VB.Net by API/System.Windows.Forms/Application
Содержание
- 1 Application.AddMessageFilter
- 2 Application.ApplicationExit
- 3 Application.CompanyName
- 4 Application.DoEvents()
- 5 Application.ExecutablePath
- 6 Application.Idle
- 7 Application.ProductName
- 8 Application.ProductVersion
- 9 Application.Run
- 10 Application.StartupPath
- 11 Application.ThreadException
- 12 Application.ThreadExit
- 13 Application.UseWaitCursor
Application.AddMessageFilter
<source lang="vbnet"> Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms Imports System.Math public class MessageFilter
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class Public Class Form1
Public Class NoLeftDownMessageFilter
Implements IMessageFilter
Public Function PreFilterMessage(ByRef m As System.Windows.Forms.Message) As Boolean Implements IMessageFilter.PreFilterMessage
Const WM_LBUTTONDOWN As Long = &H201
Return (m.Msg = WM_LBUTTONDOWN)
End Function
End Class
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim no_left_down_message_filter As New NoLeftDownMessageFilter
Application.AddMessageFilter(no_left_down_message_filter)
End Sub
Private Sub Form1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Click
Application.UseWaitCursor = Not Application.UseWaitCursor
End Sub
End Class <Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1
Inherits System.Windows.Forms.Form
"Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
Private components As System.ruponentModel.IContainer
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Me.SuspendLayout()
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.Text = "UseMessageFilter"
Me.ResumeLayout(False)
End Sub
End Class
</source>
Application.ApplicationExit
<source lang="vbnet">
Imports System.Windows.Forms Public Class Form1
Inherits System.Windows.Forms.Form
Friend WithEvents button4 As System.Windows.Forms.Button
Friend WithEvents button3 As System.Windows.Forms.Button
Friend WithEvents button2 As System.Windows.Forms.Button
Friend WithEvents button1 As System.Windows.Forms.Button
Public Sub New()
MyBase.New()
Me.button4 = New System.Windows.Forms.Button()
Me.button3 = New System.Windows.Forms.Button()
Me.button2 = New System.Windows.Forms.Button()
Me.button1 = New System.Windows.Forms.Button()
Me.SuspendLayout()
"
Me.button4.Location = New System.Drawing.Point(24, 127)
Me.button4.Name = "button4"
Me.button4.Size = New System.Drawing.Size(144, 23)
Me.button4.TabIndex = 7
Me.button4.Text = "Show MessageBox"
"
Me.button3.Location = New System.Drawing.Point(24, 90)
Me.button3.Name = "button3"
Me.button3.Size = New System.Drawing.Size(144, 23)
Me.button3.TabIndex = 6
Me.button3.Text = "Throw Exception"
"
Me.button2.Location = New System.Drawing.Point(24, 53)
Me.button2.Name = "button2"
Me.button2.Size = New System.Drawing.Size(144, 23)
Me.button2.TabIndex = 5
Me.button2.Text = "Application.ExitThread"
"
Me.button1.Location = New System.Drawing.Point(24, 16)
Me.button1.Name = "button1"
Me.button1.Size = New System.Drawing.Size(144, 23)
Me.button1.TabIndex = 4
Me.button1.Text = "Application.Exit"
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(192, 166)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.button4, Me.button3, Me.button2, Me.button1})
Me.ResumeLayout(False)
End Sub
Shared Sub App_Exit(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_Exit")
End Sub
Shared Sub App_Idle(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_Idle")
End Sub
Shared Sub App_ThreadingException(ByVal sender As Object, ByVal e As System.Threading.ThreadExceptionEventArgs)
System.Diagnostics.Debug.WriteLine("App_ThreadException")
Dim msg As String = "A problem has occurred in this application." & vbCrLf & vbCrLf & _
vbTab & e.Exception.Message & vbCrLf & vbCrLf & _
"Would you like to continue the application so that " & vbCrLf & _
"you can save your work?"
