VB.Net by API/System.Drawing.Drawing2D/HatchStyle
HatchStyle.BackwardDiagonal
<source lang="vbnet"> Imports System Imports System.Drawing Imports System.Collections Imports System.ruponentModel Imports System.Windows.Forms Imports System.Data Imports System.Drawing.Drawing2D public class HatchBrushStyleComboBox
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class
Public Class Form1
Inherits System.Windows.Forms.Form Private style As New HatchStyle Private forClr As Color = Color.Blue Private backClr As Color = Color.Red
- 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
"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.
Friend WithEvents Label1 As System.Windows.Forms.Label
Friend WithEvents ComboBox1 As System.Windows.Forms.ruboBox
Friend WithEvents Label2 As System.Windows.Forms.Label
Friend WithEvents TextBox1 As System.Windows.Forms.TextBox
Friend WithEvents Label3 As System.Windows.Forms.Label
Friend WithEvents TextBox2 As System.Windows.Forms.TextBox
Friend WithEvents ForColorBtn As System.Windows.Forms.Button
Friend WithEvents BackGroundBtn As System.Windows.Forms.Button
Friend WithEvents ApplyBtn As System.Windows.Forms.Button
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.Label1 = New System.Windows.Forms.Label
Me.ruboBox1 = New System.Windows.Forms.ruboBox
Me.Label2 = New System.Windows.Forms.Label
Me.TextBox1 = New System.Windows.Forms.TextBox
Me.Label3 = New System.Windows.Forms.Label
Me.TextBox2 = New System.Windows.Forms.TextBox
Me.ForColorBtn = New System.Windows.Forms.Button
Me.BackGroundBtn = New System.Windows.Forms.Button
Me.ApplyBtn = New System.Windows.Forms.Button
Me.SuspendLayout()
"
"Label1
"
Me.Label1.Location = New System.Drawing.Point(8, 8)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(72, 23)
Me.Label1.TabIndex = 0
Me.Label1.Text = "Select Style:"
"
"ComboBox1
"
Me.ruboBox1.Location = New System.Drawing.Point(96, 8)
Me.ruboBox1.Name = "ComboBox1"
Me.ruboBox1.Size = New System.Drawing.Size(121, 21)
Me.ruboBox1.TabIndex = 1
Me.ruboBox1.Text = "ComboBox1"
"
"Label2
"
Me.Label2.Location = New System.Drawing.Point(8, 40)
Me.Label2.Name = "Label2"
Me.Label2.Size = New System.Drawing.Size(96, 23)
Me.Label2.TabIndex = 2
Me.Label2.Text = "Forground Color:"
"
"TextBox1
"
Me.TextBox1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.TextBox1.Location = New System.Drawing.Point(112, 40)
Me.TextBox1.Name = "TextBox1"
Me.TextBox1.ReadOnly = True
Me.TextBox1.Size = New System.Drawing.Size(32, 20)
Me.TextBox1.TabIndex = 3
Me.TextBox1.Text = ""
"
"Label3
"
Me.Label3.Location = New System.Drawing.Point(0, 72)
Me.Label3.Name = "Label3"
Me.Label3.Size = New System.Drawing.Size(104, 23)
Me.Label3.TabIndex = 4
Me.Label3.Text = "Background Color:"
"
"TextBox2
"
Me.TextBox2.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
Me.TextBox2.Location = New System.Drawing.Point(112, 72)
Me.TextBox2.Name = "TextBox2"
Me.TextBox2.ReadOnly = True
Me.TextBox2.Size = New System.Drawing.Size(32, 20)
Me.TextBox2.TabIndex = 5
Me.TextBox2.Text = ""
"
"ForColorBtn
"
Me.ForColorBtn.Location = New System.Drawing.Point(152, 40)
Me.ForColorBtn.Name = "ForColorBtn"
Me.ForColorBtn.Size = New System.Drawing.Size(48, 23)
Me.ForColorBtn.TabIndex = 6
Me.ForColorBtn.Text = "Pick..."
