frmmain.frm

OPC CLIENT开发包

VERSION 5.00
Object = "{F9043C88-F6F2-101A-A3C9-08002B2F49FB}#1.2#0"; "COMDLG32.OCX"
Object = "{831FDD16-0C5C-11D2-A9FC-0000F8754DA1}#2.0#0"; "MSCOMCTL.OCX"
Begin VB.Form frmMain 
   Caption         =   "OPC DA Client by VB(by lzy)"
   ClientHeight    =   7545
   ClientLeft      =   165
   ClientTop       =   450
   ClientWidth     =   9915
   Icon            =   "frmMain.frx":0000
   LinkTopic       =   "Form1"
   ScaleHeight     =   7545
   ScaleWidth      =   9915
   StartUpPosition =   2  '屏幕中心
   Begin VB.ListBox lstProcess 
      Height          =   1860
      Left            =   0
      TabIndex        =   2
      Top             =   5400
      Width           =   9735
   End
   Begin MSComctlLib.ListView lvListView 
      Height          =   2055
      Left            =   120
      TabIndex        =   1
      Top             =   360
      Width           =   1455
      _ExtentX        =   2566
      _ExtentY        =   3625
      View            =   3
      LabelEdit       =   1
      LabelWrap       =   -1  'True
      HideSelection   =   -1  'True
      FullRowSelect   =   -1  'True
      HotTracking     =   -1  'True
      _Version        =   393217
      ForeColor       =   -2147483640
      BackColor       =   -2147483643
      BorderStyle     =   1
      Appearance      =   1
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "MS Sans Serif"
         Size            =   8.25
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      NumItems        =   5
      BeginProperty ColumnHeader(1) {BDD1F052-858B-11D1-B16A-00C0F0283628} 
         Text            =   "Name"
         Object.Width           =   3881
      EndProperty
      BeginProperty ColumnHeader(2) {BDD1F052-858B-11D1-B16A-00C0F0283628} 
         SubItemIndex    =   1
         Text            =   "Value"
         Object.Width           =   3351
      EndProperty
      BeginProperty ColumnHeader(3) {BDD1F052-858B-11D1-B16A-00C0F0283628} 
         SubItemIndex    =   2
         Text            =   "Quality"
         Object.Width           =   3351
      EndProperty
      BeginProperty ColumnHeader(4) {BDD1F052-858B-11D1-B16A-00C0F0283628} 
         SubItemIndex    =   3
         Text            =   "TimeStamp"
         Object.Width           =   3351
      EndProperty
      BeginProperty ColumnHeader(5) {BDD1F052-858B-11D1-B16A-00C0F0283628} 
         SubItemIndex    =   4
         Object.Width           =   2540
      EndProperty
   End
   Begin MSComctlLib.StatusBar sbStatusBar 
      Align           =   2  'Align Bottom
      Height          =   270
      Left            =   0
      TabIndex        =   0
      Top             =   7275
      Width           =   9915
      _ExtentX        =   17489
      _ExtentY        =   476
      _Version        =   393216
      BeginProperty Panels {8E3867A5-8586-11D1-B16A-00C0F0283628} 
         NumPanels       =   3
         BeginProperty Panel1 {8E3867AB-8586-11D1-B16A-00C0F0283628} 
            AutoSize        =   1
            Object.Width           =   11853
            Text            =   "Status"
            TextSave        =   "Status"
         EndProperty
         BeginProperty Panel2 {8E3867AB-8586-11D1-B16A-00C0F0283628} 
            Style           =   6
            AutoSize        =   2
            TextSave        =   "2007-8-18"
         EndProperty
         BeginProperty Panel3 {8E3867AB-8586-11D1-B16A-00C0F0283628} 
            Style           =   5
            AutoSize        =   2
            TextSave        =   "15:37"
         EndProperty
      EndProperty
   End
   Begin MSComDlg.CommonDialog dlgCommonDialog 
      Left            =   1740
      Top             =   1320
      _ExtentX        =   847
      _ExtentY        =   847
      _Version        =   393216
   End
   Begin VB.Menu mnuFile 
      Caption         =   "&File"
      Begin VB.Menu menuOpen 
         Caption         =   "Open..."
      End
      Begin VB.Menu menuSaveAs 
         Caption         =   "SaveAs..."
         Enabled         =   0   'False
      End
      Begin VB.Menu menuSetup 
         Caption         =   "Setup..."
      End
      Begin VB.Menu mnuExit 
         Caption         =   "Exit"
      End
   End
   Begin VB.Menu mnuOpc 
      Caption         =   "&OPC"
      Begin VB.Menu mnuConnect 
         Caption         =   "&Connect"
      End
      Begin VB.Menu mnuDisconnect 
         Caption         =   "&Disconnect"
         Enabled         =   0   'False
      End
      Begin VB.Menu mnuServerStatus 
         Caption         =   "Server Status"
         Enabled         =   0   'False
      End
      Begin VB.Menu mnuSplit2 
         Caption         =   "-"
      End
      Begin VB.Menu mnuGroupStatus 
         Caption         =   "Group Stat"
         Enabled         =   0   'False
      End
      Begin VB.Menu mnuGroupRefresh 
         Caption         =   "Refresh Data"
         Enabled         =   0   'False
      End
      Begin VB.Menu mnuSplit 
         Caption         =   "-"
      End
      Begin VB.Menu mnuAddItem 
         Caption         =   "&Add Item"
         Enabled         =   0   'False
      End
      Begin VB.Menu mnuRemoveItem 
         Caption         =   "&Remove Item"
         Enabled         =   0   'False
      End
      Begin VB.Menu mnuReadItem 
         Caption         =   "R&ead Item"
         Enabled         =   0   'False
      End
      Begin VB.Menu mnuWriteItem 
         Caption         =   "&Write Item"
         Enabled         =   0   'False
      End
      Begin VB.Menu mnuItemStatus 
         Caption         =   "Item Properties"
         Enabled         =   0   'False
      End
   End
   Begin VB.Menu mnuHelp 
      Caption         =   "&Help"
      Begin VB.Menu mnuHelpAbout 
         Caption         =   "&About"
      End
   End
End
Attribute VB_Name = "frmMain"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim ComputerName As String, ServerClassID As String
Public Sub Disconnect()
    On Error GoTo out1
    ItemIndex = 0
    If ServerHandle = 0 Then Exit Sub
    If GroupHandle > 0 Then
        lvListView.ListItems.Clear
        Dim ret As Boolean
        ret = OPC_RemoveGroup(ServerHandle, GroupHandle)
        GroupHandle = 0
'        OPC_RemoveGroup ServerHandle, GroupHandle
    End If
    