Dim res As DialogResult = MessageBox.Show(msg, "Unexpected Error", MessageBoxButtons.YesNo)
If res = System.Windows.Forms.DialogResult.Yes Then Exit Sub
Application.Exit()
End Sub
Shared Sub DumpThreadID(ByVal name As String)
System.Diagnostics.Debug.WriteLine(name & " thread id= " & System.AppDomain.GetCurrentThreadId().ToString())
End Sub
Shared Sub DummyThreadStart()
DumpThreadID("Dummy Thread")
AddHandler Application.ThreadExit, New EventHandler(AddressOf App_ThreadExit)
End Sub
Shared Sub Main()
AddHandler Application.ThreadException, New System.Threading.ThreadExceptionEventHandler(AddressOf App_ThreadingException)
AddHandler Application.Idle, New EventHandler(AddressOf App_Idle)
AddHandler Application.ThreadExit, New EventHandler(AddressOf App_ThreadExit)
AddHandler Application.ApplicationExit, New EventHandler(AddressOf App_Exit)
DumpThreadID("UI Thread")
Dim dummythread As System.Threading.Thread = New System.Threading.Thread(New System.Threading.ThreadStart(AddressOf DummyThreadStart))
dummythread.Start()
Application.Run(New Form1())
End Sub
Shared Sub App_ThreadExit(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_ThreadExit on thread id= " & System.AppDomain.GetCurrentThreadId().ToString())
End Sub
Private Sub button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button1.Click
Application.Exit()
End Sub
Private Sub button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button2.Click
Application.ExitThread()
End Sub
Private Sub button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button3.Click
Throw New System.IO.FileLoadException()
End Sub
End Class
</source>
Application.CompanyName
<source lang="vbnet"> Imports System.Windows.Forms public class Test
public Shared Sub Main
Console.WriteLine(Application.rupanyName)
Console.WriteLine(Application.ProductName)
Console.WriteLine(Application.ProductVersion)
End Sub
End class
</source>
Application.DoEvents()
<source lang="vbnet">
Option Strict On imports System imports System.Drawing imports System.Windows.Forms public class ProgressBars : inherits Form
dim pb as ProgressBar
dim lbl as Label
public sub New()
Size = new Size(300,200)
dim btn as new Button()
btn.Parent = me
btn.Text = "&Start"
btn.Location = new Point(0,0)
AddHandler btn.Click, AddressOf btn_OnClick
lbl = new Label()
lbl.Parent = me
lbl.Size = new Size(100,23)
lbl.Location = new Point(0,25)
lbl.BorderStyle = BorderStyle.FixedSingle
lbl.TextAlign = ContentAlignment.MiddleCenter
lbl.Text = ""
pb = new ProgressBar()
pb.Parent = me
pb.Location = new Point(0, 70)
pb.Size = new Size(400, 20)
pb.Minimum = 0 " the default value
pb.Maximum = 100 " the default value
end sub " close for constructor
private sub btn_OnClick(ByVal sender as object,ByVal e as EventArgs)
dim cntr as integer = 0
pb.Value = 0
pb.Step = 1
for i as integer = 0 to 100000
cntr = cntr + 1
if cntr mod 100 = 0 then
lbl.Text = cntr.ToString()
pb.PerformStep()
Application.DoEvents()
System.Threading.Thread.Sleep(40)
end if
next
end sub
public shared sub Main()
Application.Run(new ProgressBars())
end sub
end class
</source>
Application.ExecutablePath
<source lang="vbnet"> Imports System.Windows.Forms Public Class Tester
Public Shared Sub Main
Console.WriteLine(Application.ExecutablePath)
Console.WriteLine(Application.StartupPath)
End Sub
End Class
</source>
Application.Idle
<source lang="vbnet">
Imports System.Windows.Forms Public Class Form1
Inherits System.Windows.Forms.Form
Friend WithEvents button4 As System.Windows.Forms.Button
Friend WithEvents button3 As System.Windows.Forms.Button
Friend WithEvents button2 As System.Windows.Forms.Button
Friend WithEvents button1 As System.Windows.Forms.Button
Public Sub New()
MyBase.New()
Me.button4 = New System.Windows.Forms.Button()
Me.button3 = New System.Windows.Forms.Button()
Me.button2 = New System.Windows.Forms.Button()
Me.button1 = New System.Windows.Forms.Button()
Me.SuspendLayout()
"
Me.button4.Location = New System.Drawing.Point(24, 127)
Me.button4.Name = "button4"
Me.button4.Size = New System.Drawing.Size(144, 23)
Me.button4.TabIndex = 7
Me.button4.Text = "Show MessageBox"
"
Me.button3.Location = New System.Drawing.Point(24, 90)
Me.button3.Name = "button3"
Me.button3.Size = New System.Drawing.Size(144, 23)
Me.button3.TabIndex = 6
Me.button3.Text = "Throw Exception"
"
Me.button2.Location = New System.Drawing.Point(24, 53)
Me.button2.Name = "button2"
Me.button2.Size = New System.Drawing.Size(144, 23)
Me.button2.TabIndex = 5
Me.button2.Text = "Application.ExitThread"
"
Me.button1.Location = New System.Drawing.Point(24, 16)
Me.button1.Name = "button1"
Me.button1.Size = New System.Drawing.Size(144, 23)
Me.button1.TabIndex = 4
Me.button1.Text = "Application.Exit"
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(192, 166)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.button4, Me.button3, Me.button2, Me.button1})
Me.ResumeLayout(False)
End Sub
Shared Sub App_Exit(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_Exit")
End Sub
Shared Sub App_Idle(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_Idle")
End Sub
Shared Sub App_ThreadingException(ByVal sender As Object, ByVal e As System.Threading.ThreadExceptionEventArgs)
System.Diagnostics.Debug.WriteLine("App_ThreadException")
Dim msg As String = "A problem has occurred in this application." & vbCrLf & vbCrLf & _
vbTab & e.Exception.Message & vbCrLf & vbCrLf & _
"Would you like to continue the application so that " & vbCrLf & _
"you can save your work?"
