[QWERTU]

كود فتح درج الكاشير بعد حفظ او انهاء فاتورة البيع ؟

[asemshahen5]

كود :

Option Explicit On
Option Strict On
Imports System.IO.Ports

'-----------------------------------------------------------
Dim myComPort As New SerialPort
   ''' <summary>
   ''' </summary>
   Private Sub btnOff_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
       SendCommand("L10")
   End Sub
   ''' <summary>
   ''' </summary>
   Private Sub btnOn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
       SendCommand("L11")
   End Sub
   ''' <summary>
   ''' </summary>
   Sub CloseComPort()
       Try
           Using myComPort
               If (Not (myComPort Is Nothing)) Then
                   If myComPort.IsOpen Then
                       Do While (myComPort.BytesToWrite > 0)
                       Loop
                   End If
               End If
           End Using
       Catch ex As UnauthorizedAccessException
       End Try
   End Sub
   ''' <summary>
   ''' </summary>
   Private Sub cmbBitRate_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmbBitRate.SelectedIndexChanged
       myComPort.BaudRate = CInt(cmbBitRate.SelectedItem)
   End Sub
   ''' <summary>
   ''' </summary>
   Private Sub cmbPorts_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmbPorts.SelectedIndexChanged

   End Sub
   ''' <summary>
   ''' </summary>
   Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
       CloseComPort()
   End Sub
   ''' <summary>
   ''' </summary>
   Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
       InitializeForm()
       OpenComPort()
    End Sub
   ''' <summary>
   ''' </summary>
   Sub InitializeForm()
       On Error Resume Next
       Dim bitRates(9) As Integer
       Dim nameArray() As String
       nameArray = SerialPort.GetPortNames
       Array.Sort(nameArray)
       cmbPorts.DataSource = nameArray
       cmbPorts.DropDownStyle = ComboBoxStyle.DropDownList
       cmbPorts.SelectedIndex = 1
       bitRates(0) = 300
       bitRates(1) = 600
       bitRates(2) = 1200
       bitRates(3) = 2400
       bitRates(4) = 9600
       bitRates(5) = 14400
       bitRates(6) = 19200
       bitRates(7) = 38400
       bitRates(8) = 57600
       bitRates(9) = 115200
       cmbBitRate.DataSource = bitRates
       cmbBitRate.DropDownStyle = ComboBoxStyle.DropDownList
       cmbBitRate.SelectedItem = 1200
   End Sub
   ''' <summary>
   ''' </summary>
   Sub OpenComPort()
       On Error Resume Next
       If Not myComPort.IsOpen Then
           myComPort.PortName = cmbPorts.SelectedItem.ToString
           If cmbBitRate.SelectedIndex > 0 Then
               myComPort.BaudRate = CInt(cmbBitRate.SelectedItem)
           End If
           myComPort.Parity = Parity.None
           myComPort.DataBits = 8
           myComPort.StopBits = StopBits.One
           myComPort.Handshake = Handshake.None
           myComPort.ReadTimeout = 3000
           myComPort.WriteTimeout = 5000
           myComPort.Open()
       End If
   End Sub
   Private Sub SendCommand(ByVal command As String)
       Dim response As String
       Try
           myComPort.WriteLine(command)
           response = myComPort.ReadLine
           Select Case response
               Case "0"
                   lblStatus.Text = "الحالة : " + "مشغل"
               Case "1"
                   lblStatus.Text = "الحالة : " + "مغلق"
               Case Else
           End Select
       Catch ex As TimeoutException
           MsgBox(ex.Message, CType(MsgBoxStyle.Critical + MsgBoxStyle.MsgBoxRight + MsgBoxStyle.MsgBoxRtlReading, MsgBoxStyle), "")
       Catch ex As InvalidOperationException
           MsgBox(ex.Message, CType(MsgBoxStyle.Critical + MsgBoxStyle.MsgBoxRight + MsgBoxStyle.MsgBoxRtlReading, MsgBoxStyle), "")
       Catch ex As UnauthorizedAccessException
           MsgBox(ex.Message, CType(MsgBoxStyle.Critical + MsgBoxStyle.MsgBoxRight + MsgBoxStyle.MsgBoxRtlReading, MsgBoxStyle), "")
       End Try
   End Sub
   Private Sub BtnClose_Click(sender As Object, e As EventArgs) Handles BtnClose.Click
       Close()
   End Sub

جرب هذا الكود