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Dynamically generate an ODBC DSN


Class object that can be compiled or copied and pasted into your application that will dynamically create ODBC DSN's for you.

Original Author: Royce Powers

Inputs

DSN Name, Server, Database, DSN Type, UserID and Password

Returns

0 if success, OSBC DSN is created

API Declarations

Declare Function SQLAllocConnect Lib "odbc32.dll" (ByVal henv _
As Long, phdbc As Long) As Integer
Declare Function SQLDisconnect Lib "odbc32.dll" (ByVal hdbc As _
Long) As Integer
Declare Function SQLConnect Lib "odbc32.dll" (ByVal hdbc As _
Long, ByVal szDSN As String, ByVal cbDSN As Integer, ByVal szUID As _
String, ByVal cbUID As Integer, ByVal szAuthStr As String, ByVal _
cbAuthStr As Integer) As Integer
Declare Function SQLFreeEnv Lib "odbc32.dll" (ByVal henv As _
Long) As Integer
Declare Function SQLFreeConnect Lib "odbc32.dll" (ByVal hdbc _
As Long) As Integer
Declare Function SQLError Lib "odbc32.dll" (ByVal henv As _
Long, ByVal hdbc As Long, ByVal hstmt As Long, ByVal szSqlState As _
String, pfNativeError As Long, ByVal szErrorMsg As String, ByVal _
cbErrorMsgMax As Integer, pcbErrorMsg As Integer) As Integer
Declare Function SQLConfigDataSource Lib "ODBCCP32" _
(ByVal hwndParent As Long, ByVal fRequest As Long, _
ByVal lpszDriver As String, ByVal lpszAttributes As String) As Long

Code

IN MODULE (.BAS)
Option Explicit
Public Const vbAPINull As Long = 0&
Private Const SQL_SUCCESS As Long = 0
Private Const SQL_SUCCESS_WITH_INFO As Long = 1
Declare Function SQLAllocConnect Lib "odbc32.dll" (ByVal henv _
As Long, phdbc As Long) As Integer
Declare Function SQLDisconnect Lib "odbc32.dll" (ByVal hdbc As _
Long) As Integer
Declare Function SQLConnect Lib "odbc32.dll" (ByVal hdbc As _
Long, ByVal szDSN As String, ByVal cbDSN As Integer, ByVal szUID As _
String, ByVal cbUID As Integer, ByVal szAuthStr As String, ByVal _
cbAuthStr As Integer) As Integer
Declare Function SQLFreeEnv Lib "odbc32.dll" (ByVal henv As _
Long) As Integer
Declare Function SQLFreeConnect Lib "odbc32.dll" (ByVal hdbc _
As Long) As Integer
Declare Function SQLError Lib "odbc32.dll" (ByVal henv As _
Long, ByVal hdbc As Long, ByVal hstmt As Long, ByVal szSqlState As _
String, pfNativeError As Long, ByVal szErrorMsg As String, ByVal _
cbErrorMsgMax As Integer, pcbErrorMsg As Integer) As Integer
Declare Function SQLConfigDataSource Lib "ODBCCP32" _
(ByVal hwndParent As Long, ByVal fRequest As Long, _
ByVal lpszDriver As String, ByVal lpszAttributes As String) As Long
In Class (.CLS)
Option Explicit
Public Enum peDSN_OPTIONS
ODBC_ADD_DSN = 1
ODBC_CONFIG_DSN = 2
ODBC_ADD_SYS_DSN = 4
ODBC_CONFIG_SYS_DSN = 5
End Enum
Public Function RegisterDataSource(iFunction As peDSN_OPTIONS, sDSNName As String, sServerName As String, sDatabasename As String, sUserID As String, sPassword As String) As Integer
Dim sAttributes As String
Dim iRetVal As Integer
  


sAttributes = "DSN=" & sDSNName _
  & Chr$(0) & "Description=SQL Server on server " & sServerName _
  & Chr$(0) & "SERVER=" & sServerName _
  & Chr$(0) & "Database=" & sDatabasename _
  & Chr$(0) & Chr$(0)
iRetVal = SQLConfigDataSource(vbAPINull, iFunction, "SQL Server", sAttributes)
End Function

About this post

Posted: 2002-06-01
By: ArchiveBot
Viewed: 103 times

Categories

Visual Basic 6

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