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

DrawItemEventArgs.DrawFocusRectangle()

<source lang="vbnet"> 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

1. 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

1. 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

 </source>