"
"BackGroundBtn
"
Me.BackGroundBtn.Location = New System.Drawing.Point(152, 72)
Me.BackGroundBtn.Name = "BackGroundBtn"
Me.BackGroundBtn.Size = New System.Drawing.Size(48, 23)
Me.BackGroundBtn.TabIndex = 7
Me.BackGroundBtn.Text = "Pic..."
"
"ApplyBtn
"
Me.ApplyBtn.Location = New System.Drawing.Point(224, 72)
Me.ApplyBtn.Name = "ApplyBtn"
Me.ApplyBtn.TabIndex = 8
Me.ApplyBtn.Text = "Apply"
"
"Form1
"
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(416, 325)
Me.Controls.Add(Me.ApplyBtn)
Me.Controls.Add(Me.BackGroundBtn)
Me.Controls.Add(Me.ForColorBtn)
Me.Controls.Add(Me.TextBox2)
Me.Controls.Add(Me.Label3)
Me.Controls.Add(Me.TextBox1)
Me.Controls.Add(Me.Label2)
Me.Controls.Add(Me.ruboBox1)
Me.Controls.Add(Me.Label1)
Me.Name = "Form1"
Me.Text = "Hatch Brushes"
Me.ResumeLayout(False)
End Sub
- End Region
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
FillHatchStyles()
End Sub
Private Sub FillHatchStyles()
comboBox1.Items.Add(HatchStyle.BackwardDiagonal.ToString())
comboBox1.Items.Add(HatchStyle.Cross.ToString())
comboBox1.Items.Add(HatchStyle.DashedVertical.ToString())
comboBox1.Items.Add(HatchStyle.DiagonalCross.ToString())
comboBox1.Items.Add(HatchStyle.HorizontalBrick.ToString())
comboBox1.Items.Add(HatchStyle.LightDownwardDiagonal.ToString())
comboBox1.Items.Add(HatchStyle.LightUpwardDiagonal.ToString())
comboBox1.Text = HatchStyle.BackwardDiagonal.ToString()
End Sub "FillHatchStyles
Private Sub ApplyBtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ApplyBtn.Click
Dim g As Graphics = Me.CreateGraphics()
g.Clear(Me.BackColor)
Dim str As String = ComboBox1.Text
Select Case str
Case "BackwardDiagonal"
style = HatchStyle.BackwardDiagonal
Case "DashedVertical"
style = HatchStyle.DashedVertical
Case "Cross"
style = HatchStyle.Cross
Case "DiagonalCross"
style = HatchStyle.DiagonalCross
Case "HorizontalBrick"
style = HatchStyle.HorizontalBrick
Case "LightDownwardDiagonal"
style = HatchStyle.LightDownwardDiagonal
Case "LightUpwardDiagonal"
style = HatchStyle.LightUpwardDiagonal
Case Else
End Select
Dim brush As New HatchBrush(style, forClr, backClr)
g.FillRectangle(brush, 50, 100, 200, 200)
brush.Dispose()
g.Dispose()
End Sub
End Class
</source>
New HatchBrush
<source lang="vbnet">
Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms public class DrawArrowHatchStyleHorizontal
public Shared Sub Main
Application.Run(New Form1)
End Sub
End class public class Form1
Inherits System.Windows.Forms.Form
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
e.Graphics.ScaleTransform(30, 30, MatrixOrder.Append)
DrawArrow(e.Graphics, HatchStyle.Horizontal)
End Sub
Private Sub DrawArrow(ByVal gr As Graphics, ByVal hatch_style As HatchStyle)
Dim pts() As Point = { _
New Point(0, 1), _
New Point(2, 1), _
New Point(2, 0), _
New Point(4, 2), _
New Point(2, 4), _
New Point(2, 3), _
New Point(0, 3) _
}
gr.FillPolygon(New HatchBrush(hatch_style, Color.Black, Color.White), pts)
gr.DrawPolygon(New Pen(Color.Black, 0), pts)
End Sub
Public Sub New()
MyBase.New()
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 273)
Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
End Sub
End Class
</source>
