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Windows NT login info in VB

Posted on 2002-05-09
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Last Modified: 2012-05-04
Is there any way to retrieve Current Windows NT login info in VB
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Question by:nrkrishna
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Expert Comment

by:cquinn
ID: 6999519
What info are you looking for - Username is easy:


'Retrieve a network login ID
Declare Function WNetGetUser Lib "mpr" Alias "WNetGetUserA" (ByVal lpName As String, ByVal lpusername As String, lpnLength As Long) As Long


Function GetUser() As String
Dim ReturnCode As Integer
Dim UserName As String
Dim lp As String
    Dim size As Long
    GetUser = "Nonetwrk"
    UserName = String$(255, 0)
    size = Len(UserName)
    ReturnCode = WNetGetUser&(lp, UserName, size)
    If ReturnCode = 0 Then
        While Asc(Mid$(UserName, size, 1)) = 0
            size = size - 1
        Wend
        GetUser = left$(UserName, size)
    End If
End Function

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Expert Comment

by:Glowman
ID: 6999545
Declare Function GetEnvironmentVariableA Lib "kernel32" (ByVal lpName As String, ByVal lpBuffer As String, ByVal nsize As Long) As Long

Public Function UserVariables(ByVal EnvVariable As String) As String
   
    Dim strEnv As String
    Dim longEnv As Long
   
    strEnv = Space(4096)
   
    longEnv = GetEnvironmentVariableA(EnvVariable, strEnv, Len(strEnv))
    UserVariables = Left(strEnv, longEnv)
   
End Function

Then in your sub or whatever you call the UserVariable function passing the Parameter "USERNAME" like this.

"     Current User          : " & UserVariables("USERNAME")

Doing it this way allows you to check for tons of other system environment variables.  Like "OS", "COMPUTERNAME","PROCESSOR_IDENTIFIER", etc

Hope it helps
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by:Moondancer
ID: 7018603
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