home *** CD-ROM | disk | FTP | other *** search
- VERSION 2.00
- Begin Form CommDemo
- BackColor = &H00C0C0C0&
- BorderStyle = 1 'Fixed Single
- Caption = "Visual Basic Communication Demo"
- ClientHeight = 240
- ClientLeft = 1245
- ClientTop = 1770
- ClientWidth = 9090
- FontBold = 0 'False
- FontItalic = 0 'False
- FontName = "MS Sans Serif"
- FontSize = 8.25
- FontStrikethru = 0 'False
- FontTransparent = 0 'False
- FontUnderline = 0 'False
- ForeColor = &H00000000&
- Height = 930
- Icon = COMMDEMO.FRX:0000
- Left = 1185
- LinkMode = 1 'Source
- LinkTopic = "Form1"
- MaxButton = 0 'False
- ScaleHeight = 240
- ScaleWidth = 9090
- Top = 1140
- Width = 9210
- Begin Menu Menu_File
- Caption = "&File"
- Begin Menu Menu_File_About
- Caption = "&About..."
- End
- Begin Menu Menu_File_Seperator
- Caption = "-"
- End
- Begin Menu Menu_File_Exit
- Caption = "E&xit"
- End
- End
- Begin Menu Menu_Comm
- Caption = "&Communications"
- Begin Menu Menu_Comm_Connect
- Caption = "&Connect"
- End
- Begin Menu Menu_Comm_Disconnect
- Caption = "&Disconnect"
- End
- Begin Menu Menu_Comm_Filler1
- Caption = "-"
- End
- Begin Menu Menu_Comm_Send_CRLF
- Caption = "&Send CR/LF for CR"
- End
- End
- Begin Menu Menu_Settings
- Caption = "&Settings"
- Begin Menu Menu_Settings_Port
- Caption = "&Port Settings..."
- End
- Begin Menu Menu_Settings_Line
- Caption = "&Line Settings..."
- End
- Begin Menu Menu_Settings_Event
- Caption = "&Event Settings..."
- End
- End
- Begin Menu Menu_Windows
- Caption = "&Windows"
- Enabled = 0 'False
- Begin Menu Menu_Window_Receive_Transmit
- Caption = "&Receive/Transmit Window..."
- End
- End
- Sub Form_Load ()
- Initialize
- Menu_Comm_Connect.Visible = True
- Menu_Comm_Disconnect.Visible = False
- offset = 200
- CaptionLeft = offset
- CaptionTop = offset
- CaptionWidth = ScaleWidth - CaptionLeft - offset
- CaptionHeight = TextHeight("qypgjXAQK") * 1.5
- UpdateCaption " Ready", 0
- Left = (Screen.width - width) / 2
- top = Height - ScaleHeight
- Height = top + CaptionTop + CaptionHeight + offset
- End Sub
- Sub Form_Paint ()
- Draw3d CaptionLeft, CaptionTop, CaptionWidth, CaptionHeight, CommDemo
- UpdateCaption CaptionText$, 0
- End Sub
- Sub Form_Unload (Cancel As Integer)
- If CommHandle > -1 Then
- Menu_Comm_Disconnect_click
- End If
- UpdateCaption " Terminating Communication Sampler II...", .5
- End Sub
- Sub Initialize ()
- IndexTrans = 0
- IndexReceive = 0
- CommHandle = -1
- CommDeviceNum = -1
- ' Default Port Settings
- CommPortName = "COM1:"
- CommState.BaudRate = 9600
- CommState.ByteSize = Chr$(8)
- CommState.Parity = Chr$(0)
- CommState.StopBits = Chr$(0)
- ' Default Line Settings
- CommRBBuffer = 2048
- CommTBBuffer = 2048
- CommState.RlsTimeOut = 0
- CommState.CtsTimeOut = 0
- CommState.DsrTimeOut = 0
- CommEventMask = &H3FF
- CommReadInterval = 500
- ' Post-Poned settings
- PostRBBuffer = CommRBBuffer
- PostTBBuffer = CommTBBuffer
- PostEventMask = CommEventMask
- PostState = CommState
- PostReadInterval = CommReadInterval
- PostPortName = CommPortName
- End Sub
- Sub Menu_Comm_Connect_Click ()
