API calls in VB .NET

[Penavin]

Hi!

When using API calls in .NET like in VB 6 I can't obtain the same result. Actually, there are no results at all!
What is the problem?

Here are functions I tryed to use:

Private Declare Function RegOpenKeyEx Lib "advapi32" Alias "RegOpenKeyExA" _
     (ByVal hKey As Long, _
      ByVal lpSubKey As String, _
      ByVal ulOptions As Long, _
      ByVal samDesired As Long, _
      ByRef phkResult As Long) As Long

Private Declare Function RegQueryValueEx Lib "advapi32" Alias "RegQueryValueExA" _
     (ByVal hKey As Long, _
      ByVal lpValueName As String, _
      ByVal lpReserved As Long, _
      ByRef lpType As Long, _
      ByVal lpData As String, _
      ByRef lpcbData As Long) As Long

Private Declare Function RegCloseKey Lib "advapi32" _
     (ByVal hKey As Long) As Long

Thank you.

[techyspecy]

Originally posted by Penavin
Hi!

When using API calls in .NET like in VB 6 I can't obtain the same result. Actually, there are no results at all!
What is the problem?

Here are functions I tryed to use:

Private Declare Function RegOpenKeyEx Lib "advapi32" Alias "RegOpenKeyExA" _
     (ByVal hKey As Long, _
      ByVal lpSubKey As String, _
      ByVal ulOptions As Long, _
      ByVal samDesired As Long, _
      ByRef phkResult As Long) As Long

Private Declare Function RegQueryValueEx Lib "advapi32" Alias "RegQueryValueExA" _
     (ByVal hKey As Long, _
      ByVal lpValueName As String, _
      ByVal lpReserved As Long, _
      ByRef lpType As Long, _
      ByVal lpData As String, _
      ByRef lpcbData As Long) As Long

Private Declare Function RegCloseKey Lib "advapi32" _
     (ByVal hKey As Long) As Long

Thank you.

Check the API call support for .NET MSDN. They have changed the syntax for calling API's. Also you may not need to use APIs at all. They have wrapped up lot of APIs in the form of classes and most of the registry APIs are already available using .NET classes.

[PT Exorcist]

change longs to integers

[Pirate]

Originally posted by PT Exorcist
change longs to integers

I don't think so , long is long . Forget about that and use Registery class and Win32 Class . It's more more eaiser .

[Penavin]

Hi!
Yes, with Int32 is better, but I still can't obtain desired result. Function returns '2' and I am happy only with '0'