第2个回答 2015-02-10
Option Explicit
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 CopyMemory Lib "KERNEL32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
Private Const EM_GETLINE = &HC4
Private Const EM_LINEINDEX = &HBB
Private Const EM_LINELENGTH = &HC1
Public Function GetLineText(ByVal handle As Long, ByVal Index As Long) As String
Dim LineText() As Byte
Dim size As Long
Dim pos As Long
pos = SendMessage(handle, EM_LINEINDEX, Index, 0)
size = SendMessage(handle, EM_LINELENGTH, pos, 0)
If size = 0 Then
GetLineText = " "
Else
ReDim LineText((size - 1) + 1)
CopyMemory LineText(0), size, 2
size = SendMessage(handle, EM_GETLINE, Index, LineText(0))
GetLineText = StrConv(LeftB(LineText, size), vbUnicode)
End If
End Function
Private Sub Command1_Click()
Dim a(1 To 3) As String
Dim i As Integer
For i = 0 To 2
a(i + 1) = GetLineText(Text1.hWnd, i)
Debug.Print a(i + 1)
Next
End Sub
Private Sub Form_Load()
Text1.Text = "aaa" & vbCrLf & "bbb" & vbCrLf & "ccc"
End Sub