Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class TransparentColor
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Private Sub Timer1_Tick(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Timer1.Tick
Me.Refresh()
End Sub
Private Sub Form1_Paint(ByVal sender As Object, _
ByVal e As System.Windows.Forms.PaintEventArgs) _
Handles Me.Paint
Static currentSetting As Integer = 0
Static changeFactor As Integer = 1
Dim transparentGreen As Color
Dim canvas As Graphics = e.Graphics
currentSetting += changeFactor
If (currentSetting = 0) Or (currentSetting = 255) Then
changeFactor = -changeFactor
End If
transparentGreen = Color.FromArgb(currentSetting, 0, 255, 0)
canvas.FillRectangle(New SolidBrush(transparentGreen), 50, 50, 250, 100)
End Sub
End Class
_
Partial Class Form1
Inherits System.Windows.Forms.Form
'Form overrides dispose to clean up the component list.
_
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.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.
_
Private Sub InitializeComponent()
Me.components = New System.ComponentModel.Container
Me.Timer1 = New System.Windows.Forms.Timer(Me.components)
Me.SuspendLayout()
'
'Timer1
'
Me.Timer1.Enabled = True
Me.Timer1.Interval = 10
'
'Form1
'
Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
Me.ClientSize = New System.Drawing.Size(491, 384)
Me.DoubleBuffered = True
Me.Name = "Form1"
Me.Text = "Animating with Transparency"
Me.ResumeLayout(False)
End Sub
Friend WithEvents Timer1 As System.Windows.Forms.Timer
End Class