Dim res As DialogResult = MessageBox.Show(msg, "Unexpected Error", MessageBoxButtons.YesNo)
If res = System.Windows.Forms.DialogResult.Yes Then Exit Sub
Application.Exit()
End Sub
Shared Sub DumpThreadID(ByVal name As String)
System.Diagnostics.Debug.WriteLine(name & " thread id= " & System.AppDomain.GetCurrentThreadId().ToString())
End Sub
Shared Sub DummyThreadStart()
DumpThreadID("Dummy Thread")
AddHandler Application.ThreadExit, New EventHandler(AddressOf App_ThreadExit)
End Sub
Shared Sub Main()
AddHandler Application.ThreadException, New System.Threading.ThreadExceptionEventHandler(AddressOf App_ThreadingException)
AddHandler Application.Idle, New EventHandler(AddressOf App_Idle)
AddHandler Application.ThreadExit, New EventHandler(AddressOf App_ThreadExit)
AddHandler Application.ApplicationExit, New EventHandler(AddressOf App_Exit)
DumpThreadID("UI Thread")
Dim dummythread As System.Threading.Thread = New System.Threading.Thread(New System.Threading.ThreadStart(AddressOf DummyThreadStart))
dummythread.Start()
Application.Run(New Form1())
End Sub
Shared Sub App_ThreadExit(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_ThreadExit on thread id= " & System.AppDomain.GetCurrentThreadId().ToString())
End Sub
Private Sub button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button1.Click
Application.Exit()
End Sub
Private Sub button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button2.Click
Application.ExitThread()
End Sub
Private Sub button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button3.Click
Throw New System.IO.FileLoadException()
End Sub
End Class
</source>
Application.ProductName
<source lang="vbnet"> Imports System.Windows.Forms public class Test
public Shared Sub Main
Console.WriteLine(Application.rupanyName)
Console.WriteLine(Application.ProductName)
Console.WriteLine(Application.ProductVersion)
End Sub
End class
</source>
Application.ProductVersion
<source lang="vbnet"> Imports System.Windows.Forms public class Test
public Shared Sub Main
Console.WriteLine(Application.rupanyName)
Console.WriteLine(Application.ProductName)
Console.WriteLine(Application.ProductVersion)
End Sub
End class
</source>
Application.Run
<source lang="vbnet">
Imports System.Drawing.Drawing2D Imports System Imports System.Drawing.Text Imports System.Drawing Imports System.Windows.Forms Imports System.Math 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
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.ResizeRedraw = True
End Sub
Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
Dim txt As String
Dim the_font As New Font("Times New Roman", 30, FontStyle.Bold, GraphicsUnit.Pixel)
Dim layout_rect As RectangleF
e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit
layout_rect = New RectangleF(100, 0, 180, 70)
txt = "Today is Monday. Tomorrow is Friday"
Dim string_format As New StringFormat
string_format.Trimming = StringTrimming.EllipsisWord
e.Graphics.DrawString(txt, the_font, Brushes.Black, layout_rect, string_format)
e.Graphics.DrawRectangle(Pens.Black, Rectangle.Round(layout_rect))
End Sub
End Class
</source>
Application.StartupPath
<source lang="vbnet"> Imports System.Windows.Forms Public Class Tester
Public Shared Sub Main
Console.WriteLine(Application.ExecutablePath)
Console.WriteLine(Application.StartupPath)
End Sub
End Class
</source>
Application.ThreadException
<source lang="vbnet">
Imports System.Windows.Forms Public Class Form1
Inherits System.Windows.Forms.Form
Friend WithEvents button4 As System.Windows.Forms.Button
Friend WithEvents button3 As System.Windows.Forms.Button
Friend WithEvents button2 As System.Windows.Forms.Button
Friend WithEvents button1 As System.Windows.Forms.Button
Public Sub New()
MyBase.New()
Me.button4 = New System.Windows.Forms.Button()
Me.button3 = New System.Windows.Forms.Button()
Me.button2 = New System.Windows.Forms.Button()
Me.button1 = New System.Windows.Forms.Button()
Me.SuspendLayout()
"
Me.button4.Location = New System.Drawing.Point(24, 127)
Me.button4.Name = "button4"
Me.button4.Size = New System.Drawing.Size(144, 23)
