DLL Exception 0xC0000005

SmartBear:



I am trying out FarPoint Spread7's DLL.  I tried to call a singe method:



 

Sub Test2

  Dim fpSpread70

  Dim SPR32D70EditHScroll

  Set fpSpread70 = Aliases.powerchart.wndAfx.AfxFrameOrView100.Afx.Afx.ORDERPOE.COrdersUIWnd.Afx.AfxWnd100.page32770.AfxWnd100.fpTabPro3230.AfxWnd100.Afx.fpSpread70

 

  Set Def_DLL = DLL.DefineDLL("spr32d70")  

  

  Call Def_DLL.DefineProc("SSGetData", vt_ui4, vt_int, vt_int, vt_lpstr, vt_int)

    

  Set Lib = DLL.Load("C:\Windows\SysWOW64\spr32d70.dll", "spr32d70")

 

  Set cellData = DLL.New("LPSTR", 256)

 

  Dim col, row, han

  col = 3

  row = 2

 

  han = fpSpread70.GetUnderlyingObject.Handle

  

  Call Lib.SSGetData(han, col, row, cellData)

  

End Sub



And I got: 



An exception occurred: 0xC0000005; class: ; description: ''

Error location:

Unit: "DLLTest\DLLTest\Script\Unit1"



I am just beginning so I may be missing something.  Any advice?