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POKeep getting error 2 (Registry path does not exist) with RegQueryValueEx in VBA
 

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  1. POKeep getting error 2 (Registry path does not exist) with RegQueryValueEx in VBA
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    <p>I'm trying to have VBA query the registry to see if an ODBC driver is installed, and I get error 2 when trying to read a key's value. I tried a simpler key/value, but no cigar.</p> <h2>Edit for Clarification</h2> <p>I am developing on a 32-bit system, but this needs to work for both 32 and 64-bit systems. What the problem is is that the call to RegOpenKeyEx works, but RegQueryValueEx returns error 2: file does not exist on my 32-bit system. My syntax appears correct, what am I doing wrong?</p> <pre class="lang-vb prettyprint-override"><code>Public Const HKEY_LOCAL_MACHINE = &amp;H80000002 Public Const ERROR_SUCCESS = 0&amp; ' Successful Public Const ERROR_FILE_NOT_FOUND = 2&amp; ' Registry path does not exist Public Const ERROR_ACCESS_DENIED = 5&amp; ' Requested permissions not available Public Const STANDARD_RIGHTS_READ = &amp;H20000 Public Const SYNCHRONIZE = &amp;H100000 Public Const KEY_ENUMERATE_SUB_KEYS = &amp;H8 Public Const KEY_NOTIFY = &amp;H10 Public Const KEY_QUERY_VALUE = &amp;H1 Public Const KEY_READ = ((STANDARD_RIGHTS_READ Or KEY_QUERY_VALUE _ Or KEY_ENUMERATE_SUB_KEYS Or KEY_NOTIFY) _ And (Not SYNCHRONIZE)) Public Const REG_SZ = 1 ' Unicode nul terminated string Public Declare Function RegOpenKeyEx Lib "advapi32.dll" Alias "RegOpenKeyExA" _ (ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As _ Long, ByVal samDesired As Long, phkResult As Long) As Long Public Declare Function RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" _ (ByVal hKey As Long, lpValueName As String, _ ByVal lpReserved As Long, lpType As Long, _ lpData As Any, lpcbData As Long) As Long Public Declare Function RegCloseKey Lib "advapi32.dll" _ (ByVal hKey As Long) As Long Sub TestRegAPI() Dim KeyName As String, handle As Long, handle2 As String 'KeyName = "SOFTWARE\ODBC\ODBCINST.INI\ODBC Drivers" KeyName = "SOFTWARE\7-Zip" r = RegOpenKeyEx(HKEY_LOCAL_MACHINE, KeyName, 0, KEY_READ, handle) If r Then MsgBox "Unable to open the specified Registry key, code " &amp; r Else 'r = RegQueryValueEx(handle, "MySQL ODBC 5.1 Driver", 0, 1&amp;, handle2, length) r = RegQueryValueEx(handle, "Path", 0, REG_SZ, handle2, length) RegCloseKey handle End If End Sub </code></pre>
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    1. COI am not familiar with VB. Are backslashes required to be escaped in VB string literals?
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      1. POKeep getting error 2 (Registry path does not exist) with RegQueryValueEx in VBA
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    2. COAre you running on a 64 bit machine? -- http://stackoverflow.com/questions/252297/why-is-regopenkeyex-returning-error-code-2-on-vista-64bit
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    3. CO@shf301 Funny thing, actually. I'm developing on an x86 machine, and was having VBA create and use a WScript.Shell object to query the registry. That doesn't work on an x64 machine, so I looked up the Windows API.
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