VBA: Sample Code to Retrieve the Current User Name

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Article ID: 161394 - View products that this article applies to.
This article was previously published under Q161394
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SUMMARY

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

Microsoft provides programming examples for illustration only, without warranty either expressed or implied, including, but not limited to, the implied warranties of merchantability and/or fitness for a particular purpose. This article assumes that you are familiar with the programming language being demonstrated and the tools used to create and debug procedures. Microsoft support professionals can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific needs.
If you have limited programming experience, you may want to contact a Microsoft Certified Partner or Microsoft Advisory Services. For more information, visit these Microsoft Web sites:

Microsoft Certified Partners - https://partner.microsoft.com/global/30000104

Microsoft Advisory Services - http://support.microsoft.com/gp/advisoryservice

For more information about the support options that are available and about how to contact Microsoft, visit the following Microsoft Web site:http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

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)
      Else

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

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

   End Sub
				

REFERENCES

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

Properties

Article ID: 161394 - Last Review: January 19, 2007 - Revision: 4.4
APPLIES TO
  • Microsoft Visual Basic for Applications 5.0
  • Microsoft Excel 97 Standard Edition
  • Microsoft Word 97 Standard Edition
  • Microsoft Access 97 Standard Edition
  • Microsoft PowerPoint 97 Standard Edition
Keywords: 
kbcode kbhowto kbprogramming KB161394
Retired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

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