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Set and get a Computer's name

Set and get a Computer's name

To set and get the name of the local computer/machine, use the following code:

Option Explicit
Private Declare Function GetComputerName Lib "kernel32" Alias "GetComputerNameA" (ByVal lpbuffer As String, nsize As Long) As Long
Private Declare Function SetComputerName Lib "kernel32" Alias "SetComputerNameA" (ByVal lpComputerName As String) As Long


'Purpose     :  Returns the name of the local machine/computer
'Inputs      :  N/A
'Outputs     :  Returns the name of the local machine
'Notes       :  Uses a private static for speed


Function MachineName() As String
    Dim lRet As Long
    Dim lMaxLen As Long
    Static ssMachineName As String
    
    If Len(ssMachineName) = 0 Then
        lMaxLen = 100
        ssMachineName = String$(lMaxLen, vbNullChar)
        lRet = GetComputerName(ssMachineName, lMaxLen)
        ssMachineName = Left$(ssMachineName, lMaxLen)
    End If
    MachineName = ssMachineName
End Function

'Purpose     :  Sets the name of the local machine/computer
'Inputs      :  sName           The new name of the local machine/computer
'Outputs     :  Returns True if failed to change local machine name


Function MachineNameSet(sName As String) As Boolean
    MachineNameSet = IIf(SetComputerName(sName & vbNullChar) = 0, False, True)
End Function
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