          Public Declare Function CR_VBGetSingleRes Lib "DResult" (ByVal A As String, _
    ByVal B As String, _
    ByVal C As Long, _
    ByRef D() As Long, _
    ByVal E As Long, _
    ByVal F As String, _
    ByVal G As String _
) As Long



Function CallCResultsFunction()

Dim A As String
Dim B As String
Dim C As Long
Dim D() As Long
Dim E As Long
Dim F As String
Dim G As String

'set values for variables
A = "C:\doe22\"
B = "C:\DOE-2_Output\SFM-w10-v75-hAC-t1-cCAv-mRB-HV-SFDuctSeal-40pct-12pct - Baseline Design"
C = 3005006
E = 1
F = "2005"

'Now call function and send parameters
Call CR_VBGetSingleRes(A, B, C, D, E, F, G)


Debug.Print D(1)


End Function

           
         

Answer : VBA for Excel - Calling a function from a dll - hanging - suggestions?

Adtran to UC560 T1 module should not need a T1 crossover.
Basically, we have 3 choices for T1 drop to a router:
1. Standard straight-through CAT5 patch cable - most common DTE-DCE
2. T1 crossover as JRSCGI shows above - DTE-DTE (i.e. routers back-back)
3. Rollover cable (usually flat, silver cable with Rj45 ends) - sometimes required from DTE to DCE if wired Rj48X