VB.Net Tutorial/2D Graphics/2D Introduction
Draw All Shapes
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class DrawAllKindsOf
public Shared Sub Main Application.Run(New Form1) End Sub
End class Public Class Form1
Inherits System.Windows.Forms.Form Public Sub New() MyBase.New() InitializeComponent() End Sub 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 components As System.ruponentModel.IContainer Friend WithEvents PictureBox1 As System.Windows.Forms.PictureBox Friend WithEvents Button1 As System.Windows.Forms.Button Friend WithEvents Button2 As System.Windows.Forms.Button Friend WithEvents Button3 As System.Windows.Forms.Button Friend WithEvents Button4 As System.Windows.Forms.Button Friend WithEvents Button5 As System.Windows.Forms.Button Friend WithEvents Button6 As System.Windows.Forms.Button Friend WithEvents Button7 As System.Windows.Forms.Button Friend WithEvents Button8 As System.Windows.Forms.Button Friend WithEvents Button9 As System.Windows.Forms.Button <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.PictureBox1 = New System.Windows.Forms.PictureBox Me.Button1 = New System.Windows.Forms.Button Me.Button2 = New System.Windows.Forms.Button Me.Button3 = New System.Windows.Forms.Button Me.Button4 = New System.Windows.Forms.Button Me.Button5 = New System.Windows.Forms.Button Me.Button6 = New System.Windows.Forms.Button Me.Button7 = New System.Windows.Forms.Button Me.Button8 = New System.Windows.Forms.Button Me.Button9 = New System.Windows.Forms.Button Me.SuspendLayout() " "PictureBox1 " Me.PictureBox1.BackColor = System.Drawing.SystemColors.Window Me.PictureBox1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D Me.PictureBox1.Dock = System.Windows.Forms.DockStyle.Left Me.PictureBox1.Location = New System.Drawing.Point(0, 0) Me.PictureBox1.Name = "PictureBox1" Me.PictureBox1.Size = New System.Drawing.Size(208, 266) Me.PictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.AutoSize Me.PictureBox1.TabIndex = 0 Me.PictureBox1.TabStop = False " "Button1 " Me.Button1.Location = New System.Drawing.Point(240, 8) Me.Button1.Name = "Button1" Me.Button1.Size = New System.Drawing.Size(56, 24) Me.Button1.TabIndex = 1 Me.Button1.Text = "Dot" " "Button2 " Me.Button2.Location = New System.Drawing.Point(240, 48) Me.Button2.Name = "Button2" Me.Button2.Size = New System.Drawing.Size(56, 24) Me.Button2.TabIndex = 2 Me.Button2.Text = "Line" " "Button3 " Me.Button3.Location = New System.Drawing.Point(240, 88) Me.Button3.Name = "Button3" Me.Button3.Size = New System.Drawing.Size(56, 24) Me.Button3.TabIndex = 3 Me.Button3.Text = "Ellipse" " "Button4 " Me.Button4.Location = New System.Drawing.Point(240, 128) Me.Button4.Name = "Button4" Me.Button4.Size = New System.Drawing.Size(56, 24) Me.Button4.TabIndex = 4 Me.Button4.Text = "Arc" " "Button5 " Me.Button5.Location = New System.Drawing.Point(240, 168) Me.Button5.Name = "Button5" Me.Button5.Size = New System.Drawing.Size(56, 24) Me.Button5.TabIndex = 5 Me.Button5.Text = "Pie" " "Button6 " Me.Button6.Location = New System.Drawing.Point(240, 208) Me.Button6.Name = "Button6" Me.Button6.Size = New System.Drawing.Size(56, 24) Me.Button6.TabIndex = 6 Me.Button6.Text = "Rectangle" " "Button7 " Me.Button7.Location = New System.Drawing.Point(312, 8) Me.Button7.Name = "Button7" Me.Button7.Size = New System.Drawing.Size(56, 24) Me.Button7.TabIndex = 7 Me.Button7.Text = "Triangle" " "Button8 " Me.Button8.Location = New System.Drawing.Point(312, 48) Me.Button8.Name = "Button8" Me.Button8.Size = New System.Drawing.Size(56, 24) Me.Button8.TabIndex = 8 Me.Button8.Text = "Polygon" " "Button9 " Me.Button9.Location = New System.Drawing.Point(312, 88) Me.Button9.Name = "Button9" Me.Button9.Size = New System.Drawing.Size(56, 24) Me.Button9.TabIndex = 9 Me.Button9.Text = "Bezier Curve" " "Form1 " Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13) Me.ClientSize = New System.Drawing.Size(376, 246) Me.Controls.Add(Me.Button9) Me.Controls.Add(Me.Button8) Me.Controls.Add(Me.Button7) Me.Controls.Add(Me.Button6) Me.Controls.Add(Me.Button5) Me.Controls.Add(Me.Button4) Me.Controls.Add(Me.Button3) Me.Controls.Add(Me.Button2) Me.Controls.Add(Me.Button1) Me.Controls.Add(Me.PictureBox1) Me.ResumeLayout(False) End Sub Dim g As System.Drawing.Graphics Dim pen1 As New System.Drawing.Pen(Color.Red, 3) Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click PictureBox1.Refresh() g = PictureBox1.CreateGraphics Dim point1 As System.Drawing.Point Dim point2 As System.Drawing.Point point1.x = 10 point1.y = 20 point2.X = 11 point2.Y = 21 g.DrawLine(pen1, point1, point2) End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click g = PictureBox1.CreateGraphics g.DrawLine(pen1, 20, 20, 160, 160) End Sub Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click g = PictureBox1.CreateGraphics g.DrawEllipse(pen1, 50, 50, 100, 150) End Sub Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click g = PictureBox1.CreateGraphics g.DrawArc(pen1, 90, 50, 100, 150, 150, 160) End Sub Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click g = PictureBox1.CreateGraphics g.DrawPie(pen1, 50, 50, 150, 150, 0, 170) End Sub Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click g = PictureBox1.CreateGraphics g.DrawRectangle(pen1, 30, 30, 50, 60) End Sub Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click Dim p(3) As System.Drawing.Point p(0).X = 0 p(0).Y = 0 p(1).X = 40 p(1).Y = 120 p(2).X = 110 p(2).Y = 70 g = PictureBox1.CreateGraphics g.DrawPolygon(pen1, p) End Sub Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click Dim p(5) As System.Drawing.Point p(0).X = 0 p(0).Y = 0 p(1).X = 40 p(1).Y = 120 p(2).X = 110 p(2).Y = 70 p(3).X = 30 p(3).Y = 30 p(4).X = 170 p(4).Y = 10 g = PictureBox1.CreateGraphics g.DrawPolygon(pen1, p) End Sub Private Sub Button9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button9.Click g = PictureBox1.CreateGraphics g.DrawBezier(pen1, 10, 20, 140, 150, 100, 30, 150, 200) End Sub
End Class</source>