- UpdateCaption " Opening Comm Port... " + CommPortName, .5
- CommTBBuffer = PostTBBuffer
- CommRBBuffer = PostRBBuffer
- CommPortName = PostPortName
- CommHandle = OpenComm(CommPortName, CommRBBuffer, CommTBBuffer)
- If CommHandle = -2 Then
- result% = MsgBox("Port already Open!" + Chr$(13) + "Do you want to use it anyway ?", 4 + 16 + 256, "Communication Sampler II")
-
- If result% = 6 Then
- ApiErr% = CloseComm(0)
- CommHandle = OpenComm(CommPortName, CommRBBuffer, CommTBBuffer)
- End If
- End If
- If CommHandle < 0 Then
- UpdateCaption " OpenComm() API Failed! (ERR " + Str$(CommHandle) + ")", .5
- Else
- Menu_Windows.enabled = True
- Menu_Window_Receive_Transmit.Checked = True
- Receive.Show
-
- CommEventMask = PostEventMask
- CommDeviceNum = Val(Mid$(CommPortName, 4, 1))
- ApiErr% = SetCommEventMask(CommHandle, CommEventMask)
- PostState = CommState
- CommState.Id = Chr$(CommHandle)
- ApiErr% = SetCommState(CommState)
- Menu_Comm_Connect.Visible = Menu_Comm_Disconnect.Visible
- Menu_Comm_Disconnect.Visible = Not Menu_Comm_Connect.Visible
- UpdateCaption " Commuications Port Opened...", .5
- DisplayQBOpen CommState, CommPortName, CommRBBuffer, CommTBBuffer, CommReadInterval
- CommReadInterval = PostReadInterval
- Receive.Receive_Timer.interval = CommReadInterval
- End If
- End Sub
- Sub Menu_Comm_Disconnect_click ()
- UpdateCaption " Closing Communication Port...", 0
- Receive.Receive_Timer.interval = 0
- ApiErr% = CloseComm(CommHandle)
- CommHandle = -1
- CommDeviceNum = -1
- Menu_Comm_Disconnect.Visible = Menu_Comm_Connect.Visible
- Menu_Comm_Connect.Visible = Not Menu_Comm_Disconnect.Visible
- Menu_Windows.enabled = False
- Unload Receive
- UpdateCaption " Ready", 0
- End Sub
- Sub Menu_Comm_Send_CRLF_Click ()
- Menu_Comm_Send_CRLF.Checked = Not Menu_Comm_Send_CRLF.Checked
- End Sub
- Sub Menu_File_About_Click ()
- UpdateCaption " Loading Dialog...", 0
- AboutDlg.Show 1
- If Menu_Comm_Connect.Visible = True Then
- UpdateCaption " Ready ", 0
- Else
- UpdateCaption " Communication Port Open...", 0
- End If
- End Sub
- Sub Menu_File_Exit_Click ()
- Unload CommDemo
- End Sub
- Sub Menu_Settings_Event_Click ()
- UpdateCaption " Loading Dialog...", 0
- EventDlg.Show 1
- If Menu_Comm_Connect.Visible = True Then
- UpdateCaption " Ready ", 0
- Else
- UpdateCaption " Communication Port Open...", 0
- End If
- End Sub
- Sub Menu_Settings_Line_Click ()
- UpdateCaption " Loading Dialog...", 0
- LineDlg.Show 1
- If Menu_Comm_Connect.Visible = True Then
- UpdateCaption " Ready ", 0
- Else
- UpdateCaption " Communication Port Open...", 0
- End If
- End Sub
- Sub Menu_Settings_Port_Click ()
- UpdateCaption " Loading Dialog...", 0
- PortDlg.Show 1
- If Menu_Comm_Connect.Visible = True Then
- UpdateCaption " Ready ", 0
- Else
- UpdateCaption " Communication Port Open...", 0
- End If
- End Sub
- Sub Menu_Window_Receive_Transmit_Click ()
- Menu_Window_Receive_Transmit.Checked = Not Menu_Window_Receive_Transmit.Checked
- If Menu_Window_Receive_Transmit.Checked = True Then
- Receive.Show
- Receive.Receive_Timer.interval = CommReadInterval
- Else
- Receive.Hide
- End If
- End Sub
-