VBA如何读取textbox多行文本中的第N行数据？

wqh1007

在VB中可以用以下模块实现：
Public Const EM_GETLINE = &HC4
Public Const EM_LINELENGTH = &HC1
Public Const EM_LINEINDEX = &HBB
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Sub RtlMoveMemory Lib "KERNEL32" (lpvDest As Any, lpvSource As Any, ByVal cbCopy As Long)
Sub TB_GetLine(ByVal hwnd As Long, ByVal whichLine As Long, Line As String)
Dim length As Long, bArr() As Byte, bArr2() As Byte, lc As Long
lc = SendMessage(hwnd, EM_LINEINDEX, whichLine, ByVal 0&)
length = SendMessage(hwnd, EM_LINELENGTH, lc, ByVal 0&)
If length > 0 Then
ReDim bArr(length + 1) As Byte, bArr2(length - 1) As Byte
Call RtlMoveMemory(bArr(0), length, 2) '准备一个存储器，传递消息之前先在存储器的前两个字节填入存储器的长度
Call SendMessage(hwnd, EM_GETLINE, whichLine, bArr(0))
Call RtlMoveMemory(bArr2(0), bArr(0), length)
Line = StrConv(bArr2, vbUnicode)
Else
Line = ""
End If
End Sub

‘调用
Dim S As String
Call TB_GetLine(TextBox1.hwnd, i, S) '读取第i行数据

但是在VBA中不能直接调用textbox的hwnd，所以提取不出数据。本人初学，对VBA等都是一知半解，谁能给改一下以使其能在VBA中使用？