    If OPC_Disconnect(ServerHandle) Then
        ServerHandle = 0
        GroupHandle = 0
        mnuConnect.Enabled = True
        mnuDisconnect.Enabled = False
        mnuServerStatus.Enabled = False
        mnuGroupStatus.Enabled = False
        mnuGroupRefresh.Enabled = False
        mnuAddItem.Enabled = False
        mnuAddItem.Enabled = False
        mnuRemoveItem.Enabled = False
        mnuReadItem.Enabled = False
        mnuWriteItem.Enabled = False
        mnuItemStatus.Enabled = False
    End If
    Exit Sub
out1:
   MsgBox Err.Description
End Sub

Private Sub Form_Load()
    ServerHandle = 0
    GroupHandle = 0
    ItemIndex = 0
    GroupName = "GROUP1"
    '序列号用户使用
    'AS_ActiveCode "", ""
    Call OPC_Init
   OPC_SetProcessTiggerProc AddressOf AddProcess
End Sub

Private Sub Form_Unload(Cancel As Integer)
    If ServerHandle > -1 Then
        OPC_Disconnect ServerHandle
    End If
    OPC_Uninit
End Sub


Private Sub Form_Resize()
    On Error Resume Next
    If Me.Width < 3000 Then Me.Width = 3000
    lvListView.Top = 0
    lvListView.Left = 10
    lvListView.Width = Me.Width - 120
    lvListView.Height = Me.ScaleHeight - sbStatusBar.Height - lstProcess.Height
    lstProcess.Top = lvListView.Height + 20
    lstProcess.Width = lvListView.Width
End Sub

Private Sub lvListView_ItemClick(ByVal Item As MSComctlLib.listItem)
    If lvListView.SelectedItem Is Nothing Then Exit Sub
    mnuReadItem.Enabled = True
    mnuWriteItem.Enabled = True
    mnuItemStatus.Enabled = True