Visual Basic Source Code/Visual Basic Source Code.iso/vbsource/comdem/portdlg.frm

Visual Basic Form | 1995-05-08 | 15.2 KB | 459 lines

VERSION 2.00
Begin Form PortDlg
   BorderStyle     =   3  'Fixed Double
   Caption         =   "Communication Demo - Port Settings"
   ClientHeight    =   3420
   ClientLeft      =   1200
   ClientTop       =   2580
   ClientWidth     =   5460
   Height          =   3825
   Icon            =   0
   Left            =   1140
   LinkMode        =   1  'Source
   LinkTopic       =   "Form3"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   3420
   ScaleWidth      =   5460
   Top             =   2235
   Width           =   5580
   Begin CommandButton Cancel_Cmmd
      Caption         =   "Cancel"
      Height          =   375
      Left            =   4230
      TabIndex        =   32
      Top             =   2880
      Width           =   1095
   End
   Begin CommandButton Ok_Cmmd
      Caption         =   "OK"
      Height          =   375
      Left            =   2220
      TabIndex        =   31
      Top             =   2895
      Width           =   1095
   End
   Begin CommandButton Reset_Cmmd
      Caption         =   "Reset"
      Height          =   375
      Left            =   135
      TabIndex        =   30
      Top             =   2895
      Width           =   1095
   End
   Begin Frame Stop_Bits_Fram
      Height          =   1425
      Left            =   120
      TabIndex        =   18
      Top             =   1320
      Width           =   1095
      Begin OptionButton Stop_Bits_Opt
         Caption         =   "2"
         Height          =   255
         Index           =   2
         Left            =   105
         TabIndex        =   22
         TabStop         =   0   'False
         Top             =   1035
         Width           =   735
      End
      Begin OptionButton Stop_Bits_Opt
         Caption         =   "1.5"
         Height          =   255
         Index           =   1
         Left            =   105
         TabIndex        =   21
         TabStop         =   0   'False
         Top             =   735
         Width           =   735
      End
      Begin OptionButton Stop_Bits_Opt
         Caption         =   "1"
         Height          =   255
         Index           =   0
         Left            =   105
         TabIndex        =   20
         TabStop         =   0   'False
         Top             =   420
         Width           =   735
      End
      Begin Label Stop_Bits_Labl
         Alignment       =   2  'Center
         BorderStyle     =   1  'Fixed Single
         Caption         =   "&Stop Bits"
         Height          =   255
         Left            =   0
         TabIndex        =   19
         Top             =   90
         Width           =   1095
      End
   End
   Begin Frame Data_Bits_Fram
      Height          =   2625
      Left            =   4080
      TabIndex        =   4
      Top             =   120
      Width           =   1215
      Begin OptionButton Data_Bits_Opt
         Caption         =   "8"
         Height          =   255
         Index           =   4
         Left            =   120
         TabIndex        =   10
         TabStop         =   0   'False
         Top             =   2070
         Width           =   975
      End
      Begin OptionButton Data_Bits_Opt
         Caption         =   "7"
         Height          =   255
         Index           =   3
         Left            =   120
         TabIndex        =   9
         TabStop         =   0   'False
         Top             =   1710
         Width           =   975
      End
      Begin OptionButton Data_Bits_Opt
         Caption         =   "6"
         Height          =   255
         Index           =   2
         Left            =   120
         TabIndex        =   8
         TabStop         =   0   'False
         Top             =   1350
         Width           =   975
      End
      Begin OptionButton Data_Bits_Opt
         Caption         =   "5"
         Height          =   255
         Index           =   1
         Left            =   120
         TabIndex        =   7
         TabStop         =   0   'False
         Top             =   990
         Width           =   975
      End
      Begin OptionButton Data_Bits_Opt
         Caption         =   "4"
         Height          =   255
         Index           =   0
         Left            =   120
         TabIndex        =   6
         TabStop         =   0   'False
         Top             =   630
         Width           =   960
      End
      Begin Label Data_Bits_Labl
         Alignment       =   2  'Center
         BorderStyle     =   1  'Fixed Single
         Caption         =   "&Data Bits"
         Height          =   255
         Left            =   0
         TabIndex        =   5
         Top             =   90
         Width           =   1215
      End
   End
   Begin Frame Parity_Fram
      Height          =   2625
      Left            =   2760
      TabIndex        =   11
      Top             =   120
      Width           =   1215
      Begin OptionButton Parity_Opt
         Caption         =   "Space"
         Height          =   255
         Index           =   4
         Left            =   120
         TabIndex        =   17
         TabStop         =   0   'False
         Top             =   2055
         Width           =   975
      End
      Begin OptionButton Parity_Opt
         Caption         =   "Mark"
         Height          =   255
         Index           =   3
         Left            =   120
         TabIndex        =   16
         TabStop         =   0   'False
         Top             =   1695
         Width           =   975
      End
      Begin OptionButton Parity_Opt
         Caption         =   "Even"
         Height          =   255
         Index           =   2
         Left            =   120
         TabIndex        =   15
         TabStop         =   0   'False
         Top             =   1335
         Width           =   855
      End
      Begin OptionButton Parity_Opt
         Caption         =   "Odd"
