form1.vb

Mastering VBNet Include Source Code

Public Class Form1
    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
    Friend WithEvents TrackBar1 As System.Windows.Forms.TrackBar
    Friend WithEvents TrackBar2 As System.Windows.Forms.TrackBar
    Friend WithEvents RichTextBox1 As System.Windows.Forms.RichTextBox

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.Container

    '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.TrackBar1 = New System.Windows.Forms.TrackBar()
        Me.TrackBar2 = New System.Windows.Forms.TrackBar()
        Me.RichTextBox1 = New System.Windows.Forms.RichTextBox()
        CType(Me.TrackBar1, System.ComponentModel.ISupportInitialize).BeginInit()
        CType(Me.TrackBar2, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'TrackBar1
        '
        Me.TrackBar1.Location = New System.Drawing.Point(0, 8)
        Me.TrackBar1.Maximum = 100
        Me.TrackBar1.Name = "TrackBar1"
        Me.TrackBar1.Size = New System.Drawing.Size(696, 42)
        Me.TrackBar1.SmallChange = 5
        Me.TrackBar1.TabIndex = 0
        Me.TrackBar1.TickFrequency = 10
        '
        'TrackBar2
        '
        Me.TrackBar2.Location = New System.Drawing.Point(0, 32)
        Me.TrackBar2.Maximum = 100
        Me.TrackBar2.Name = "TrackBar2"
        Me.TrackBar2.Size = New System.Drawing.Size(696, 42)
        Me.TrackBar2.SmallChange = 5
        Me.TrackBar2.TabIndex = 1
        Me.TrackBar2.TickFrequency = 5
        Me.TrackBar2.TickStyle = System.Windows.Forms.TickStyle.TopLeft
        '
        'RichTextBox1
        '
        Me.RichTextBox1.Location = New System.Drawing.Point(8, 72)
        Me.RichTextBox1.Name = "RichTextBox1"
        Me.RichTextBox1.Size = New System.Drawing.Size(680, 344)
        Me.RichTextBox1.TabIndex = 2
        Me.RichTextBox1.Text = "RichTextBox1"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(696, 421)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.RichTextBox1, Me.TrackBar2, Me.TrackBar1})
        Me.Name = "Form1"
        Me.Text = "TextMargin"
        CType(Me.TrackBar1, System.ComponentModel.ISupportInitialize).EndInit()
        CType(Me.TrackBar2, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub TrackBar1_Scroll(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TrackBar1.Scroll
        RichTextBox1.SelectionIndent = CInt(RichTextBox1.Width * (TrackBar1.Value / TrackBar1.Maximum))
        TrackBar2_Scroll(sender, e)
    End Sub

    Private Sub TrackBar2_Scroll(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TrackBar2.Scroll
        RichTextBox1.SelectionHangingIndent = CInt(RichTextBox1.Width * (TrackBar2.Value / TrackBar2.Maximum)) - RichTextBox1.SelectionIndent
    End Sub


    Private Sub RichTextBox1_SelectionChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles RichTextBox1.SelectionChanged
        TrackBar1.Value = (RichTextBox1.SelectionIndent / RichTextBox1.Width) * 100
        TrackBar2.Value = TrackBar1.Value + (RichTextBox1.SelectionHangingIndent / RichTextBox1.Width) * 100
    End Sub
End Class