Public Const EM_CHARFROMPOS = &HD7
Public Const EM_GETLINECOUNT = &HBA
Public Const EM_GETLINE = &HC4
Public Const EM_LINEINDEX = &HBB
Public Const EM_LINELENGTH = &HC1
Public Const EM_SETSEL = &HB1

Declare Sub RtlMoveMemory Lib "KERNEL32" (lpvDest As Any, lpvSource As Any, ByVal cbCopy As Long)
Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long

看看这个函数就知道了

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)

2. 程序范例：
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
'教程中国.百万教程
End Sub
' 假设要读取 Text1 第 5 行的数据

Dim S As String

Call TB_GetLine( Text1.hWnd, 5, S )

' 传回值 S 即等于第 5 行的数据

（ 注：TextBox 的行次是从 0 起算。）

超级管理

难不成用split (text1,vbcr) 做 哈哈