         Height          =   255
         Index           =   1
         Left            =   120
         TabIndex        =   14
         TabStop         =   0   'False
         Top             =   975
         Width           =   855
      End
      Begin OptionButton Parity_Opt
         Caption         =   "None"
         Height          =   255
         Index           =   0
         Left            =   120
         TabIndex        =   13
         TabStop         =   0   'False
         Top             =   615
         Width           =   855
      End
      Begin Label Parity_Labl
         Alignment       =   2  'Center
         BorderStyle     =   1  'Fixed Single
         Caption         =   "&Parity"
         Height          =   255
         Left            =   0
         TabIndex        =   12
         Top             =   90
         Width           =   1215
      End
   End
   Begin Frame Baud_Rate_Fram
      Height          =   2625
      Left            =   1320
      TabIndex        =   23
      Top             =   120
      Width           =   1335
      Begin OptionButton Baud_Rate_Opt
         Caption         =   "19200"
         Height          =   285
         Index           =   5
         Left            =   120
         TabIndex        =   33
         TabStop         =   0   'False
         Top             =   2250
         Width           =   1005
      End
      Begin OptionButton Baud_Rate_Opt
         Caption         =   "9600"
         Height          =   255
         Index           =   4
         Left            =   120
         TabIndex        =   29
         TabStop         =   0   'False
         Top             =   1920
         Width           =   1095
      End
      Begin OptionButton Baud_Rate_Opt
         Caption         =   "4800"
         Height          =   255
         Index           =   3
         Left            =   120
         TabIndex        =   28
         TabStop         =   0   'False
         Top             =   1575
         Width           =   1095
      End
      Begin OptionButton Baud_Rate_Opt
         Caption         =   "2400"
         Height          =   255
         Index           =   2
         Left            =   120
         TabIndex        =   27
         TabStop         =   0   'False
         Top             =   1215
         Width           =   1095
      End
      Begin OptionButton Baud_Rate_Opt
         Caption         =   "1200"
         Height          =   255
         Index           =   1
         Left            =   120
         TabIndex        =   26
         TabStop         =   0   'False
         Top             =   870
         Width           =   1095
      End
      Begin OptionButton Baud_Rate_Opt
         Caption         =   "300"
         Height          =   255
         Index           =   0
         Left            =   120
         TabIndex        =   25
         TabStop         =   0   'False
         Top             =   510
         Width           =   1095
      End
      Begin Label Baud_Rate_Labl
         Alignment       =   2  'Center
         BorderStyle     =   1  'Fixed Single
         Caption         =   "&Baud Rate"
         Height          =   255
         Left            =   0
         TabIndex        =   24
         Top             =   90
         Width           =   1335
      End
   End
   Begin Frame Comm_Device_Fram
      Height          =   1185
      Left            =   120
      TabIndex        =   0
      Top             =   120
      Width           =   1095
      Begin OptionButton Comm_Device_Opt
         Caption         =   "COM2"
         Height          =   255
         Index           =   1
         Left            =   105
         TabIndex        =   3
         TabStop         =   0   'False
         Top             =   765
         Width           =   855
      End
      Begin OptionButton Comm_Device_Opt
         Caption         =   "COM1"
         Height          =   255
         Index           =   0
         Left            =   105
         TabIndex        =   2
         TabStop         =   0   'False
         Top             =   465
         Width           =   855
      End
      Begin Label Comm_Device_Labl
         Alignment       =   2  'Center
         BorderStyle     =   1  'Fixed Single
         Caption         =   "&Comm Port"
         Height          =   255
         Left            =   0
         TabIndex        =   1
         Top             =   90
         Width           =   1095
      End
   End
Dim WorkPortName As String
Dim WorkDCB As CommStateDCB
Sub Baud_Rate_Opt_Click (Index As Integer)
    If WorkDCB.BaudRate <> Val(Baud_Rate_Opt(Index).caption) Then
        WorkDCB.BaudRate = Val(Baud_Rate_Opt(Index).caption)
        DisplayQBOpen WorkDCB, WorkPortName, CommRBBuffer, CommTBBuffer, CommReadInterval
    End If
End Sub
Sub Cancel_Cmmd_Click ()
    Unload PortDlg
End Sub
Sub Comm_Device_Opt_Click (Index As Integer)
    WorkDCB.Id = Chr$(Index)
    WorkPortName = Comm_Device_Opt(Index).caption + ":"
    UpdateDialogSettings (Index)
    DisplayQBOpen WorkDCB, WorkPortName, CommRBBuffer, CommTBBuffer, CommReadInterval
End Sub
Sub Data_Bits_Opt_Click (Index As Integer)
    If WorkDCB.ByteSize <> Chr$(Index + 4) Then
        WorkDCB.ByteSize = Chr$(Index + 4)
        DisplayQBOpen WorkDCB, WorkPortName, CommRBBuffer, CommTBBuffer, CommReadInterval
    End If
End Sub
Sub Form_Load ()
    Remove_Items_From_SysMenu PortDlg
    WorkDCB = CommState
    WorkPortName = CommPortName
    UpdatePortDlg
    CenterDialog PortDlg
End Sub
Sub Ok_Cmmd_Click ()
    If CommDeviceNum > 0 And CommHandle > -1 Then
        NoChange = True
        If CommState.BaudRate <> WorkDCB.BaudRate Then NoChange = False
        If CommState.Parity <> WorkDCB.Parity Then NoChange = False
        If CommState.StopBits <> WorkDCB.StopBits Then NoChange = False
        If CommState.ByteSize <> WorkDCB.ByteSize Then NoChange = False
        If NoChange = True Then
            Unload PortDlg
            Exit Sub
        End If
        UpdateCaption " DIALOG: Change Active Settings (Yes), Post-Pone (No), Return to Dialog (Cancel)", 0

