form1.frm

这里有很多很实用的VB编程案例,方便大家学习VB.

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "自制滚动文本框"
   ClientHeight    =   2835
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   3930
   LinkTopic       =   "Form1"
   ScaleHeight     =   2835
   ScaleWidth      =   3930
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command4 
      Caption         =   "左卷一列"
      Height          =   375
      Left            =   2400
      TabIndex        =   4
      Top             =   2040
      Width           =   1095
   End
   Begin VB.CommandButton Command3 
      Caption         =   "右卷一列"
      Height          =   375
      Left            =   2400
      TabIndex        =   3
      Top             =   1440
      Width           =   1095
   End
   Begin VB.CommandButton Command2 
      Caption         =   "上卷一行"
      Height          =   375
      Left            =   2400
      TabIndex        =   2
      Top             =   840
      Width           =   1095
   End
   Begin VB.CommandButton Command1 
      Caption         =   "下卷一行"
      Height          =   375
      Left            =   2400
      TabIndex        =   1
      Top             =   240
      Width           =   1095
   End
   Begin VB.TextBox Text1 
      Height          =   1215
      Left            =   240
      MultiLine       =   -1  'True
      ScrollBars      =   3  'Both
      TabIndex        =   0
      Text            =   "Form1.frx":0000
      Top             =   240
      Width           =   1935
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Const EM_LINESCROLL = &HB6
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long

Private Sub Command1_Click()
    ret = SendMessage(Text1.hwnd, EM_LINESCROLL, 0, 1)  ' 下卷一行
End Sub

Private Sub Command2_Click()
    ret = SendMessage(Text1.hwnd, EM_LINESCROLL, 0, -1)  ' 上卷一行
End Sub

Private Sub Command3_Click()
    ret = SendMessage(Text1.hwnd, EM_LINESCROLL, 1, 0) ' 右卷一列
End Sub

Private Sub Command4_Click()
    ret = SendMessage(Text1.hwnd, EM_LINESCROLL, -1, 0) ' 左卷一列
End Sub