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How to: Retrieve the Name of the User Logged On To the Network

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This topic contians a user-defined function, GetLogonName, that returns the current user name. The GetLogonName function utilizes the GetUserNameA Windows API to retrieve the current user name.

' Access the GetUserNameA function in advapi32.dll and 
' call the function GetUserName. 
Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" _ 
 (ByVal lpBuffer As String, nSize As Long) As Long 
 
' Main routine to retrieve user name. 
Function GetLogonName() As String 
 
 ' Dimension variables 
 Dim lpBuff As String * 255 
 Dim ret As Long 
 
 ' Get the user name minus any trailing spaces found in the name. 
 ret = GetUserName(lpBuff, 255) 
 
 If ret > 0 Then 
 GetLogonName = Left(lpBuff, InStr(lpBuff, Chr(0)) - 1) 
 Else 
 GetLogonName = vbNullString 
 End If 
End Function