        Result% = MsgBox("Port Already Active!" + Chr$(13) + "Activate settings Now?", 3 + 16 + 256, "Terminal Sampler II - Port Active")
        Select Case Result%
            Case 6
                UpdateCaption " Changing Port Settings LIVE!", 0

                CommState = WorkDCB
                PostState = WorkDCB
                CommPortName = WorkPortName
                PostPortName = WorkPortName
                ApiErr% = SetCommState(WorkDCB)
                Unload PortDlg
            Case 7
                UpdateCaption " Settings Post-Poned until next CONNECT", 0
                PostState = WorkDCB
                PostPortName = WorkPortName
                Unload PortDlg
            Case Else
                DisplayQBOpen WorkDCB, WorkPortName, CommRBBuffer, CommTBBuffer, CommReadInterval
        End Select
    Else
        CommState = WorkDCB
        PostState = WorkDCB
        CommPortName = WorkPortName
        PostPortName = WorkPortName
        Unload PortDlg
    End If
End Sub
Sub Parity_Opt_Click (Index As Integer)
    If WorkDCB.Parity <> Chr$(Index) Then

        WorkDCB.Parity = Chr$(Index)
        DisplayQBOpen WorkDCB, WorkPortName, CommRBBuffer, CommTBBuffer, CommReadInterval
    End If
End Sub
Sub Reset_Cmmd_Click ()
    WorkDCB = CommState
    UpdatePortDlg
End Sub
Sub Stop_Bits_Opt_Click (Index As Integer)
    If WorkDCB.StopBits <> Chr$(Index) Then

        WorkDCB.StopBits = Chr$(Index)
        DisplayQBOpen WorkDCB, WorkPortName, CommRBBuffer, CommTBBuffer, CommReadInterval
    End If
End Sub
Sub UpdateDialogSettings (Index As Integer)
    For i% = 0 To 5
        If WorkDCB.BaudRate = Val(Baud_Rate_Opt(i%).caption) Then
            Baud_Rate_Opt(i%).value = True
        End If
    Next i%
    Parity_Opt(Asc(WorkDCB.Parity)).value = True
    Data_Bits_Opt(Asc(WorkDCB.ByteSize) - 4).value = True
    Stop_bits_Opt(Asc(WorkDCB.StopBits)).value = True
End Sub
Sub UpdatePortDlg ()
    For i% = 1 To 0 Step -1
        ApiErr% = OpenComm(Comm_Device_Opt(i%).caption + ":", 2048, 2048)
        Select Case ApiErr%
            Case IE_HARDWARE, IE_OPEN
                Comm_Device_Opt(i%).enabled = False
            Case Else
                ApiErr% = CloseComm(ApiErr%)
                Comm_Device_Opt(i%).enabled = True
                Last% = i%
        End Select
        Comm_Device_Opt(i%).value = False
    Next i%
    If CommDeviceNum > 0 And CommHandle > -1 Then
        Last% = CommDeviceNum - 1
        Comm_Device_Opt(Last%).value = True
    Else
        Comm_Device_Opt(Last%).value = True
    End If
    WorkDCB.Id = Chr$(Last%)
    WorkPortName = Comm_Device_Opt(Last%).caption + ":"
End Sub