в 16:40, 26 мая 2010

2010-05-26T16:40:30Z

Admin: 1 версия

2010-05-26T12:54:06Z

1 версия

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==Double and single click==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class PictureBoxSingleDoubleClicked
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Private oldcolor As Color
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
PictureBox1.Image = System.Drawing.Image.FromFile("yourfile.jpg")
Label1.Text = "Loaded"
End Sub
Private Sub Button1_MouseDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Button1.MouseDown
If (e.Button <> MouseButtons.Left) Then
Label1.Text = "Left button"
End If
End Sub
Private Sub PictureBox1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PictureBox1.Click
Label1.Text = "single cliked"
End Sub
Private Sub PictureBox1_DoubleClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PictureBox1.DoubleClick
Label1.Text = "double clicked"
End Sub
Private Sub PictureBox1_MouseMove(ByVal sender As System.Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseMove
PictureBox1.BackColor = System.Drawing.Color.Gray
PictureBox1.Image = System.Drawing.Image.FromFile("yourfile.jpg")
Label1.Text = "(" + Str(e.X) + "," + Str(e.Y) + ")"
End Sub
Private Sub PictureBox1_MouseLeave(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PictureBox1.MouseLeave
PictureBox1.BackColor = oldcolor
PictureBox1.Image = System.Drawing.Image.FromFile("yourfile.jpg")
Label1.Text = "Exit"
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
oldcolor = PictureBox1.BackColor
End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Class Form1
Inherits System.Windows.Forms.Form
"Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
"Required by the Windows Form Designer
Private components As System.ruponentModel.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.Button1 = New System.Windows.Forms.Button
Me.Label1 = New System.Windows.Forms.Label
Me.PictureBox1 = New System.Windows.Forms.PictureBox
CType(Me.PictureBox1, System.ruponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
"
"Button1
"
Me.Button1.Location = New System.Drawing.Point(181, 231)
Me.Button1.Name = "Button1"
Me.Button1.Size = New System.Drawing.Size(75, 23)
Me.Button1.TabIndex = 0
Me.Button1.Text = "load pic"
Me.Button1.UseVisualStyleBackColor = True
"
"Label1
"
Me.Label1.AutoSize = True
Me.Label1.Location = New System.Drawing.Point(28, 9)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(41, 12)
Me.Label1.TabIndex = 1
Me.Label1.Text = "Label1"
"
"PictureBox1
"
Me.PictureBox1.Location = New System.Drawing.Point(20, 30)
Me.PictureBox1.Name = "PictureBox1"
Me.PictureBox1.Size = New System.Drawing.Size(391, 189)
Me.PictureBox1.TabIndex = 2
Me.PictureBox1.TabStop = False
"
"Form1
"
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 12.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(431, 266)
Me.Controls.Add(Me.PictureBox1)
Me.Controls.Add(Me.Label1)
Me.Controls.Add(Me.Button1)
Me.Name = "Form1"
Me.Text = "Form1"
CType(Me.PictureBox1, System.ruponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents Button1 As System.Windows.Forms.Button
Friend WithEvents Label1 As System.Windows.Forms.Label
Friend WithEvents PictureBox1 As System.Windows.Forms.PictureBox
End Class</source>

==Form mouse move event==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class FormRefresh
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Private MouseX As Integer
Private MouseY As Integer
Dim rectangle1 As Rectangle = New Rectangle(15, 35, 80, 80)
Private Sub Form1_MouseMove(ByVal sender As Object, _
ByVal e As System.Windows.Forms.MouseEventArgs) _
Handles Me.MouseMove
MouseX = e.X
MouseY = e.Y
Me.Invalidate()
End Sub
Private Sub Form1_Paint(ByVal sender As Object, _
ByVal e As System.Windows.Forms.PaintEventArgs) _
Handles Me.Paint

rectangle1.X = MouseX
rectangle1.Y = MouseY
Dim canvas As Graphics = e.Graphics
canvas.DrawRectangle(Pens.DarkRed, rectangle1)
End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Class Form1
Inherits System.Windows.Forms.Form
"Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
"Required by the Windows Form Designer
Private components As System.ruponentModel.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.SuspendLayout()
"
"Form1
"
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(469, 387)
Me.Name = "Form1"
Me.Text = "Redrawing by Invalidating"
Me.ResumeLayout(False)
End Sub
End Class</source>

