Mega Code Archive
Interpolation Mode Demo
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Imports System
Imports System.Windows.Forms
Imports System.Drawing.Text
Imports System.Drawing
Public Class MainClass
Shared Sub Main(ByVal args As String())
Dim myform As Form = New Form1()
Application.Run(myform)
End Sub
End Class
Public Class Form1
Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles MyBase.Paint
' Draw a smiley face.
Dim bm As New Bitmap("test.ico")
' Display at full scale.
e.Graphics.DrawImage(bm, 10, 10)
' Display at reduced scales.
Dim x As Integer = 10
Dim y As Integer = 120
DrawingInterpolationMode(e.Graphics, bm, Drawing2D.InterpolationMode.Default, x, y)
DrawingInterpolationMode(e.Graphics, bm, Drawing2D.InterpolationMode.Low, x, y)
DrawingInterpolationMode(e.Graphics, bm, Drawing2D.InterpolationMode.High, x, y)
DrawingInterpolationMode(e.Graphics, bm, Drawing2D.InterpolationMode.Bilinear, x, y)
x = 10
y += 100
DrawingInterpolationMode(e.Graphics, bm, Drawing2D.InterpolationMode.Bicubic, x, y)
DrawingInterpolationMode(e.Graphics, bm, Drawing2D.InterpolationMode.NearestNeighbor, x, y)
DrawingInterpolationMode(e.Graphics, bm, Drawing2D.InterpolationMode.HighQualityBilinear, x, y)
DrawingInterpolationMode(e.Graphics, bm, Drawing2D.InterpolationMode.HighQualityBicubic, x, y)
End Sub
Private Sub DrawingInterpolationMode(ByVal gr As Graphics, ByVal bm As Bitmap, ByVal interpolation_mode As Drawing2D.InterpolationMode, ByRef x As Integer, ByVal y As Integer)
gr.DrawString(interpolation_mode.ToString, Me.Font, Brushes.Black, x, y)
gr.InterpolationMode = interpolation_mode
gr.DrawImage(bm, x, y + 20, 50, 50)
gr.InterpolationMode = interpolation_mode
Dim src_rect As New Rectangle(35, 35, 30, 30)
Dim dest_rect As New Rectangle(x + 60, y + 20, 50, 50)
gr.DrawImage(bm, dest_rect, src_rect, GraphicsUnit.Pixel)
gr.DrawRectangle(Pens.Black, dest_rect)
x += 120
End Sub
End Class
<Global.Microsoft.VisualBasic.CompilerServices.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
'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.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(564, 209)
Me.Name = "Form1"
Me.Text = "Title"
Me.ResumeLayout(False)
End Sub
End Class
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