VBA: Sample Code to Retrieve the Current User Name

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The "More Information" section of this article contains sample Microsoft Visual Basic for Applications code that calls WNetGetUser (a Windows API function in the file Mpr.dll) to retrieve the user name used to establish a network connection.

More Information

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Sample Visual Basic Procedure

     ' Declare for call to mpr.dll.
Declare Function WNetGetUser Lib "mpr.dll" _
Alias "WNetGetUserA" (ByVal lpName As String, _
ByVal lpUserName As String, lpnLength As Long) As Long

Const NoError = 0 'The Function call was successful

Sub GetUserName()

' Buffer size for the return string.
Const lpnLength As Integer = 255

' Get return buffer space.
Dim status As Integer

' For getting user information.
Dim lpName, lpUserName As String

' Assign the buffer size constant to lpUserName.
lpUserName = Space$(lpnLength + 1)

' Get the log-on name of the person using product.
status = WNetGetUser(lpName, lpUserName, lpnLength)

' See whether error occurred.
If status = NoError Then
' This line removes the null character. Strings in C are null-
' terminated. Strings in Visual Basic are not null-terminated.
' The null character must be removed from the C strings to be used
' cleanly in Visual Basic.
lpUserName = Left$(lpUserName, InStr(lpUserName, Chr(0)) - 1)

' An error occurred.
MsgBox "Unable to get the name."
End If

' Display the name of the person logged on to the machine.
MsgBox "The person logged on this machine is: " & lpUserName

End Sub


For more information about getting help with Visual Basic for Applications, please see the following article in the Microsoft Knowledge Base:
ARTICLE-ID: 163435 VBA: Programming Resources for Visual Basic for Applications

Article ID: 161394 - Last Review: Jul 13, 2009 - Revision: 1