Mega Code Archive
TAPI, Dial a phone number
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Imports System.Windows.Forms
public class PhoneTAPI
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Inherits System.Windows.Forms.Form
Public Sub New()
MyBase.New()
InitializeComponent()
End Sub
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
Private components As System.ComponentModel.IContainer
Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
Friend WithEvents Label1 As System.Windows.Forms.Label
Friend WithEvents Button1 As System.Windows.Forms.Button
Friend WithEvents Label2 As System.Windows.Forms.Label
Friend WithEvents Button2 As System.Windows.Forms.Button
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.TextBox1 = New System.Windows.Forms.TextBox
Me.Label1 = New System.Windows.Forms.Label
Me.Button1 = New System.Windows.Forms.Button
Me.Label2 = New System.Windows.Forms.Label
Me.Button2 = New System.Windows.Forms.Button
Me.SuspendLayout()
'
'TextBox1
'
Me.TextBox1.Location = New System.Drawing.Point(120, 32)
Me.TextBox1.Name = "TextBox1"
Me.TextBox1.Size = New System.Drawing.Size(152, 20)
Me.TextBox1.TabIndex = 0
Me.TextBox1.Text = ""
'
'Label1
'
Me.Label1.Location = New System.Drawing.Point(16, 32)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(104, 32)
Me.Label1.TabIndex = 1
Me.Label1.Text = "Phone #"
'
'Button1
'
Me.Button1.Location = New System.Drawing.Point(64, 72)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(64, 24)
Me.Button1.TabIndex = 2
Me.Button1.Text = "Dial"
'
'Label2
'
Me.Label2.Location = New System.Drawing.Point(32, 120)
Me.Label2.Name = "Label2"
Me.Label2.Size = New System.Drawing.Size(240, 104)
Me.Label2.TabIndex = 3
Me.Label2.Text = "Message"
'
'Button2
'
Me.Button2.Location = New System.Drawing.Point(160, 72)
Me.Button2.Name = "Button2"
Me.Button2.Size = New System.Drawing.Size(64, 24)
Me.Button2.TabIndex = 4
Me.Button2.Text = "Exit"
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 246)
Me.Controls.Add(Me.Button2)
Me.Controls.Add(Me.Label2)
Me.Controls.Add(Me.Button1)
Me.Controls.Add(Me.Label1)
Me.Controls.Add(Me.TextBox1)
Me.ResumeLayout(False)
End Sub
Declare Auto Function tapiRequestMakeCall Lib "TAPI32.dll" (ByVal DestAddress As String, ByVal AppName As String, ByVal CalledParty As String, ByVal Comment As String) As Integer
Const TAPIERR_CONNECTED As Short = 0
Const TAPIERR_NOREQUESTRECIPIENT As Short = -2
Const TAPIERR_REQUESTQUEUEFULL As Short = -3
Const TAPIERR_INVALDESTADDRESS As Short = -4
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Str As String
Dim t As Short
Dim buff As String
Str = Trim(TextBox1.Text)
Try
t = tapiRequestMakeCall(Str, "Dial", Str, "")
Catch ex As Exception
Label2.Text = "Error"
End Try
If t <> 0 Then
buff = "Error"
Select Case t
Case TAPIERR_NOREQUESTRECIPIENT
buff = buff & "No windows Telephony dialing application is running and none could be started."
Case TAPIERR_REQUESTQUEUEFULL
buff = buff & "The queue of pending Windows Telephony dialing requests is full."
Case TAPIERR_INVALDESTADDRESS
buff = buff & "The phone number is not valid."
Case Else
buff = buff & "Unkown error."
End Select
Else
buff = "Dialing"
End If
Label2.Text = buff
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
End
End Sub
End Class
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