frmtest.frm

这是一个很好的VB控件,你下载之后就会发现它的神秘之处

VERSION 5.00
Object = "{5E9E78A0-531B-11CF-91F6-C2863C385E30}#1.0#0"; "MSFLXGRD.OCX"
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   5310
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   7440
   LinkTopic       =   "Form1"
   ScaleHeight     =   5310
   ScaleWidth      =   7440
   StartUpPosition =   3  '窗口缺省
   Begin MSFlexGridLib.MSFlexGrid MSFlexGrid1 
      Height          =   5055
      Left            =   0
      TabIndex        =   0
      Top             =   0
      Width           =   7455
      _ExtentX        =   13150
      _ExtentY        =   8916
      _Version        =   393216
      Rows            =   50
      Cols            =   10
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim WithEvents obj As SubClassGrid
Attribute obj.VB_VarHelpID = -1

Private Sub Form_Load()
    Set obj = New SubClassGrid
    obj.HookGrid MSFlexGrid1.Hwnd
End Sub

Private Sub Form_Unload(Cancel As Integer)
    Set obj = Nothing
End Sub

Private Sub obj_MouseWheel(ByVal Rotation As Long, ByVal X As Long, ByVal Y As Long)
    Dim NewValue As Long
    Dim Lstep As Single
    With MSFlexGrid1
        Lstep = 1                                          '
        If Rotation > 0 Then
            NewValue = .TopRow - Lstep
            If NewValue < 1 Then
                NewValue = 1
            End If
        Else
            NewValue = .TopRow + Lstep
            If NewValue > .Rows - 1 Then
                NewValue = .Rows - 1
            End If
        End If
        Debug.Print NewValue
        .TopRow = NewValue
    End With
End Sub