==Mouse Enter and Leave==

<source lang="vbnet">Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class MouseEnterLeave
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Private ButtonBackColor As Color = Color.LightGreen
Private Sub Button2_MouseEnter(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.MouseEnter
ButtonBackColor = Color.Yellow
End Sub
Private Sub Button2_MouseLeave(ByVal sender As Object,ByVal e As System.EventArgs) Handles Button2.MouseLeave
ButtonBackColor = Color.Red
End Sub
Private Sub Button2_MouseDown(ByVal sender As Object,ByVal e As System.Windows.Forms.MouseEventArgs) Handles Button2.MouseDown
ButtonBackColor = Color.Green
End Sub
Private Sub Button2_MouseUp(ByVal sender As Object,ByVal e As System.Windows.Forms.MouseEventArgs) Handles Button2.MouseUp
ButtonBackColor = Color.LightGreen
Button2.Refresh()
End Sub
Private Sub Button2_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Button2.Paint
Dim canvas As Graphics = e.Graphics
canvas.Clear(ButtonBackColor)
Dim atomPen As Pen = New Pen(Color.Blue, 2)
Dim largerFont As Font = New Font(Me.Font.Name, 10)
e.Graphics.DrawString("This is a form", largerFont, Brushes.Black,0, 20)
End Sub
Private Sub Button2_Click(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles Button2.Click
MsgBox("Button2 clicked!", MsgBoxStyle.Exclamation,"Painting on Controls")
End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Class Form1
Inherits System.Windows.Forms.Form
"Form overrides dispose to clean up the component list.
<System.Diagnostics.DebuggerNonUserCode()> _
Protected Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing AndAlso components IsNot Nothing Then
components.Dispose()
End If
MyBase.Dispose(disposing)
End Sub
"Required by the Windows Form Designer
Private components As System.ruponentModel.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.Panel1 = New System.Windows.Forms.Panel
Me.Button2 = New System.Windows.Forms.Button
Me.SuspendLayout()
"
"Panel1
"
Me.Panel1.Location = New System.Drawing.Point(56, 32)
Me.Panel1.Name = "Panel1"
Me.Panel1.Size = New System.Drawing.Size(368, 40)
Me.Panel1.TabIndex = 0
"
"Button2
"
Me.Button2.Location = New System.Drawing.Point(272, 104)
Me.Button2.Name = "Button2"
Me.Button2.Size = New System.Drawing.Size(152, 152)
Me.Button2.TabIndex = 1
Me.Button2.Text = "Button2"
Me.Button2.UseVisualStyleBackColor = True
"
"Form1
"
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(479, 284)
Me.Controls.Add(Me.Button2)
Me.Controls.Add(Me.Panel1)
Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
Me.MaximizeBox = False
Me.Text = "Special Effects"
Me.ResumeLayout(False)
End Sub
Friend WithEvents Panel1 As System.Windows.Forms.Panel
Friend WithEvents Button2 As System.Windows.Forms.Button
End Class</source>

==Mouse Events Illustation==

<source lang="vbnet">Option Strict On
imports System
imports System.Drawing
imports System.Windows.Forms
public class MouseEvents : inherits Form
private lbl as Label
private WithEvents btnReset as Button
public sub New()
Size = new Size(400,600)
btnReset = new Button()
btnReset.Parent = me
btnReset.Location = new Point(250,50)
btnReset.Text = "Reset"
lbl = new Label()
lbl.Parent = me
lbl.Location = new Point(50,50)
lbl.Size = new Size(250,250)
lbl.BorderStyle = BorderStyle.Fixed3D

