Add window message to a ListBox
Imports System
Imports System.Windows.Forms
public class MainClass
Shared Sub Main()
Dim form1 As Form = New Form1
Application.Run(form1)
End Sub
End Class
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
Friend WithEvents listBox1 As System.Windows.Forms.ListBox
Friend WithEvents button1 As System.Windows.Forms.Button
'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.
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.listBox1 = New System.Windows.Forms.ListBox()
Me.button1 = New System.Windows.Forms.Button()
Me.SuspendLayout()
'
'listBox1
'
Me.listBox1.Location = New System.Drawing.Point(8, 8)
Me.listBox1.Name = "listBox1"
Me.listBox1.Size = New System.Drawing.Size(272, 212)
Me.listBox1.TabIndex = 0
'
'button1
'
Me.button1.Location = New System.Drawing.Point(184, 232)
Me.button1.Name = "button1"
Me.button1.Size = New System.Drawing.Size(96, 32)
Me.button1.TabIndex = 1
Me.button1.Text = "Clear"
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.button1, Me.listBox1})
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
End Sub
Private Sub button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button1.Click
listBox1().Items.Clear()
End Sub
Protected Overrides Sub wndproc(ByRef m As Message)
Select Case m.Msg
Case &H20, &H84
' Ignore WM_SETCURSOR, WM_NCHITTEST
' Because there are so many of them
Case Else
listBox1().Items.Add(m.ToString)
End Select
MyBase.WndProc(m)
End Sub
#End Region
End Class
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