用api滚动listbox.frm

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VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "利用程序控制TextBox的滚动"
   ClientHeight    =   3735
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   5745
   LinkTopic       =   "Form1"
   ScaleHeight     =   3735
   ScaleWidth      =   5745
   StartUpPosition =   3  'Windows Default
   Begin VB.CommandButton Command1 
      Caption         =   "滚动"
      Height          =   375
      Left            =   4320
      TabIndex        =   5
      Top             =   2520
      Width           =   1215
   End
   Begin VB.TextBox txtY 
      Height          =   270
      Left            =   3600
      TabIndex        =   4
      Top             =   3360
      Width           =   615
   End
   Begin VB.TextBox txtX 
      Height          =   270
      Left            =   3600
      TabIndex        =   2
      Top             =   2955
      Width           =   615
   End
   Begin VB.TextBox Text1 
      BeginProperty Font 
         Name            =   "PMingLiU"
         Size            =   12
         Charset         =   136
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   2775
      Left            =   240
      MultiLine       =   -1  'True
      ScrollBars      =   3  'Both
      TabIndex        =   0
      Text            =   "用API滚动ListBox.frx":0000
      Top             =   120
      Width           =   3975
   End
   Begin VB.Label Label2 
      AutoSize        =   -1  'True
      Caption         =   "Y轴滚动行数(> 0 表示下滚, < 0 表示上滚)"
      Height          =   195
      Left            =   240
      TabIndex        =   3
      Top             =   3405
      Width           =   3165
   End
   Begin VB.Label Label1 
      AutoSize        =   -1  'True
      Caption         =   "X轴滚动行数(> 0表示右滚, < 0表示左滚)"
      Height          =   195
      Left            =   240
      TabIndex        =   1
      Top             =   3000
      Width           =   3075
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Command1_Click()
    SendMessage Text1.hwnd, EM_LINESCROLL, Val(txtX), ByVal CLng(Val(txtY))
End Sub