VB.Net by API/System.Windows.Forms/DrawItemEventArgs

DrawItemEventArgs.DrawFocusRectangle()

  
Imports System
Imports System.Drawing
Imports System.Windows.Forms

Public Class MainClass

   Public Shared Sub Main()
         Application.Run(New OwnerDrawnVariableListBox())
   End Sub
   
   
End Class
Public Class OwnerDrawnVariableListBox
    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
    "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 listBox2 As System.Windows.Forms.ListBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.listBox2 = New System.Windows.Forms.ListBox()
        Me.SuspendLayout()
        "
        "listBox2
        "
        Me.listBox2.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawVariable
        Me.listBox2.Items.AddRange(New Object() {"A", "a", "B"})
        Me.listBox2.Location = New System.Drawing.Point(6, 15)
        Me.listBox2.Name = "listBox2"
        Me.listBox2.Size = New System.Drawing.Size(280, 192)
        Me.listBox2.TabIndex = 5
        "
        "OwnerDrawnVariableListBox
        "
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 222)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.listBox2})
        Me.Name = "OwnerDrawnVariableListBox"
        Me.Text = "OwnerDrawnVariableListBox"
        Me.ResumeLayout(False)
    End Sub
#End Region
    Private Sub listBox2_DrawItem(ByVal sender As Object, ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles listBox2.DrawItem
        e.DrawBackground()
        Dim textFont As Font
        textFont = New Font(e.Font.FontFamily, e.Font.Size * 2)
        e.Graphics.DrawString(listBox2.Items(e.Index).ToString(), _
                                textFont, _
                                New SolidBrush(e.ForeColor), _
                                e.Bounds.X, e.Bounds.Y)
        e.DrawFocusRectangle()
    End Sub
    Private Sub listBox2_MeasureItem(ByVal sender As Object, ByVal e As System.Windows.Forms.MeasureItemEventArgs) Handles listBox2.MeasureItem
        If e.Index Mod 2 = 0 Then e.ItemHeight *= 2
    End Sub
End Class