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passing by reference in vb6

Posted on 2004-08-04
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Last Modified: 2011-10-03
Hi all,
  Can anyone tell me how to pass an integer array by reference in vb6? I have a dll written in fortran, and I need to pass an integer array to it by reference. I would really appreciate an example. Thank you.

paul
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Question by:struggling_coder_3203
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5 Comments
 
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Expert Comment

by:cookre
ID: 11717324
ByRef
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LVL 55

Expert Comment

by:Jaime Olivares
ID: 11717357
declare your function as:

YourFunc(ByRef  anArray() as integer)
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Accepted Solution

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cookre earned 500 total points
ID: 11717388
Private Declare Function apiRegQueryInfoKey Lib "advapi32.dll" _
        Alias "RegQueryInfoKeyA" (ByVal hKey As Long, _
        ByVal lpClass As String, ByRef lpcbClass As Long, _
        ByVal lpReserved As Long, ByRef lpcSubKeys As Long, _
        ByRef lpcbMaxSubKeyLen As Long, _
        ByRef lpcbMaxClassLen As Long, _
        ByRef lpcValues As Long, _
        ByRef lpcbMaxValueNameLen As Long, _
        ByRef lpcbMaxValueLen As Long, _
        ByRef lpcbSecurityDescriptor As Long, _
        ByRef lpftLastWriteTime As FILETIME) As Long
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by:cookre
ID: 11717403
One of these days I'll remember to refresh to avoid cross posts...
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Expert Comment

by:Éric Moreau
ID: 11717895
>> I have a dll written in fortran, and I need to pass an integer array to it by reference

If the dll is built to receive the array byval, you cannot change it.

Otherwise, you simply pass your array variable.
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