serverdlg.frm

VBOPCClient.rar vb编写的opc客户端源程序

VERSION 5.00
Begin VB.Form ServerDlg 
   BorderStyle     =   3  'Fixed Dialog
   Caption         =   "连接OPC服务器"
   ClientHeight    =   3000
   ClientLeft      =   2760
   ClientTop       =   3750
   ClientWidth     =   6030
   Icon            =   "ServerDlg.frx":0000
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   3000
   ScaleWidth      =   6030
   ShowInTaskbar   =   0   'False
   Begin VB.CommandButton cmdFind 
      Caption         =   "刷新"
      Height          =   375
      Left            =   4680
      TabIndex        =   5
      Top             =   1440
      Width           =   1215
   End
   Begin VB.ListBox listServer 
      Height          =   1620
      Left            =   1200
      TabIndex        =   4
      Top             =   960
      Width           =   3255
   End
   Begin VB.TextBox txtMachineName 
      Height          =   270
      Left            =   1200
      TabIndex        =   3
      Text            =   "Text1"
      Top             =   600
      Width           =   3255
   End
   Begin VB.TextBox txtServerName 
      Height          =   270
      Left            =   1200
      TabIndex        =   2
      Text            =   "Text1"
      Top             =   240
      Width           =   3255
   End
   Begin VB.CommandButton CancelButton 
      Caption         =   "取消"
      Height          =   375
      Left            =   4680
      TabIndex        =   1
      Top             =   720
      Width           =   1215
   End
   Begin VB.CommandButton OKButton 
      Caption         =   "确定"
      Default         =   -1  'True
      Height          =   375
      Left            =   4680
      TabIndex        =   0
      Top             =   240
      Width           =   1215
   End
   Begin VB.Label Label3 
      Caption         =   "服务器列表："
      Height          =   255
      Left            =   120
      TabIndex        =   8
      Top             =   960
      Width           =   1095
   End
   Begin VB.Label Label2 
      Caption         =   "计算机名："
      Height          =   255
      Left            =   120
      TabIndex        =   7
      Top             =   600
      Width           =   975
   End
   Begin VB.Label Label1 
      Caption         =   "服务器名："
      Height          =   255
      Left            =   120
      TabIndex        =   6
      Top             =   240
      Width           =   975
   End
End
Attribute VB_Name = "ServerDlg"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False

Option Explicit

Public mstrMachineName As String
Public mstrServerName As String
Public mbVer2 As Long

Public mbReturn As Boolean

Private Sub CancelButton_Click()
    Unload Me
End Sub

Private Sub ckVer1_Click()
    cmdFind_Click
End Sub

Private Sub cmdFind_Click()
    Dim buf(100) As Byte
    listServer.Clear
    txtServerName.Text = ""
    
    mstrMachineName = txtMachineName.Text
    StringToByte mstrMachineName, buf

    mbVer2 = 2
    
    Dim count As Integer
    count = HF_GetServerCount(buf(0), mbVer2)
    
    If count = -1 Then
        MsgBox "Error getting server list"
        Exit Sub
    End If
        
    Dim i, j As Integer
    Dim bReturn As Boolean
    Dim strName As String
    For i = 0 To count - 1
        bReturn = HF_GetServerName(i, buf(0), 100)
        If bReturn = True Then
            strName = ""
            For j = 0 To 99
                strName = strName + Chr(buf(j))
            Next j
            listServer.AddItem strName
        End If
    Next i
    
End Sub

Private Sub Form_Load()
    mbReturn = False
    
    txtMachineName.Text = ""
    txtServerName.Text = ""
    
    cmdFind_Click
End Sub

Private Sub listServer_Click()
    If listServer.ListIndex = -1 Then Exit Sub
    txtServerName.Text = listServer.Text
    mstrServerName = txtServerName.Text
End Sub

Private Sub OKButton_Click()
    mbReturn = True
    Unload Me
End Sub