谁能帮我解释一段VB6.0的原代码

下面是程序代码,请高手帮忙翻译一下 希望可以解释的专业一些 谢谢!
最好是一字一句的翻。。。
Private Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpbuffer As String, nSize As Long) As Long

Public OK As Boolean
Private Sub cmdCancel_Click()
OK = False
Me.Hide
End Sub

Private Sub cmdOK_Click()
'ToDo: create test for correct password
'check for correct password
Dim txtSQL As String
Dim mrc As ADODB.Recordset
Dim MsgText As String
'ToDo: create test for correct password
'check for correct password

UserName = ""
If Trim(txtUserName.Text = "") Then
MsgBox "没有这个用户，请重新输入用户名！", vbOKOnly + vbExclamation, "警告"
txtUserName.SetFocus
Else
txtSQL = "select * from user_Info where user_ID = '" & txtUserName.Text & "'"
Set mrc = ExecuteSQL(txtSQL, MsgText)
If mrc.

Private Declare Function GetUserName Lib "advapi32.dll" Alias "GetUserNameA" (ByVal lpbuffer As String, nSize As Long) As Long
'定义了一个函数，调用一个动态联接库文件，具体是什么，还在看从哪里弄来的代码

Public OK As Boolean
‘定义一个布尔常量
Private Sub cmdCancel_Click()
定义一个按钮的单击事件
OK = False
’当这个事件发生时将其付为假
Me.Hide
‘隐藏本窗口，ME代表自身，也可以将其省略
End Sub

Private Sub cmdOK_Click()
'ToDo: create test for correct password
'check for correct password
’以上是注示
Dim txtSQL As String
Dim mrc As ADODB.Recordset
‘定义一个记录集常量
Dim MsgText As String
'ToDo: create test for correct password
'check for correct password

UserName = ""
If Trim(txtUserName.Text = "") Then
’txtUserName是一个文本框，判断是不是为空，去除内部的空格
MsgBox "没有这个用户，请重新输入用户名！", vbOKOnly + vbExclamation, "警告"
’定义一个信息提示框，上面只有一个确定按钮，还有一个感叹号
txtUserName.SetFocus