Me.button4.TabIndex = 7
Me.button4.Text = "Show MessageBox"
"
Me.button3.Location = New System.Drawing.Point(24, 90)
Me.button3.Name = "button3"
Me.button3.Size = New System.Drawing.Size(144, 23)
Me.button3.TabIndex = 6
Me.button3.Text = "Throw Exception"
"
Me.button2.Location = New System.Drawing.Point(24, 53)
Me.button2.Name = "button2"
Me.button2.Size = New System.Drawing.Size(144, 23)
Me.button2.TabIndex = 5
Me.button2.Text = "Application.ExitThread"
"
Me.button1.Location = New System.Drawing.Point(24, 16)
Me.button1.Name = "button1"
Me.button1.Size = New System.Drawing.Size(144, 23)
Me.button1.TabIndex = 4
Me.button1.Text = "Application.Exit"
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(192, 166)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.button4, Me.button3, Me.button2, Me.button1})
Me.ResumeLayout(False)
End Sub
Shared Sub App_Exit(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_Exit")
End Sub
Shared Sub App_Idle(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_Idle")
End Sub
Shared Sub App_ThreadingException(ByVal sender As Object, ByVal e As System.Threading.ThreadExceptionEventArgs)
System.Diagnostics.Debug.WriteLine("App_ThreadException")
Dim msg As String = "A problem has occurred in this application." & vbCrLf & vbCrLf & _
vbTab & e.Exception.Message & vbCrLf & vbCrLf & _
"Would you like to continue the application so that " & vbCrLf & _
"you can save your work?"
Dim res As DialogResult = MessageBox.Show(msg, "Unexpected Error", MessageBoxButtons.YesNo)
If res = System.Windows.Forms.DialogResult.Yes Then Exit Sub
Application.Exit()
End Sub
Shared Sub DumpThreadID(ByVal name As String)
System.Diagnostics.Debug.WriteLine(name & " thread id= " & System.AppDomain.GetCurrentThreadId().ToString())
End Sub
Shared Sub DummyThreadStart()
DumpThreadID("Dummy Thread")
AddHandler Application.ThreadExit, New EventHandler(AddressOf App_ThreadExit)
End Sub
Shared Sub Main()
AddHandler Application.ThreadException, New System.Threading.ThreadExceptionEventHandler(AddressOf App_ThreadingException)
AddHandler Application.Idle, New EventHandler(AddressOf App_Idle)
AddHandler Application.ThreadExit, New EventHandler(AddressOf App_ThreadExit)
AddHandler Application.ApplicationExit, New EventHandler(AddressOf App_Exit)
DumpThreadID("UI Thread")
Dim dummythread As System.Threading.Thread = New System.Threading.Thread(New System.Threading.ThreadStart(AddressOf DummyThreadStart))
dummythread.Start()
Application.Run(New Form1())
End Sub
Shared Sub App_ThreadExit(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_ThreadExit on thread id= " & System.AppDomain.GetCurrentThreadId().ToString())
End Sub
Private Sub button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button1.Click
Application.Exit()
End Sub
Private Sub button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button2.Click
Application.ExitThread()
End Sub
Private Sub button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button3.Click
Throw New System.IO.FileLoadException()
End Sub
End Class
</source>
Application.ThreadExit
<source lang="vbnet">
Imports System.Windows.Forms Public Class Form1
Inherits System.Windows.Forms.Form
Friend WithEvents button4 As System.Windows.Forms.Button
Friend WithEvents button3 As System.Windows.Forms.Button
Friend WithEvents button2 As System.Windows.Forms.Button
Friend WithEvents button1 As System.Windows.Forms.Button
Public Sub New()
MyBase.New()
Me.button4 = New System.Windows.Forms.Button()
Me.button3 = New System.Windows.Forms.Button()
Me.button2 = New System.Windows.Forms.Button()
Me.button1 = New System.Windows.Forms.Button()
Me.SuspendLayout()
"
Me.button4.Location = New System.Drawing.Point(24, 127)
Me.button4.Name = "button4"
Me.button4.Size = New System.Drawing.Size(144, 23)
Me.button4.TabIndex = 7
Me.button4.Text = "Show MessageBox"
"
Me.button3.Location = New System.Drawing.Point(24, 90)
Me.button3.Name = "button3"
Me.button3.Size = New System.Drawing.Size(144, 23)
Me.button3.TabIndex = 6
Me.button3.Text = "Throw Exception"
"
Me.button2.Location = New System.Drawing.Point(24, 53)
