Q

How do I call outlook.exe to send an email with VB.NET?

I'm developing using VB.NET and I want to be able to call outlook.exe to send an email - but I need to supply the

email address and title etc. so that the user needs only to fill in the text portion. It's a Windows, not Web, application. How do I go about doing this? First you must set a reference to the Outlook object model (right click on References, select Add Reference, click the COM tab, and find the Outlook object model). For example, for Outlook 2000 you would look for Microsoft Outlook 9.0 Object Library. As an example, here is the code to return the number of messages in the users inbox:

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    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

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form
Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents Button1 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub
InitializeComponent()
        Me.Button1 = New System.Windows.Forms.Button()
        Me.SuspendLayout()
        '
        'Button1
        '
        Me.Button1.Location = New System.Drawing.Point(168, 120)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "Button1"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.AddRange(New System.Windows.Forms.Control()
{Me.Button1})
        Me.Name = "Form1"
        Me.Text = "Form1"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Button1.Click
        Dim objOutlook As Outlook.Application
        Dim objNamespace As Outlook.NameSpace
        Dim objMAPIFolder As Outlook.MAPIFolder

        objOutlook = New Outlook.Application()
        objNamespace = objOutlook.GetNamespace(Type:="MAPI")
        objMAPIFolder =
objNamespace.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox)

        MsgBox("You have " & objMAPIFolder.Items.Count & _
          " messages in your Inbox.", vbInformation)


    End Sub
End Class

This was first published in June 2002

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