Enumerate DSNs
 

Using Windows XP and Office 2003;

If you have example code on how to loop thru or enumerate the DSN's on your
local machine could you please post it?

Thanks much in advance.

Enumerate DSNs
 

Courtesy of Randy Birch

Option Explicit

Private Declare Function SQLDataSources Lib "odbc32.dll" _
(ByVal hEnv As Long, _
ByVal fDirection As Integer, _
ByVal szDSN As String, _
ByVal cbDSNMax As Integer, _
pcbDSN As Integer, _
ByVal szDescription As String, _
ByVal cbDescriptionMax As Integer, _
pcbDescription As Integer) As Long

Private Declare Function SQLAllocHandle Lib "odbc32.dll" _
(ByVal HandleType As Integer, _
ByVal InputHandle As Long, _
OutputHandlePtr As Long) As Long

Private Declare Function SQLSetEnvAttr Lib "odbc32.dll" _
(ByVal EnvironmentHandle As Long, _
ByVal dwAttribute As Long, _
ByVal ValuePtr As Long, _
ByVal StringLen As Long) As Long

Private Declare Function SQLFreeHandle Lib "odbc32.dll" _
(ByVal HandleType As Integer, _
ByVal Handle As Long) As Long

Private Const SQL_MAX_DSN_LENGTH As Long = 32
Private Const SQL_MAX_DESC_LENGTH As Long = 128
Private Const SQL_SUCCESS As Long = 0
Private Const SQL_FETCH_NEXT As Long = 1
Private Const SQL_NULL_HANDLE As Long = 0
Private Const SQL_HANDLE_ENV As Long = 1
Private Const SQL_ATTR_ODBC_VERSION As Long = 200
Private Const SQL_OV_ODBC3 As Long = 3
Private Const SQL_IS_INTEGER As Long = (-6)

Private Sub GetUserSystemDSN()
Dim hEnv As Long
Dim sServer As String
Dim sDriver As String
Dim nSvrLen As Integer
Dim nDvrLen As Integer
Dim lstDSNs As String

If SQLAllocHandle(SQL_HANDLE_ENV, _
SQL_NULL_HANDLE, hEnv) < 0 Then

If SQLSetEnvAttr(hEnv, _
SQL_ATTR_ODBC_VERSION, _
SQL_OV_ODBC3, _
SQL_IS_INTEGER) < 0 Then

sServer = Space$(SQL_MAX_DSN_LENGTH)

Do While SQLDataSources(hEnv, _
SQL_FETCH_NEXT, _
sServer, _
SQL_MAX_DSN_LENGTH, _
nSvrLen, _
sDriver, _
SQL_MAX_DESC_LENGTH, _
nDvrLen) = SQL_SUCCESS

lstDSNs = lstDSNs & Left$(sServer, nSvrLen) & vbNewLine

sServer = Space$(SQL_MAX_DSN_LENGTH)

Loop

End If 'If SQLSetEnvAttr

Call SQLFreeHandle(SQL_HANDLE_ENV, hEnv)

End If 'If SQLAllocHandle

MsgBox lstDSNs

End Sub

--
---
HTH

Bob

(there's no email, no snail mail, but somewhere should be gmail in my addy)



"XP" wrote in message
...
Using Windows XP and Office 2003;

If you have example code on how to loop thru or enumerate the DSN's on
your
local machine could you please post it?

Thanks much in advance.

Enumerate DSNs
 

"XP" wrote:

Using Windows XP and Office 2003;

If you have example code on how to loop thru or enumerate the DSN's on your
local machine could you please post it?

Thanks much in advance.

You can find a VBScript sample he

http://www.microsoft.com/technet/scr...5/hey0725.mspx

You can run it from VBA, you only need to replace WScript.Echo with
Debug.Print.

Hope this helps.

--
urkec