AddHandler lbl.MouseEnter, AddressOf lbl_MouseEnter
AddHandler lbl.MouseHover, AddressOf lbl_MouseHover
AddHandler lbl.MouseLeave, AddressOf lbl_MouseLeave
AddHandler lbl.MouseDown, AddressOf lbl_MouseDown
AddHandler lbl.MouseMove, AddressOf lbl_MouseMove
AddHandler lbl.MouseUp, AddressOf lbl_MouseUp
AddHandler lbl.MouseWheel, AddressOf lbl_MouseWheel
AddHandler lbl.Click, AddressOf lbl_Click
AddHandler lbl.DoubleClick, AddressOf lbl_DoubleClick
end sub
public shared sub Main()
Application.Run(new MouseEvents())
end sub
private sub btnReset_Click(ByVal sender as object, _
ByVal e as EventArgs) _
Handles btnReset.Click
lbl.Text = ""
end sub
private sub lbl_MouseEnter(ByVal sender as object, _
ByVal e as EventArgs)
lbl.Text = "MouseEnter"
Console.WriteLine("Label MouseEnter")
end sub
private sub lbl_MouseHover(ByVal sender as object, _
ByVal e as EventArgs)
lbl.Text = "MouseHover"
Console.WriteLine("Label MouseHover")
end sub
private sub lbl_MouseLeave(ByVal sender as object, _
ByVal e as EventArgs)
lbl.Text = "MouseLeave"
Console.WriteLine("Label MouseLeave")
end sub
private sub lbl_MouseDown(ByVal sender as object, _
ByVal e as MouseEventArgs)
lbl.Text = "MouseDown"
Console.WriteLine("Label MouseDown")
Console.WriteLine("Button: " + e.Button.ToString())
Console.WriteLine("Clicks: " + e.Clicks.ToString())
Console.WriteLine("Delta: " + e.Delta.ToString())
Console.WriteLine("X: " + e.X.ToString())
Console.WriteLine("Y: " + e.Y.ToString())
end sub
private sub lbl_MouseMove(ByVal sender as object,ByVal e as MouseEventArgs)
lbl.Text = "MouseMove"
Console.WriteLine("Label MouseMove")
Console.WriteLine("Button: " + e.Button.ToString())
Console.WriteLine("Clicks: " + e.Clicks.ToString())
Console.WriteLine("Delta: " + e.Delta.ToString())
Console.WriteLine("X: " + e.X.ToString())
Console.WriteLine("Y: " + e.Y.ToString())
end sub
private sub lbl_MouseUp(ByVal sender as object, _
ByVal e as MouseEventArgs)
lbl.Text = "MouseUp"
Console.WriteLine("Label MouseUp")
Console.WriteLine("Button: " + e.Button.ToString())
Console.WriteLine("Clicks: " + e.Clicks.ToString())
Console.WriteLine("Delta: " + e.Delta.ToString())
Console.WriteLine("X: " + e.X.ToString())
Console.WriteLine("Y: " + e.Y.ToString())
end sub
private sub lbl_MouseWheel(ByVal sender as object,ByVal e as MouseEventArgs)
lbl.Text = "MouseWheel"
Console.WriteLine("Label MouseWheel")
Console.WriteLine("Button: " + e.Button.ToString())
Console.WriteLine("Clicks: " + e.Clicks.ToString())
Console.WriteLine("Delta: " + e.Delta.ToString())
Console.WriteLine("X: " + e.X.ToString())
Console.WriteLine("Y: " + e.Y.ToString())
end sub
private sub lbl_Click(ByVal sender as object,ByVal e as EventArgs)
lbl.Text = "Click"
Console.WriteLine("Label Click")
end sub
private sub lbl_DoubleClick(ByVal sender as object,ByVal e as EventArgs)
lbl.Text = "DoubleClick"
Console.WriteLine("Label DoubleClick")
end sub
protected overrides sub OnMouseEnter(ByVal e as EventArgs)
myBase.OnMouseEnter(e)
Console.WriteLine("Form MouseEnter")
end sub
protected overrides sub OnMouseHover(ByVal e as EventArgs)
myBase.OnMouseHover(e)
Console.WriteLine("Form MouseHover")
end sub
protected overrides sub OnMouseLeave(ByVal e as EventArgs)
myBase.OnMouseLeave(e)
Console.WriteLine("Form MouseLeave")
end sub
end class</source>

==Mouse move event==

<source lang="vbnet">Imports System.Windows.Forms
public class MouseMoveEvent
public Shared Sub Main
Application.Run(New 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

Private WithEvents Label1 As System.Windows.Forms.Label
Private WithEvents lblX As System.Windows.Forms.Label
Private WithEvents Label3 As System.Windows.Forms.Label
Private WithEvents lblY As System.Windows.Forms.Label
"Required by the Windows Form Designer
Private components As System.ruponentModel.Container
"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.DebuggerStepThroughAttribute()> Private Sub InitializeComponent()
Me.Label1 = New System.Windows.Forms.Label()
Me.Label3 = New System.Windows.Forms.Label()
Me.lblX = New System.Windows.Forms.Label()
Me.lblY = New System.Windows.Forms.Label()
Me.SuspendLayout()
"
"Label1
"
Me.Label1.Location = New System.Drawing.Point(8, 16)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(80, 16)
Me.Label1.TabIndex = 0
Me.Label1.Text = "X coordinate"
"
"Label3
"
Me.Label3.Location = New System.Drawing.Point(8, 64)
Me.Label3.Name = "Label3"
Me.Label3.Size = New System.Drawing.Size(80, 16)
Me.Label3.TabIndex = 2
Me.Label3.Text = "Y coordinate"
"
"lblX
"
Me.lblX.Location = New System.Drawing.Point(184, 16)
Me.lblX.Name = "lblX"
Me.lblX.Size = New System.Drawing.Size(80, 16)
Me.lblX.TabIndex = 1
"
"lblY
"
Me.lblY.Location = New System.Drawing.Point(184, 64)
Me.lblY.Name = "lblY"
Me.lblY.Size = New System.Drawing.Size(80, 16)
Me.lblY.TabIndex = 3
"
"Form1
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(312, 101)
Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.lblY, Me.Label3, Me.lblX, Me.Label1})
Me.Name = "Form1"
Me.Text = "Form1"
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub Form1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseMove
lblX.Text = e.X
lblY.Text = e.Y
End Sub
End Class</source>

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VB.Net Tutorial/Event/Mouse Event - История изменений

в 16:40, 26 мая 2010

Admin: 1 версия