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VBA Tips - Código de exemplo para recuperar o nome de usuário atual

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Este exemplo de código, aplicado ao Microsoft Visual Basic for Applications usa a função WNetGetUser (Função API do Windows no arquivo MPR.dll) para recuperar o nome de usuário usado para estabelecer uma conexão de rede.
' 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

Reference
Tags: VBA, Excel, API, MPR.dll, WNetGetUser, user, name, nome, usuário,


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