Me.button2.Name = "button2"
Me.button2.Size = New System.Drawing.Size(144, 23)
Me.button2.TabIndex = 5
Me.button2.Text = "Application.ExitThread"
"
Me.button1.Location = New System.Drawing.Point(24, 16)
Me.button1.Name = "button1"
Me.button1.Size = New System.Drawing.Size(144, 23)
Me.button1.TabIndex = 4
Me.button1.Text = "Application.Exit"
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(192, 166)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.button4, Me.button3, Me.button2, Me.button1})
Me.ResumeLayout(False)
End Sub
Shared Sub App_Exit(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_Exit")
End Sub
Shared Sub App_Idle(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_Idle")
End Sub
Shared Sub App_ThreadingException(ByVal sender As Object, ByVal e As System.Threading.ThreadExceptionEventArgs)
System.Diagnostics.Debug.WriteLine("App_ThreadException")
Dim msg As String = "A problem has occurred in this application." & vbCrLf & vbCrLf & _
vbTab & e.Exception.Message & vbCrLf & vbCrLf & _
"Would you like to continue the application so that " & vbCrLf & _
"you can save your work?"
Dim res As DialogResult = MessageBox.Show(msg, "Unexpected Error", MessageBoxButtons.YesNo)
If res = System.Windows.Forms.DialogResult.Yes Then Exit Sub
Application.Exit()
End Sub
Shared Sub DumpThreadID(ByVal name As String)
System.Diagnostics.Debug.WriteLine(name & " thread id= " & System.AppDomain.GetCurrentThreadId().ToString())
End Sub
Shared Sub DummyThreadStart()
DumpThreadID("Dummy Thread")
AddHandler Application.ThreadExit, New EventHandler(AddressOf App_ThreadExit)
End Sub
Shared Sub Main()
AddHandler Application.ThreadException, New System.Threading.ThreadExceptionEventHandler(AddressOf App_ThreadingException)
AddHandler Application.Idle, New EventHandler(AddressOf App_Idle)
AddHandler Application.ThreadExit, New EventHandler(AddressOf App_ThreadExit)
AddHandler Application.ApplicationExit, New EventHandler(AddressOf App_Exit)
DumpThreadID("UI Thread")
Dim dummythread As System.Threading.Thread = New System.Threading.Thread(New System.Threading.ThreadStart(AddressOf DummyThreadStart))
dummythread.Start()
Application.Run(New Form1())
End Sub
Shared Sub App_ThreadExit(ByVal sender As Object, ByVal e As EventArgs)
System.Diagnostics.Debug.WriteLine("App_ThreadExit on thread id= " & System.AppDomain.GetCurrentThreadId().ToString())
End Sub
Private Sub button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button1.Click
Application.Exit()
End Sub
Private Sub button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button2.Click
Application.ExitThread()
End Sub
Private Sub button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button3.Click
Throw New System.IO.FileLoadException()
End Sub
End Class
</source>
Application.UseWaitCursor
<source lang="vbnet"> Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms Imports System.Math public class MessageFilter
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class Public Class Form1
Public Class NoLeftDownMessageFilter
Implements IMessageFilter
Public Function PreFilterMessage(ByRef m As System.Windows.Forms.Message) As Boolean Implements IMessageFilter.PreFilterMessage
Const WM_LBUTTONDOWN As Long = &H201
Return (m.Msg = WM_LBUTTONDOWN)
End Function
End Class
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim no_left_down_message_filter As New NoLeftDownMessageFilter
Application.AddMessageFilter(no_left_down_message_filter)
End Sub
Private Sub Form1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Click
Application.UseWaitCursor = Not Application.UseWaitCursor
End Sub
End Class <Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _ Partial Public Class Form1
Inherits System.Windows.Forms.Form
"Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
Private components As System.ruponentModel.IContainer
<System.Diagnostics.DebuggerStepThrough()> _
Private Sub InitializeComponent()
Me.SuspendLayout()
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.Text = "UseMessageFilter"
Me.ResumeLayout(False)
End Sub
End Class
</source>
