VB6判断操作系统是否运行在安全模式

Private Declare Function GetSystemMetrics Lib "user32" (ByVal nIndex As Long) As Long

Private Const SM_CLEANBOOT& = 67

Public Function IsSystemRunInSafeMode() As Boolean
    Dim lngRet As Long
    lngRet = GetSystemMetrics(SM_CLEANBOOT)
    Select Case lngRet
           Case 0 '普通模式
           Case 1 '安全模式
                IsSystemRunInSafeMode = True
           Case 2 '带网络连接的安全模式
                IsSystemRunInSafeMode = True
           Case Else '获取状态失败
    End Select
End Function

'测试
Private Sub Command1_Click()
    If IsSystemRunInSafeMode() = True Then
       MsgBox "系统运行在安全模式"
    Else
       MsgBox "系统运行在普通模式"
    End If
End Sub